WS-5671_20030_CA_MRP_20210217

Arcadis G&M of North Carolina, Inc.
5420 Wade Park Blvd., Suite 350
Raleigh, NC 27607
Tel [phone]
Fax [phone]
www.arcadis.com
Ms. Carin Lee Kromm
NCDEQ – UST Section
450 West Hanes Mill Road, Suite 300
Winston-Salem, North Carolina 27105
Subject:
Fourth Quarter Groundwater Monitoring and Sampling Report – 2020
Former ExxonMobil Facility #99GRE
101 N. Spring Street
Greensboro, Guilford County, North Carolina
Incident No. 20030
Risk Classification: High
Dear Ms. Kromm:
On behalf of ExxonMobil Environmental and Property Solutions Company
(E&PS), Arcadis G&M of North Carolina, Inc. (Arcadis) is submitting the attached
Fourth Quarter Groundwater Monitoring and Sampling Report – 2020 dated
January 29, 2021 for the above referenced site.
Arcadis is requesting that the risk classification be reduced and the status of No
Further Action be granted for this Site since groundwater sampling since the
October 2018 injection event have shown dissolved phase concentrations
sampling results have remained below NC GCLs and previous groundwater
modeling has shown that dissolved phase COCs will not extend beyond the Site
property or extend to the unnamed tributary.
Please contact me at 770.384.6584 with any questions or concerns related to the
Report or this incident number.
Sincerely,
Arcadis G&M of North Carolina, Inc.
Kelley Sharpe
Project Manager
ENVIRONMENT
Date:
February 17, 2021
Contact:
Kelley Sharpe
Phone:
770.384.6584
Email:
[e-mail]
Our ref:
30007812
Received: 4/19/2021
arcadis.com
Ms. Carin Lee Kromm
February 17, 2021
Page:
2/2
Copies:
Ms. Jewel Cox– E&PS
Mr. Gene Mayo, Guilford County Environmental Health
File – EM #99GRE
4th Quarterly Groundwater Monitoring and Sampling Report – 2020
arcadis.com i
CONTENTS
Executive Summary ....................................................................................................................................... 2
1 Introduction ............................................................................................................................................. 4
2 Free Product ........................................................................................................................................... 5
3 Groundwater Monitoring ......................................................................................................................... 5
3.1 Groundwater Gauging .................................................................................................................... 5
3.2 Groundwater Sampling ................................................................................................................... 5
3.3 Groundwater Analytical Results ...................................................................................................... 6
4 Site Remediation ..................................................................................................................................... 7
4.1 Remediation Events to Date ........................................................................................................... 7
5 Conclusions and Recommendations ...................................................................................................... 8

TABLES
Table 1. Groundwater Elevation Data
Table 2. Dissolved-Phase VOC Concentrations In Groundwater

FIGURES
Figure 1. Site Location Map
Figure 2. Site Map
Figure 3. Potentiometric Surface Map - November 11, 2020
Figure 4. Dissolved-Phase COC Concentrations in Groundwater

APPENDICES
A – Laboratory Analytical Report and Chain-of-Custody – November 30, 2020

4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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EXECUTIVE SUMMARY
On behalf of ExxonMobil Environmental and Property Solutions Company (E&PS), Arcadis G&M of North
Carolina, Inc. (Arcadis) completed the fourth quarterly 2020 liquid level monitoring and groundwater
sampling event at the former ExxonMobil Facility #99-GRE located at 101 North Spring Street (formerly
addressed at 615 West Friendly Avenue) in Greensboro, Guilford County, North Carolina (the Site). The
objective of the groundwater monitoring and sampling program is to evaluate concentrations of dissolved-
phase chemicals of concern (COCs), determine the effectiveness of the 2018 calcium peroxide injection
event, and maintain compliance with the North Carolina Department of Environmental Quality (NCDEQ)
Underground Storage Tank (UST) Program requirements for the site.
On October 22-30, 2018, Arcadis subcontracted Remington Technologies, LLC (Remington) to complete
a calcium peroxide injection at the Site. Injections were completed within the proposed injection zone, as
outlined in the “Notification of Intent (NOI) to Construct or Operate Injection Wells Form” submitted to the
NCDEQ Division of Water Resources (DWR), Underground Injection Control (UIC) Program on May 21,
2018. The NCDEQ DWR approved the NOI application and issued a deemed permit number WI0400492
for injection activities on June 1, 2018. Approximately 2,100 gallons of IXPER 75C Calcium Peroxide
slurry was injected into thirteen (13) temporary injection points. The location and interval of injection points
were adjusted due to an existing underground utility identified within the injection zone during utility locate
activities at the Site. Arcadis submitted an Injection Event Record detailing the October 22-30, 2018
calcium peroxide injection event on November 15, 2018.
On November 11th and 13th, 2020, Arcadis completed the fourth quarterly liquid level monitoring and
groundwater sampling event for 2020 to evaluate the current groundwater conditions and to maintain
compliance with the UIC Program requirements.
During the fourth quarterly sampling event, eight (8) groundwater monitoring wells, MW-1R, MW-4, MW-6,
MW-7, MW-8, MW-9, MW-10, and DW-1 were gauged to determine depth to water (DTW). Monitoring
wells MW-9 and MW-10 were gauged but elevations were not used in contouring because they have not
been surveyed. Depths to water ranged from 6.45 feet below top of well casing (btoc) in groundwater
monitoring well MW-10 to 16.25 feet btoc in groundwater monitoring well MW-7. Groundwater flow was
observed to be towards the west-northwest which is consistent with the historical groundwater flow
direction observed at the site. Free product was not detected in any of the groundwater monitoring wells.
Groundwater samples were collected on November 13th, 2020, from six groundwater monitoring wells
(MW-1R, MW-4, MW-6, MW-7, MW-9, and MW-10) for the fourth quarter 2020 sampling event. The
maximum concentrations of selected dissolved-phase COCs found during the sampling event are
summarized in the table below:

4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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Maximum Groundwater Concentrations (November 13th, 2020)
Chemical of Concern
(COC)
Well ID Concentration
(µg/L)
GCL Standard
(µg/L)
Benzene
MW-4
and
MW-9
3,200 5,000
Toluene MW-9 4,300 260,000
Ethylbenzene MW-4 490 84,500
Xylenes (total) MW-9 4,000 85,500
1,2-Dichloropropane All Non-Detect 600
1,2,4-Trimethylbenzene MW-9 360 28,500
1,3,5-Trimethylbenzene MW-9 190 25,000
Ethylene dibromide All Non-Detect 50

Notes:
GCL = Gross Contaminant Levels
µg/L = micrograms per liter
Dissolved-phase concentrations of benzene, toluene, ethylbenzene, total xylenes, 1,2,4-trimethylbenzene,
and 1,3,5-trimethylbenzene were detected in concentrations below the applicable North Carolina Gross
Contamination Levels (GCLs) for Groundwater in MW-4 and MW-9, and were not detected in MW-1R,
MW-6, MW-7, or MW-10.
The lateral and vertical extent of the dissolved-phase plume at the Site has been adequately delineated by
the existing monitoring well network at the Site. Based on current and historical analytical data, dissolved-
phase impacts have not mobilized off-site, and have decreased in the source area.
As recommended in the NOI application (Deemed Permit # WI0400492), four quarters of groundwater
monitoring and sampling were completed to evaluate the effectiveness of treatment. Dissolved phase
concentrations since the injection event have been below the GCLs. In addition, groundwater modeling
results presented in the 2012 Comprehensive Site Assessment Report, demonstrate that dissolved phase
COCs would not extend beyond the edge of the site property or to the vicinity of the unnamed tributary.
Therefore, Arcadis respectfully requests that the risk level for this site be reclassified as “Intermediate”
and a No Further Action (NFA) be granted for this Site.

4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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1 INTRODUCTION
Former ExxonMobil (Exxon) facility #99-GRE, located at 101 North Spring Street (formerly addressed at
615 West Friendly Avenue), Greensboro, Guilford County, North Carolina, operated as a service station
from the 1940s until the mid-1970s. Records indicate that a 2,000-gallon used oil UST, an 8,000-gallon
UST, and two 12,000-gallon gasoline USTs were removed from the site, but two 2,000-gallon diesel USTs
may still remain at the site. Site characterization activities were initiated in September 1998 and
confirmed subsurface petroleum impact. During property redevelopment activities, three of the six
monitoring wells were destroyed or abandoned. Three of the original monitoring wells (MW-1R, MW-4
and DW-1) currently remain at the site. Three separate retail petroleum facilities occupied portions of the
property. The subject incident number is situated at the southeast corner property at the intersection of
North Spring Street and West Market Street. A site location map is provided as Figure 1, and site map is
included as Figure 2.
The site is currently a Carolina Bank branch office owned and operated by BACH LLC. The land use
surrounding the site is commercial/industrial. Drinking water is supplied by the City of Greensboro. Public
or private potable water wells have not been identified within 1,000 feet of the site. An unnamed tributary
to North Buffalo Creek is located approximately 160 feet west of the site.
The site is located within the Carolina Slate Belt (early Paleozoic metavolcanics, metasediments and
igneous intrusion) within the Piedmont physiographic province of North Carolina. Specifically, the site is
underlain by late Proterozoic to late Cambrian metamorphosed igneous rock. Saprolite, a layer of
weathered and variably decomposed bedrock, commonly mantles bedrock in this region. Saprolite has
the appearance of compact clay to sandy soil, with original bedrock textures and features preserved.
Soils at the site consist primarily of clay and silt. Depth to groundwater at the site ranges from 9 to 17 feet
below ground surface (bgs).
The NCDEQ Risk Classification for the site is “High” due to the presence of surface water within 500 feet.
Therefore, COC concentrations in groundwater are currently compared to the North Carolina 15A NCAC
2B surface water standards.

4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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2 FREE PRODUCT
Groundwater gauging activities conducted on November 11, 2020 indicated that free product was not
present in any of the groundwater monitoring wells. Free product has not been historically observed at
the site. Current and historical groundwater elevations are summarized in Table 1.

3 GROUNDWATER MONITORING
3.1 Groundwater Gauging
On November 11, 2020, Arcadis personnel gauged groundwater monitoring wells MW-1R, MW-4, MW-6,
MW-7, MW-8, MW-9, MW-10, and DW-1. Monitoring wells MW-9 and MW-10 were gauged but elevations
were not used in contouring because they have not been surveyed. Gauging was conducted with an
oil/water interface probe (IP) prior to purging and sampling to determine depth to water (DTW) and depth
to product (DTP), if present. The IP and attached tape, marked in 0.01-foot increments, were properly
decontaminated before each use with Alconox soap and rinsed with distilled water. The DTW was
measured from the marked survey point on the top of well casing (TOC). All measurements were
recorded to the nearest 0.01-foot increment.
Depths to water ranged from 6.45 feet below top of well casing (btoc) in groundwater monitoring well MW-
10 to 16.25 feet btoc in groundwater monitoring well MW-7. Groundwater flow was observed to be
towards the west which is consistent with the historical groundwater flow direction observed at the site.
Free product was not detected in any of the groundwater monitoring wells during the November 11, 2020
groundwater gauging event. Current and historical groundwater elevations are summarized in Table 1. A
potentiometric surface map for the November 11, 2020 groundwater gauging event is provided as Figure
3.
3.2 Groundwater Sampling
On November 13, 2020, groundwater monitoring wells MW-1R, MW-4, MW-6, MW-7, MW-9, and MW-10
were sampled with low-flow groundwater sampling techniques to collect groundwater parameters and to
minimize turbidity during sample collection. Groundwater parameters were collected utilizing a YSI 556
Multi-Probe Systems (MPS) and flow through cell. Groundwater parameters, including temperature,
dissolved oxygen (DO), pH, conductivity, oxidation reduction potential (ORP), and turbidity were collected
before, during, and after purging. When at least three parameters had stabilized, a groundwater sample
was collected from the tubing.
Groundwater samples collected from the groundwater monitoring wells were placed in laboratory-supplied
containers and shipped on wet ice to Eurofins Laboratories Lancaster Environmental, in Lancaster,
Pennsylvania, for analysis of volatile organic compounds (VOCs) by Standard Method (SM) 6200B.
Groundwater samples submitted for VOC analysis were collected in triplicate 40-milliliter volatile organic
analysis (VOA) glass vials with Teflon-lined septa screw caps preserved with hydrochloric acid (HCl).
Laboratory analytical results and chain-of-custody documentation are included as Appendix A.
4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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3.3 Groundwater Analytical Results
Analytical data from the November 13, 2020 groundwater sampling event indicate that all dissolved phase
concentrations were either non-detect or below the NC GCLs. Analytical results for di-ispropyl ether
concentrations for the November 13, 2020 groundwater sampling event were not reported by the lab, due
to an equipment issue.
Current and historical groundwater analytical results are presented in Table 2. A groundwater analytical
map is presented as Figure 4. The maximum dissolved-phase concentrations of COCs that were
detected during the November 11, 2020 sampling event are listed below.
Maximum Groundwater Concentrations (November 13, 2020)
Chemical of Concern
(COC)
Well ID Concentration
(µg/L)
GCL Standard
(µg/L)
Benzene
MW-4
and
MW-9
3,200 5,000
Toluene MW-9 4,300 260,000
Ethylbenzene MW-4 490 84,500
Xylenes (total) MW-9 4,000 85,500
1,2-Dichloropropane All Non-Detect 600
1,2,4-Trimethylbenzene MW-9 360 28,500
1,3,5-Trimethylbenzene MW-9 190 25,000
Ethylene dibromide All Non-Detect 50

Notes:
GCL = Gross Contaminant Levels
µg/L = micrograms per liter

4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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4 SITE REMEDIATION
4.1 Remediation Events to Date

Summarized in the table below is a chronology of remediation activities performed at the site to date:

Remediation Activities to
Date
Activity
2004 - 2010 Monitored Natural Attenuation
February 2, 2010 8-Hour Aggressive Fluid Vapor Recovery (AFVR) on
MW-1R and MW-4 – 388 gallons petroleum-water and
4.34 pounds TPH recovered.
August 10, 2010 8-Hour AFVR on MW-1R and MW-4 – 574 gallons
petroleum-water and 10.22 pounds TPH recovered.
October 5, 2010 8-Hour AFVR on MW-1R and MW-4 – 997 gallons
petroleum-water and 18.90 pounds TPH recovered.
November 10, 2010 8-Hour AFVR on MW-1R and MW-4 – 866 gallons
petroleum-water and 14.16 pounds TPH recovered.
May 23, 2011 8-Hour AFVR on MW-1R and MW-4 – 1,053 gallons
petroleum-water and 5.64 pounds TPH recovered.
2011 – Present Monitored Natural Attenuation

October 22-30, 2018
Calcium peroxide injection. Approximately 2,100 -
gallons of slurry injected into thirteen (13) temporary
injection points.
November 2018 –
November 2020
Post injection monitoring

4th Quarterly Groundwater Monitoring and Sampling Report – 2020
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5 CONCLUSIONS AND RECOMMENDATIONS
Free product was not detected during the November 11th and 13th, 2020 groundwater monitoring event.
Dissolved-phase concentrations of benzene, toluene, ethylbenzene, total xylenes, 1,2,4-trimethylbenzene,
and 1,3,5-trimethylbenzene were either non-detect or detected in concentrations below the applicable
North Carolina Gross Contamination Levels (GCLs) for Groundwater in all groundwater monitoring wells.
Groundwater sampling since the October 2018 injection event have shown dissolved phase
concentrations have remained below the applicable North Carolina GCLs for groundwater in all monitoring
wells. In addition, groundwater modeling results presented in the 2012 Comprehensive Site Assessment
Report, demonstrate that dissolved phase COCs will not extend beyond the edge of the site property or to
the vicinity of the unnamed tributary. Therefore, Arcadis respectfully requests that the risk level for this
site be reclassified as “Intermediate” and a No Further Action (NFA) status be granted for this Site.

Tables
Table 1Groundwater Elevation Data
Former ExxonMobile Facility #99-GRE
Incident Number 20003
Monitor Well
I.D.
Date
Installed
Date Water Level
Measured
Well Casing Diameter
(inches)
Well Casing Depth
(feet bgs)
Screened Interval
(feet bgs)
Bottom of Well
(feet bgs)
Relative
Top of Casing
Elevation
(feet)
Depth to
Water from Top of
Casing
(feet)
Free
Product
Thickness (feet)
Relative
Groundwater
Elevation (feet)
5/15/2002 1 0-15 15-30 30 100.14 15.42 0.00 84.72
1/12/2004
1/13/2004 12.80 0.00 87.20
10/3/2006 13.65 0.00 86.35
10/25/2007 17.00 0.00 83.0010/13/2008 11.63 0.00 88.37
8/12/2009 12.63 0.00 87.37
2/4/2010 12.54 0.00 87.46
8/9/2010 13.19 0.00 86.81
8/10/2010 13.23 0.00 86.77
11/22/2010 13.35 0.00 86.65
2/26/2011 15.00 0.00 85.00
4/22/2011 14.45 0.00 85.55
5/23/2011 14.27 0.00 85.73
10/25/2011 14.32 0.00 85.68
3/15/2012 14.46 0.00 85.54
8/14/2012 14.91 0.00 784.89
3/14/2013 14.51 0.00 785.29
9/20/2013 13.32 0.00 786.48
3/25/2014 13.22 0.00 786.58
9/24/2014 14.18 0.00 785.62
3/18/2015 14.38 0.00 785.42
9/10/2015 14.35 0.00 785.45
8/11/2016 12.97 0.00 786.839/15/2017 14.16 0.00 785.64
12/14/2018 11.92 0.00 787.88
3/29/2019 11.21 0.00 788.596/10/2019 11.88 0.00 787.929/18/2019 12.02 0.00 787.78
3/24/2020 12.07 0.00 787.73
11/11/2020 7.30 0.00 792.50
5/15/2002 9.75 0.00 83.45
1/13/2004 8.40 0.00 84.80
5/15/2002 14.11 0.00 81.25
1/13/2004 12.20 0.00 83.16
10/16/2003 9.55 0.00 87.421/13/2004 10.55 0.00 86.421/2/2006 12.10 0.00 84.8710/3/2006 11.58 0.00 85.3910/25/2007 15.37 0.00 81.6010/13/2008 11.78 0.00 85.198/12/2009 11.00 0.00 85.972/4/2010 14.63 0.00 82.348/9/2010 12.38 0.00 84.598/10/2010 13.23 0.00 83.7411/22/2010 13.44 0.00 83.532/26/2011 13.90 0.00 83.074/22/2011 13.60 0.00 83.375/23/2011 13.40 0.00 83.5710/25/2011 13.56 0.00 83.413/15/2012 13.59 0.00 83.388/14/2012 13.15 0.00 785.343/14/2013 13.72 0.00 784.779/20/2013 12.57 0.00 785.923/25/2014 12.42 0.00 786.079/24/2014 13.38 0.00 785.113/18/2015 13.57 0.00 784.929/10/2015 13.36 0.00 785.138/11/2016 12.35 0.00 786.149/15/2017 13.46 0.00 785.0312/14/2018 11.91 0.00 786.583/29/2019 10.90 0.00 787.596/10/2019 11.68 0.00 786.819/18/2019 11.85 0.00 786.643/24/2020 11.73 0.00 786.7611/11/2020 11.95 0.00 786.54
10/15/03 4 0-7 7-22 22
MW-1 5/13/02 Abandoned
100.00
MW-1R
93.20MW-2 5/13/02
96.97
1
MW-3 5/13/02 14
Destroyed
1
Destroyed
5-20
95.36
200-5
0-4 4-14
799.80
MW-4 10/15/03 4 0-7 7-22 22
798.49
1/3
Table 1Groundwater Elevation Data
Former ExxonMobile Facility #99-GRE
Incident Number 20003
Monitor Well
I.D.
Date
Installed
Date Water Level
Measured
Well Casing Diameter
(inches)
Well Casing Depth
(feet bgs)
Screened Interval
(feet bgs)
Bottom of Well
(feet bgs)
Relative
Top of Casing
Elevation
(feet)
Depth to
Water from Top of
Casing
(feet)
Free
Product
Thickness (feet)
Relative
Groundwater
Elevation (feet)
10/16/2003 9.11 0.00 89.921/13/2004 12.30 0.00 86.7310/25/2007
8/14/2012 12.45 0.00 784.38
3/14/2013 12.88 0.00 783.95
9/20/2013 12.13 0.00 784.70
3/25/2014 12.21 0.00 784.62
9/24/2014 12.70 0.00 784.13
3/18/2015 12.97 0.00 783.86
9/10/2015 13.09 0.00 783.74
8/11/2016 11.96 0.00 784.87
9/15/2017 12.78 0.00 784.05
12/14/2018 11.39 0.00 785.44
3/29/2019 11.02 0.00 785.81
6/10/2019 11.31 0.00 785.52
9/18/2019 11.45 0.00 785.38
3/24/2020 11.67 0.00 785.16
11/11/2020 11.50 0.00 785.33
8/14/2012 16.99 0.00 783.08
3/14/2013 17.66 0.00 782.41
9/20/2013 17.15 0.00 782.92
3/25/2014 16.62 0.00 783.45
9/24/2014 17.15 0.00 782.92
3/18/2015 17.54 0.00 782.53
9/10/2015 17.81 0.00 782.26
8/11/2016 16.73 0.00 783.34
9/15/2017 17.67 0.00 782.40
12/14/2018 NG ----
3/29/2019 15.55 0.00 784.52
6/10/2019 15.96 0.00 784.11
9/18/2019 16.26 0.00 783.81
3/24/2020 16.12 0.00 783.95
11/11/2020 16.25 0.00 783.82
8/14/2012 16.35 0.00 785.60
3/14/2013 16.79 0.00 785.16
9/20/2013 15.56 0.00 786.39
3/25/2014 15.57 0.00 786.38
9/24/2014 16.41 0.00 785.54
3/18/2015 16.60 0.00 785.35
9/10/2015 16.76 0.00 785.19
8/11/2016 15.41 0.00 786.54
9/15/2017 16.60 0.00 785.35
12/14/2018 15.00 0.00 786.95
3/29/2019 14.19 0.00 787.76
6/10/2019 14.55 0.00 787.40
9/18/2019 14.86 0.00 787.09
3/24/2020 14.74 0.00 787.21
11/11/2020 15.05 0.00 786.90
3/25/2014 12.04 0.00 NS
9/24/2014 12.98 0.00 NS
3/18/2015 13.17 0.00 NS
9/10/2015 13.14 0.00 NS
8/11/2016 11.75 0.00 NS
9/15/2017 12.95 0.00 NS
12/14/2018 11.42 0.00 NS
3/29/2019 10.62 0.00 NS
6/10/2019 11.17 0.00 NS
9/18/2019 11.45 0.00 NS
3/24/2020 11.48 0.00 NS
11/11/2020 11.62 0.00 NS
8/11/2016 5.80 0.00 NS
9/15/2017 6.75 0.00 NS
12/14/2018 5.95 0.00 NS
3/29/2019 9.20 0.00 NS
6/10/2019 6.29 0.00 NS
9/18/2019 7.10 0.00 NS
3/24/2020 6.42 0.00 NS
11/11/2020 6.45 0.00 NS
MW-7 8/5/12 2
20 796.83
12 NS
2
MW-6 8/5/12 2 0-10 10-20
2-12
MW-9 3/9/14 2
22
20
99.030-7 7-22MW-5 10/15/03
MW-10 7/15/16 2 0-2
Abandoned
0-10 10-20
20 801.95
0-10 10-20 20 NS
800.07
MW-8 8/5/12 2 0-10 10-20
2/3
Table 1Groundwater Elevation Data
Former ExxonMobile Facility #99-GRE
Incident Number 20003
Monitor Well
I.D.
Date
Installed
Date Water Level
Measured
Well Casing Diameter
(inches)
Well Casing Depth
(feet bgs)
Screened Interval
(feet bgs)
Bottom of Well
(feet bgs)
Relative
Top of Casing
Elevation
(feet)
Depth to
Water from Top of
Casing
(feet)
Free
Product
Thickness (feet)
Relative
Groundwater
Elevation (feet)
10/16/2003 11.05 0.00 85.981/13/2004 9.90 0.00 87.131/2/2006 12.15 0.00 84.8810/3/2006 14.40 0.00 82.6310/25/2007 15.67 0.00 81.3610/13/2008 11.57 0.00 85.468/12/2009 10.91 0.00 86.128/9/2010 12.35 0.00 84.6811/22/2010 14.15 0.00 82.882/26/2011 14.02 0.00 83.014/22/2011 13.50 0.00 83.535/23/2011 13.26 0.00 83.7710/25/2011 13.22 0.00 83.813/15/2012 13.14 0.00 83.898/14/2012 13.75 0.00 784.743/14/2013 13.58 0.00 784.919/20/2013 12.46 0.00 786.033/25//14 12.35 0.00 786.149/24/2014 13.32 0.00 785.173/18/2015 13.35 0.00 785.149/10/2015 13.18 0.00 785.318/11/2016 12.62 0.00 785.879/15/2017 13.44 0.00 785.0512/14/2018 11.77 0.00 786.723/29/2019 11.30 0.00 787.196/10/2019 11.21 0.00 787.289/18/2019 11.84 0.00 786.653/24/2020 11.75 0.00 786.7411/11/2020 11.98 0.00 786.51
Notes:
bgs = below ground surface
*Monitoring well casing elevations surveyed by Arcadis G&M of North Carolina, Inc. on August 8, 2013
798.49
DW-1 10/16/03 2 0-38 38-43 43
NS = Not Surveyed
-- = Not Available
97.03
NG = Not Gauged
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Table 2
Dissolved-Phase VOC Concentrations in GroundwaterFormer Exxon Mobil Facility #99-GRE
Incident Number 20003
Well or SW ID
Date Collected (mm/dd/yr) Sample ID Incident Phase
1,400 NE NE 51 11 97 670 1,500 320 13,000 NE 140 170 2.2 NE 15 37 15 NE NE NE 330 3 3,200 NE 390 630 0.31
NE NE NE 5,000 260,000 84,500 85,500 20,000 25,000 70,000 NE 50,000 70,000 170 NE 6,000 400 600 6,900 15,000 8,500 6,000 NE 30,000 70,000 28,500 25,000 50
MW-1 5/15/2002 MW-1 Monitoring 28,000 8,500 ND 9,700 12,000 1,500 7,500 ND --930 ----ND ND --78 --------92 ND --------35
10/16/2003 Monitoring 109,000 17,900 4,790 29,800 20,600 1,980 10,100 680 --1,060 ----<250 43.0 --<250 --------91.0 <10 --------168
1/2/2006 Monitoring 90,800 16.1 5.19 22,400 17,200 1,810 11,430 1,900 --1,600 --ND ND ND 0.95 ND ND --------------------
10/3/2006 Monitoring 27,100 ND 3610 21,700 20,800 1,920 15,000 ND --518 --ND ND ND ND --ND ND ------188 ------------
10/25/2007 Monitoring 77,000 12300 4430 18,600 10,500 1,340 4,970 ND --331 --ND ND ND ND --ND 21.9 ------106 ------------
10/13/2008 Monitoring 58,400 12900 4420 7,260 10,600 938 6,750 ND --331 --ND ND ND ND --ND 21.9 ------39.2 ------------
8/12/2009 Monitoring 6,690 830 299 310 805 67.8 667 < 0.500 --4.95 --< 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 ------5.05 ------------
8/9/2010 Monitoring ------3,180 6,920 625 4,000 < 0.500 24.1 51.5 4.96 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 14.1 1.11 2.6 50.2 --43.4 --526 230 --
11/22/2010 Monitoring ------5,520 10,500 1,230 8,620 < 0.500 92.5 106 25.5 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 93 < 0.500 < 0.500 252 --206 < 0.500 2,210 884 48
2/26/2011 NUC0168-01 Monitoring ------14,900 18,900 1,980 9,670 < 0.500 75.8 198 12.7 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 32.5 1.98 7.6 158 --130 80.1 1,440 517 70.1
4/22/2011 NUD3901-01 Monitoring ------10,600 11,900 1,570 8,340 0.67 86.3 167 14.6 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 43.0 2.32 9.44 160 --165 81.0 1,620 644 59.4
10/25/2011 NUJ3226-02 Monitoring ------17,500 21,200 1,600 7,740 < 0.500 57.5 264 5.87 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 11.2 1.07 3.35 114 --83.4 127 847 302 42.4
3/15/2012 Monitoring ------15,000 11,100 1,370 6,340 < 10.0 53.4 217 < 10.0 < 10.0 < 10.0 --< 10.0 < 10.0 < 10.0 < 10.0 13.8 < 10.0 < 10.0 106 --87.6 < 10.0 763 283 26.8
8/14/2012 Monitoring 108,000 21,200 2,740 11+E7+H21 15,400 1,370 7,480 < 0.500 59.7 186 8.43 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 19.8 20.6 1.32 4.43 119 --99.3 < 0.500 874 325 29.6
3/14/2013 Monitoring ------4,950 8,940 1,120 6,200 < 0.500 50.2 40.1 8.95 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 22.4 1.44 6.49 99.1 --98.3 < 0.500 843 352 < 0.500
9/20/2013 Monitoring ------11,600 10,200 1,530 8,050 <10.0 50.7 148 <10.0 <10.0 <10.0 --<10.0 <10.0 <10.0 <10.0 17.3 <10.0 <10.0 <100 --101 <10.0 920 352 15.4
3/25/2014 490-49450-1 Monitoring ------11,000 7,840 1,590 8,620 <10.0 56.6 151 <10.0 <10.0 <10.0 23.1 <10.0 <10.0 120 107 1,060 434 <10.0
9/24/2014 490-62265-1 Monitoring ------13,200 15,900 1,630 9,000 <10.0 51.6 203 <10.0 <10.0 13.9 16.6 <10.0 <10.0 104 96.5 994 389 <10.0
3/18/2015 490-74765-1 Monitoring ------10,700 11,700 1,700 9,180 <10.0 53.1 141 <10.0 <10.0 <10.0 118 91.8 1,020 433 17.3
9/10/2015 490-87114-1 Monitoring ------13,500 16,200 1,670 9,130 <10.0 45.6 189 <10.0 12.6 21.3 <100 86.6 1,060 424 13.8
8/11/2016 490-109742-1 Monitoring ------13,300 9,010 1,830 11,000 <10.0 59.1 162 <10.0 <10.0 23.6 125 109.0 1,110 463 <10.0
9/15/2017 9213047 Monitoring ------14,000 5,100 1,800 9,100 <100 <100 190 <100 <100 <100 --<100 <100 <100 <100 <100 <100 <100 110 --<100 <100 990 360 <100
12/14/2018 9943002 Monitoring ------8,400 9,600 1,500 8,300 <50 61 120 <100 <100 <100 --<100 <100 <50 <50 <50 <100 <100 120 --100 <100 930 590 <50
3/29/2019 Monitoring ------2,800 4,400 640 4,700 <50 <50 100 <100 <100 <100 --<100 <100 <50 <50 <50 <100 <100 51 --51 <100 520 320 <50
6/10/2019 1078827 Monitoring ------1,700 4,200 690 4,500 <50 <50 <50 < 50 < 50 < 50 --< 50 < 50 <50 <50 <50 --< 50 53 --58 < 50 560 300 <50
9/18/2019 1155383 Monitoring ------68 330 53 1,200 <5.0 <5.0 18 <5.0 <5.0 <5.0 --<5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 5 --<5.0 <5.0 190 130 <5.0
3/24/2020 1288375 Monitoring ------110 630 150 1,600 <5.0 9.5 <5.0 <5.0 <5.0 <5.0 --<5.0 <5.0 <5.0 <5.0 <5.0 <5.0 <5.0 16 --14 <5.0 250 140 <5.0
11/11/2020 410-20956-1 Monitoring ------1.8 2.0 <0.50 10 <0.50 <0.50 --<0.50 <0.50 <0.50 --<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 --<0.50 <0.50 0.5 0.84 <0.50
MW-2 5/15/2002 MW-2 Monitoring 570 ND ND ND ND ND ND ND --1,400 ----ND ND ----93 --------ND ND --------ND
MW-3 5/15/2002 MW-3 Monitoring ND ND ND ND ND ND ND ND --ND ----ND ND ----ND --------ND ND --------ND
10/16/2003 Monitoring 10,000 1,620 1,000 1,140 135 299 479 32.0 --1,360 ----<0.5 <10 ----<0.5 --------40.0 <10 --------<0.02
1/2/2006 Monitoring 1.16 0.25 0.165 1,310 47.3 403 297.7 84.4 --17.8 --9.7 ND ND ND --ND 2.09 --------------------
10/3/2006 Monitoring 6,890 ND 518 1,080 136 337 288 ND --1,910 --ND ND ND ND --ND ND ------60.2 ------------
10/25/2007 Monitoring 4,900 847 ND 627 10.2 96.5 42.8 ND --1,200 --ND ND ND ND --ND ND ------31.1 ------------
10/13/2008 Monitoring 7,600 1,110 771 1,210 19.8 357 253 2.76 --981 --ND ND ND ND --ND ND ------85.4 ------------
8/12/2009 Monitoring 25,900 2,940 <2,000 2,250 40.7 457 298 < 0.500 --981 --< 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 ------98.9 ------------
8/9/2010 Monitoring ------8,590 97.1 4,580 1,800 < 0.500 105 730 9.27 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 36.2 2.21 10.5 499 --263 --1,040 147 --
11/22/2010 Monitoring ------3,070 155 192 305 < 0.500 10.8 504 2.62 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 5.38 1.49 1.72 55.1 --14.2 7.49 54 41.9 < 0.500
2/26/2011 NUC0168-02 Monitoring ------5,200 80.3 1,220 763 < 0.500 60.8 541 5.69 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 13.4 2.1 6.58 275 --99.8 2.46 189 43.2 < 0.500
4/22/2011 NUD3901-02 Monitoring ------4,870 87.6 527 193 < 0.500 43.1 1,040 6.55 2.40 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 10.3 2.64 6.30 120 --54 < 0.500 73.7 23.1 < 0.500
10/25/2011 NUJ3226-01 Monitoring ------4,560 63.6 477 205 1.14 35.2 1,320 3.04 < 0.500 < 0.500 --< 0.500 0.550 <0.500 < 0.500 6.71 1.84 4.50 138 --45.1 < 0.500 78.4 14.6 < 0.500
3/15/2012 Monitoring ------4,390 75.8 399 172 < 2.50 36.6 1,280 4.35 < 2.50 < 2.50 --< 2.50 < 2.50 < 2.50 < 2.50 6.45 < 2.50 5.40 112 --44.0 < 2.50 63.1 12.7 < 2.50
8/14/2012 Monitoring 29,200 2,540 < 1,000 4,130 75.2 560 238 < 0.500 51.0 1,470 4.76 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 10.8 2.60 7.08 182 --66.7 1.47 73.9 14.6 < 0.500
3/14/2013 Monitoring ------3,260 73.5 336 114 <0.500 32.5 1,220 5.28 <0.500 <0.500 --<0.500 <0.500 <0.500 <0.500 8.13 2.5 5.97 93.9 --41.7 <0.500 28.6 10.6 <0.500
9/20/2013 Monitoring 4,680 76.0 361 101 <2.5 34.1 1,540 5.61 <2.5 <2.5 --<2.5 <2.5 <2.5 <2.5 7.25 <2.5 5.41 82.4 --39.4 <2.5 8.62 10.0 <2.50
3/25/2014 490-49450-2 Monitoring ------1,970 42.5 265 73.7 <2.50 22.9 767 3.29 <2.50 <2.50 6.79 <2.50 3.86 64.4 35.2 13.8 5.01 <2.50
9/24/2014 490-62265-2 Monitoring ------5,110 81.8 374 106 <2.50 36.8 1,740 4.71 <2.50 <2.50 7.46 <2.50 5.42 103 44.7 7.54 7.26 <2.50
3/18/2015 490-74765-2 Monitoring ------2,310 41.6 239 68.5 <2.50 22.3 1,230 <2.50 <2.50 <2.50 66.8 28.9 6.71 4.33 <2.50
9/10/2015 490-87114-2 Monitoring ------4,070 59.5 378 119 <2.50 33.3 1,660 <2.50 <2.50 6.47 81.4 43.9 10.5 5.98 <2.50
8/11/2016 490-109742-2 Monitoring ------4,140 57.2 532 144 <2.50 38.8 1,460 <2.50 <2.50 11.8 141 72.3 13.1 5.87 <2.50
9/15/2017 9213048 Monitoring ------1,400 26.0 130 48 <25 <25 1,100 <25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 36 --<25 <25 <25 <25 <25
12/14/2018 9943003 Monitoring ------440 9.7 220 43 <5.0 15 310 <25 <25 <25 --<25 <25 <5.0 <5.0 <5.0 <25 <25 31 --35 <25 22 5.70 <5.0
3/29/2019 Monitoring ------660 19.0 210 48 <5.0 13 570 <25 <25 <25 --<25 <25 <5.0 <5.0 <5.0 <25 <25 43 --23 <25 9.5 <5.0 <5.0
6/10/2019 1078828 Monitoring ------3,100 57 380 130 <50 <50 1,200 < 50 < 50 < 50 --< 50 < 50 <50 <50 <50 --< 50 93 --<50 < 50 <50 <50 <50
9/18/2019 1155384 Monitoring ------4,000 62 470 140 <25 33 1,400 <25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 99 --50 <25 <25 <25 <25
3/24/2020 1288378 Monitoring ------2,200 43.0 740 130 <25 37 720 <25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 120 --89 <25 28 <25 <25
11/13/2020 410-20956-2 Monitoring ------3,200 48 490 82 <25 <25 --<25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 75 --46 <25 <25 <25 <25
10/16/2003 Monitoring 169 <100 <100 24.6 31.5 3.4 17.3 <1 --7.7 ----<0.5 <10 ----<0.5 --------<10 <10 --------0.18
1/2/2006 Monitoring ND ND ND ND ND ND ND ND --9.3 --ND ND ND ND --5.78 ND --------------------
10/3/2006 Monitoring ND ND ND ND ND ND ND ND --5.5 --0.98 ND ND ND --3.2 ND ------ND ------------
10/25/2007 Monitoring
MW-1R
MW-4 BromomethaneMW-4
MW-1R
MW-1R
MW-4 BenzeneEthylbenzeneMTBEXylenesp-IsopropyltolueneChloroformn-NitrosodimethylamineBis(2-ethylhexyl)phthalaStyrene1,2-DichloroethaneWell Abandoned
MW-5 Diisopropyl EtherContaminant of Concern →
NC 2B Surface Water Standards tert- ButylbenzeneEDB1,2,4-Trimethylbenzenen-ButylbenzeneAnalytical Methods →C9-C10 AliphaticsIsopropylbenzeneChlorobenzene1,3,5-Trimethylbenzenen-PropylbenzeneNaphthalenesec-ButylbenzeneToluene1,2-DichloropropaneC9-C12 Aliphatics(Uandjusted)Gross Contaminant Levels (GCL)
MW-5 1,1-DichloroethaneMADEP VPH (historical data used VPH/EPH)C5-C8 Aliphatics(Unadjusted)1/2
Table 2
Dissolved-Phase VOC Concentrations in GroundwaterFormer Exxon Mobil Facility #99-GRE
Incident Number 20003
Well or SW ID
Date Collected (mm/dd/yr) Sample ID Incident Phase
1,400 NE NE 51 11 97 670 1,500 320 13,000 NE 140 170 2.2 NE 15 37 15 NE NE NE 330 3 3,200 NE 390 630 0.31BromomethaneBenzeneEthylbenzeneMTBEXylenesp-IsopropyltolueneChloroformn-NitrosodimethylamineBis(2-ethylhexyl)phthalaStyrene1,2-DichloroethaneDiisopropyl EtherContaminant of Concern →
NC 2B Surface Water Standards tert- ButylbenzeneEDB1,2,4-Trimethylbenzenen-ButylbenzeneAnalytical Methods →C9-C10 AliphaticsIsopropylbenzeneChlorobenzene1,3,5-Trimethylbenzenen-PropylbenzeneNaphthalenesec-ButylbenzeneToluene1,2-DichloropropaneC9-C12 Aliphatics(Uandjusted) 1,1-DichloroethaneMADEP VPH (historical data used VPH/EPH)C5-C8 Aliphatics(Unadjusted)8/14/2012 Monitoring 1,700 < 100 < 100 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 1.00 795 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 13.8 < 0.500 < 0.500 < 0.500 < 0.500 < 5.00 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500
8/11/2016 Monitoring ------<0.500 <0.500 <0.500 <1.00 <0.500 <1.00 455 5.08 <0.500 <0.500 <5.00 <0.500 <0.500 <0.500 <0.500
9/15/2017 9213049 Monitoring ------<0.500 <0.500 <0.500 <0.500 <0.500 <0.500 460 <0.500 <0.500 <0.500 --<0.500 <0.500 4.6 <0.500 <0.500 <0.500 <0.500 <0.500 --<0.500 <0.500 <0.500 <0.500 <0.500
12/14/2018 9943004 Monitoring ------<5.0 <5.0 <5.0 <5.0 <5.0 <5.0 400 <0.500 <0.500 <0.500 --<0.500 <0.500 <5.0 <5.0 <5.0 <0.500 <0.500 <5.0 --<5.0 <0.500 <5.0 <5.0 <5.0
3/29/2019 Monitoring ------<5.0 <5.0 <5.0 <5.0 <5.0 <5.0 360 <0.500 <0.500 <0.500 --<0.500 <0.500 <5.0 <5.0 <5.0 <0.500 <0.500 <5.0 --<5.0 <0.500 <5.0 <5.0 <5.0
6/10/2019 1078829 Monitoring ------<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 310 < 2.5 < 2.5 < 2.5 --< 2.5 < 2.5 3.5 <2.5 <2.5 --< 2.5 <2.5 --<2.5 < 2.5 <2.5 <2.5 <2.5
9/18/2019 1155385 Monitoring ------<2.5 <2.5 <2.5 <5.0 <2.5 <2.5 320 <2.5 <2.5 <2.5 --<2.5 <2.5 5 <2.5 <2.5 <2.5 <2.5 <2.5 --<2.5 <2.5 <2.5 <2.5 <2.5
3/24/2020 1288377 Monitoring ------<2.5 <2.5 <2.5 <5.0 <2.5 <2.5 290 <2.5 <2.5 <2.5 --<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 --<2.5 <2.5 <2.5 <2.5 <2.5
11/13/2020 410-20956-3 Monitoring ------<2.5 <2.5 <2.5 <5.0 <2.5 <2.5 --<2.5 <2.5 <2.5 --<2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 --<2.5 <2.5 <2.5 <2.5 <2.5
8/14/2012 MW-7 Monitoring 196 < 100 < 100 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 1.00 105 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 5.00 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500
3/25/2020 1288380 Monitoring ------<1.0 <1.0 <1.0 <2.0 <1.0 <1.0 30 <1.0 <1.0 <1.0 --<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 --<1.0 <1.0 <1.0 <1.0 <1.0
11/13/2020 410-20956-4 Monitoring ------<1.0 <1.0 <1.0 <2.0 <1.0 <1.0 --<1.0 <1.0 <1.0 --<1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 <1.0 --<1.0 <1.0 <1.0 <1.0 <1.0
MW-8 8/14/2012 MW-8 Monitoring < 100 < 100 < 100 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 1.00 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 5.00 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500
3/25/2014 490-49450-3 Monitoring ------24,200 24,300 1,810 11,700 <5.00 64.6 67.2 8.85 <5.00 19.9 26.5 <5.00 8.37 241 142 1,230 445 68.1
9/24/2014 490-62265-3 Monitoring ------18,400 26,900 1,790 11,400 <10.0 56.1 128 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 <10.0 16.6 19.5 <10.0 <10.0 212 118 1,100 381 51.4
3/18/2015 490-74765-3 Monitoring ------20,500 23,600 1,860 12,200 <10.0 66.8 118 <10.0 24.1 <10.0 248 141 1,240 474 53.8
9/10/2015 490-87114 Monitoring ------21,200 26,700 1,760 12,100 <10.0 46.9 119 <10.0 <10.0 22.3 153 99.8 1,130 417 49.8
8/11/2016 490-109732-4 Monitoring ------20,900 24,700 1,730 12,900 <10.0 56.4 93.1 <10.0 17.5 24.8 211 115 1,040 395 <10.0
9/15/2017 9213050 Monitoring ------6,100 11,000 1,100 7,100 <50.0 <50.0 <50.0 <50.0 <50.0 <50.0 --<50.0 <50.0 <50.0 <50.0 <50.0 <50.0 <50.0 140 <50.0 75 210 800 300 <50.0
12/14/2018 9943005 Monitoring ------11,000 16,000 1,000 9,300 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50 <50.0 <50.0 190 <50.0 58 210 970 370 <50
3/29/2019 Monitoring ------460 410 33 4,800 <25 <25 49 <50 <50 <50 <50 <50 <50 <25 <25 <25 <50.0 <50.0 52 <50.0 <25 210 500 260 <25
6/10/2019 1078830 Monitoring ------63 420 64 1,800 <5.0 <5.0 <5.0 < 5.0 < 5.0 < 5.0 --< 5.0 < 5.0 <5.0 <5.0 <5.0 --< 5.0 28 --6.5 < 5.0 280 180 <5.0
6/10/2019 1078832*Monitoring ------64 430 65 1,800 <5.0 <5.0 <5.0 < 5.0 < 5.0 < 5.0 --< 5.0 < 5.0 <5.0 <5.0 <5.0 --< 5.0 27 --6.6 < 5.0 250 170 <5.0
9/18/2019 1155386 Monitoring ------830 2,600 200 3,700 <25 <25 25 <25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 54 --<25 <25 320 160 <25
9/18/2019 1155388*Monitoring ------850 2,600 210 3,600 <25 <25 <25 <25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 56 --<25 <25 330 170 <25
3/24/2020 1288376 Monitoring ------3,200 5,700 470 5,500 <25 <25 38 <25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 76 --<25 <25 520 270 <25
11/13/2020 410-20956-5 Monitoring ------3,200 4,300 430 4,000 <25 <25 --<25 <25 <25 --<25 <25 <25 <25 <25 <25 <25 57 --<25 <25 360 190 <25
8/11/2016 490-109742-5 Monitoring ------<0.500 <0.500 <0.500 <1.00 <0.500 <1.00 <0.500 <0.500 <0.500 <0.500 <5.00 <0.500 <0.500 <0.500 <0.500
9/15/2017 9213051 Monitoring ------<0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <5.00 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500
12/14/2018 9943006 Monitoring ------<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.12 <0.13 <0.14 <0.15 <0.16 <0.17 <0.5 <0.5 <0.5 <0.21 <0.22 <0.5 <0.24 <0.5 <0.26 <0.5 <0.5 <0.5
3/29/2019 Monitoring ------<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.12 <0.13 <0.14 <0.15 <0.16 <0.17 <0.5 <0.5 <0.5 <0.21 <0.22 <0.5 <0.24 <0.5 <0.26 <0.5 <0.5 <0.5
6/10/2019 1078831 Monitoring ------<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 < 0.5 < 0.5 < 0.5 --< 0.5 < 0.5 <0.5 <0.5 <0.5 --< 0.5 <0.5 --<0.5 < 0.5 <0.5 <0.5 <0.5
9/18/2019 1155387 Monitoring ------<0.5 <0.5 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 --<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 --<0.5 <0.5 <0.5 <0.5 <0.5
3/25/2020 1288379 Monitoring ------<0.5 <0.5 <0.5 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 --<0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 --<0.5 <0.5 <0.5 <0.5 <0.5
11/13/2020 410-20956-6 Monitoring ------<0.50 <0.50 <0.50 <1.0 <0.50 <0.50 --<0.50 <0.50 <0.50 --<0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 <0.50 --<0.50 <0.50 <0.50 <0.50 <0.50
10/16/2003 Monitoring 1,370 157 <100 64.1 115 14.0 66.3 2.5 --118 ----2.40 <10 ----<0.5 --------<10 25.0 --------0.48
1/2/2006 Monitoring 292 ND ND ND ND ND 3.21 ND --46.7 --ND ND ND ND --ND ND --------------------
10/3/2006 Monitoring 307 285 ND 19.5 93.8 16 94.1 ND --33 --ND ND ND ND --2.45 ND ------7.79 ------------
10/25/2007 Monitoring ND ND ND 3.34 ND 5.25 4.42 ND --11.5 --ND ND ND ND --1.59 ND ------ND ------------
8/9/2010 Monitoring ------< 0.500 < 0.500 < 0.500 < 1.00 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500 ND<5.00 --< 0.500 --< 0.500 < 0.500 --
11/22/2010 Monitoring ------< 0.500 < 0.500 < 0.500 < 1.00 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500 ND<5.00 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500
2/26/2011 NUC0168-03 Monitoring ------< 0.500 < 0.500 < 0.500 < 1.00 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 5.00 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500
08/14/12 DW-1 Monitoring 130 < 100 < 100 < 0.500 < 0.500 < 0.500 < 0.500 < 0.500 < 1.00 14.2 < 0.500 < 0.500 < 0.500 --< 0.500 --1.09 < 0.500 < 0.500 < 0.500 < 0.500 < 5.00 --< 0.500 < 0.500 < 0.500 < 0.500 < 0.500
Notes:
Results reported in µg/L (micrograms per liter)
--: Not Analyzed for specific compound
< #: Non-detect above laboratory reporting limit
ND: Non-detect above laboratory reporting limit where laboratory reporting limit not available from historical data
Bold: Exceeds NC 2B Surface Water Standards
Shaded: Exceeds Gross Contaminant Levels (GCL)
MTBE: Methyl tert-Butyl Ether
IPE: Diisopropyl Ether
EDB: 1, 2 Dibromoethane
*: Second sample for MW-9 collected as DUP-01
MW-10
MW-6
MW-6
MW-7
MW-9
DW-1
DW-1
2/2
Figures
PROJECT
LOCATION
1 MILE RADIUS
0.5 MILE RADIUS
REFERENCE: BASE MAP USGS 7.5. MIN. TOPO. QUAD., GREENSBORO, NC, 1951, REVISED 1994. CONTOUR INTERVAL = 10 FEET
Approximate Scale: 1 in. = 2,000 ft.
0 2,000'4,000'
NORTH CAROLINA
SITE LOCATION MAP
FORMER EXXONMOBIL FACILITY #99-GRE101 N SPRING STREET
GREENSBORO, NORTH CAROLINA4th QUARTERLY GROUNDWATER MONITORINGAND SAMPLING REPORT – 2020
1CITY: SYRACUSE, NY DIV/GROUP: EBC-IM/DV DB/LD: L.POSENAUER PIC: T.HOPPER PM/TM: J. FARLEY TR: P. GOODELL LYR: ON=*;OFF=REFC:\Users\sh5822\BIM 360\Arcadis\ANA - EXXON MOBIL\Project Files\99GRE - 615 WEST FRIENDLY AVENUE, GREENSBORO, NC\2020\B0085851.0048\01-DWG\4Q2020-FIG001-SLM.dwg LAYOUT: 1 SAVED: 1/7/2021 2:00 PM ACADVER: 23.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE:PLTFULL.CTB PLOTTED: 1/7/2021 2:01 PM BY: S, HARISHAREA
LOCATION
FIGURE
MW-6MW-2
MW-7
DW-1MW-4
MW-1R
MW-8
MW-5
MW-3
MW-9
MW-10
F R I E N D L Y A V E N U E
W E S T M A R K E T S T R E

E

T N O R T H S P R I N G S T R E E TN O R T H C E D A RS T R E E TN/F
BACH LLC
PIN # 7864-46-2525
DB 6652 PG 2099
N/F
BFS RETAIL & COMMERCIAL
OPERATIONS LLC
PIN # 7864-46-5504
DB 5529 PG 1060
N/F
YOUNG MEN'S CHRISTIAN
ASSOC. OF GREENSBORO INC
PIN # 7864-46-5137
DB 4994 PG 434
N/F
GREENSBORO ARBOR PROP LLC
PIN # 7864-46-2270
DB 6549 PG 1097
N/F
MICHAEL T. WHALEN &
DEBORAH E. WHALEN
PIN # 7864-46-1271
DB 5999 PG 2167
N/F
GUILFORD COUNTY
BOARD OF EDUCATION
PIN # 7864-46-0282
DB 3841 PG 1518
N/F
GUILFORD COUNTY
BOARD OF EDUCATION
PIN # 7864-35-9919
DB 2804 PG 879
N/F
CONTEMPORARY
LANDSCAPES INC
PIN # 7864-36-9497
DB & PG N/A VIA GIS
N/F
SPRING STREET HOLDINGS LLC
PIN # 7864-36-9584
DB 6708 PG 1593
N/F
CITY OF GREENSBORO
BOARD OF ALCOHOL CONTROL
PIN # 7864-36-9634
DB 3729 PG 1609
N/F
BASIL AGAPION &
SOPHIA S. AGAPION
PIN # 7864-36-9870
DB 7093 PG 996
N/F
RONALD W. FINN &
JEANETTE R. FINN TRUST
PIN # 7864-46-1847
DB 6941 PG 1555
N/F
VM LLC
PIN # 7864-46-2846
DB 4737 PG 1800
N/F
RANDEL W. ROBERTS &
SHIRLEY M. ROBERTS
PIN # 7864-46-3836
DB 2798 PG 252
N/F
PARCEL INFORMATION N/A VIA GIS
PIN # N/A
DB & PG N/A
INLET
INLETS
INLETS INLETS
S
INLETINLET
INLETWWD
D
INLETD
D
INLETD
INLETD
D
D
D
INLET
INLETD
D
D
INLET
S
D
W
SITE MAP
IMAGES:XREFS: X-TITLE X-BASEFIGURE
FORMER EXXONMOBIL FACILITY #99-GRE101 N SPRING STREET
GREENSBORO, NORTH CAROLINA4th QUARTERLY GROUNDWATER MONITORINGAND SAMPLING REPORT – 2020
CITY: SYRACUSE, NY DIV/GROUP: EBC-IM/DV DB/LD: L.POSENAUER PIC: T.HOPPER PM/TM: J. FARLEY TR: P. GOODELL LYR: ON=*;OFF=REFC:\Users\sh5822\BIM 360\Arcadis\ANA - EXXON MOBIL\Project Files\99GRE - 615 WEST FRIENDLY AVENUE, GREENSBORO, NC\2020\B0085851.0048\01-DWG\4Q2020-FIG02-SITE MAP.dwg LAYOUT: 2 SAVED: 1/7/2021 2:15 PM ACADVER: 23.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ----PLOTTED: 1/7/2021 2:15 PM BY: S, HARISH2
F R I E N D L Y A V E N U E
W E S T M A R K E T S T R E

E

T N O R T H S P R I N G S T R E E TN O R T H C E D A RS T R E E TN/F
BACH LLC
PIN # 7864-46-2525
DB 6652 PG 2099
N/F
BFS RETAIL & COMMERCIAL
OPERATIONS LLC
PIN # 7864-46-5504
DB 5529 PG 1060
N/F
YOUNG MEN'S CHRISTIAN
ASSOC. OF GREENSBORO INC
PIN # 7864-46-5137
DB 4994 PG 434
N/F
GREENSBORO ARBOR PROP LLC
PIN # 7864-46-2270
DB 6549 PG 1097
N/F
MICHAEL T. WHALEN &
DEBORAH E. WHALEN
PIN # 7864-46-1271
DB 5999 PG 2167
N/F
GUILFORD COUNTY
BOARD OF EDUCATION
PIN # 7864-46-0282
DB 3841 PG 1518
N/F
GUILFORD COUNTY
BOARD OF EDUCATION
PIN # 7864-35-9919
DB 2804 PG 879
N/F
CONTEMPORARY
LANDSCAPES INC
PIN # 7864-36-9497
DB & PG N/A VIA GIS
N/F
SPRING STREET HOLDINGS LLC
PIN # 7864-36-9584
DB 6708 PG 1593
N/F
CITY OF GREENSBORO
BOARD OF ALCOHOL CONTROL
PIN # 7864-36-9634
DB 3729 PG 1609
N/F
BASIL AGAPION &
SOPHIA S. AGAPION
PIN # 7864-36-9870
DB 7093 PG 996
N/F
RONALD W. FINN &
JEANETTE R. FINN TRUST
PIN # 7864-46-1847
DB 6941 PG 1555
N/F
VM LLC
PIN # 7864-46-2846
DB 4737 PG 1800
N/F
RANDEL W. ROBERTS &
SHIRLEY M. ROBERTS
PIN # 7864-46-3836
DB 2798 PG 252
N/F
PARCEL INFORMATION N/A VIA GIS
PIN # N/A
DB & PG N/A
S
S
S
S
WWMW-2
MW-7(783.82)
MW-1R
(792.50)
MW-8(786.90)MW-5
MW-3
MW-10(NS)
MW-6(785.33)
DW-1
(786.51)
MW-4(786.54)
MW-9(NS)786.00788.00784.00788.0
0
786.00784.00790.
0
0
792.0
0
792.00790.00S
D
W
POTENTIOMETRIC SURFACE MAP
NOVEMBER 11, 2020
787.00
IMAGES:XREFS: X-TITLE X-BASEFIGURE
FORMER EXXONMOBIL FACILITY #99-GRE101 N SPRING STREET
GREENSBORO, NORTH CAROLINA4th QUARTERLY GROUNDWATER MONITORINGAND SAMPLING REPORT – 2020
CITY: SYRACUSE, NY DIV/GROUP: EBC-IM/DV DB/LD: L.POSENAUER PIC: T.HOPPER PM/TM: J. FARLEY TR: P. GOODELL LYR: ON=*;OFF=REFC:\Users\sh5822\BIM 360\Arcadis\ANA - EXXON MOBIL\Project Files\99GRE - 615 WEST FRIENDLY AVENUE, GREENSBORO, NC\2020\B0085851.0048\01-DWG\4Q2020-FIG03-PSM.dwg LAYOUT: 3 SAVED: 1/8/2021 10:51 AM ACADVER: 23.1S (LMS TECH) PAGESETUP: ---- PLOTSTYLETABLE: ----PLOTTED: 1/8/2021 10:51 AM BY: S, HARISH3
(NS)
(792.50)
F R I E N D L Y A V E N U E
W E S T M A R K E T S T R E

E

T N O R T H S P R I N G S T R E E TN O R T H C E D A RS T R E E TN/F
BACH LLC
PIN # 7864-46-2525
DB 6652 PG 2099
N/F
BFS RETAIL & COMMERCIAL
OPERATIONS LLC
PIN # 7864-46-5504
DB 5529 PG 1060
N/F
YOUNG MEN'S CHRISTIAN
ASSOC. OF GREENSBORO INC
PIN # 7864-46-5137
DB 4994 PG 434
N/F
GREENSBORO ARBOR PROP LLC
PIN # 7864-46-2270
DB 6549 PG 1097
N/F
MICHAEL T. WHALEN &
DEBORAH E. WHALEN
PIN # 7864-46-1271
DB 5999 PG 2167
N/F
GUILFORD COUNTY
BOARD OF EDUCATION
PIN # 7864-46-0282
DB 3841 PG 1518
N/F
GUILFORD COUNTY
BOARD OF EDUCATION
PIN # 7864-35-9919
DB 2804 PG 879
N/F
CONTEMPORARY
LANDSCAPES INC
PIN # 7864-36-9497
DB & PG N/A VIA GIS
N/F
SPRING STREET HOLDINGS LLC
PIN # 7864-36-9584
DB 6708 PG 1593
N/F
CITY OF GREENSBORO
BOARD OF ALCOHOL CONTROL
PIN # 7864-36-9634
DB 3729 PG 1609
N/F
BASIL AGAPION &
SOPHIA S. AGAPION
PIN # 7864-36-9870
DB 7093 PG 996
N/F
RONALD W. FINN &
JEANETTE R. FINN TRUST
PIN # 7864-46-1847
DB 6941 PG 1555
N/F
VM LLC
PIN # 7864-46-2846
DB 4737 PG 1800
N/F
RANDEL W. ROBERTS &
SHIRLEY M. ROBERTS
PIN # 7864-46-3836
DB 2798 PG 252
N/F
PARCEL INFORMATION N/A VIA GIS
PIN # N/A
DB & PG N/A
S
S
S
S
WWMW-6
MW-2
MW-7
DW-1
MW-4
MW-1R
MW-8
MW-5
MW-3
MW-9
MW-10
S
D
W
DISSOLVED-PHASE COC
CONCENTRATIONS IN GROUNDWATER
BOLD
WELL ID
Date sampled GCL
B BENZENE 5,000
T TOLUENE 260,000
E ETHYLBENZENE 84,500
X TOTAL XYLENES 85,500
1,2-DCP 1,2-Dichloropropane 600
1,2,4-TMB 1,2,4-TRIMETHYLBENZENE 28,500
1,3,5-TMB 1,3,5-TRIMETHYLBENZENE 25,500
EDB ETHYLENE DIBROMIDE 50
2B SURFACE WATER
51
11
97
670
15
390
630
0.31
IMAGES: usace-t.pngXREFS: X-TITLE X-BASE XREF-WVA-BASEMAPFIGURE
FORMER EXXONMOBIL FACILITY #99-GRE101 N SPRING STREET
GREENSBORO, NORTH CAROLINA4th QUARTERLY GROUNDWATER MONITORINGAND SAMPLING REPORT – 2020
CITY: SYRACUSE, NY DIV/GROUP: EBC-IM/DV DB/LD: L.POSENAUER PIC: T.HOPPER PM/TM: J. FARLEY TR: P. GOODELL LYR: ON=*;OFF=REFC:\Users\sh5822\BIM 360\Arcadis\ANA - EXXON MOBIL\Project Files\99GRE - 615 WEST FRIENDLY AVENUE, GREENSBORO, NC\2020\B0085851.0048\01-DWG\4Q2020-FIG04-DPC-DATA BOX.dwg LAYOUT: 4 SAVED: 1/8/2021 12:37 PM ACADVER: 23.1S (LMS TECH) PAGESETUP: ----PLOTSTYLETABLE: ---- PLOTTED: 1/8/2021 12:37 PM BY: S, HARISHMW-1R
Date 10-06-2019 18-09-2019 24-03-2020 11-11-2020
B 1,700 68 110 1.8
T 4,200 330 630 2.0
E 690 53 150 <0.50
X 4,500 1,200 1,600 10
1,2-DCP <50 <5.0 <5.0 <0.50
1,2,4-TMB 560 190 250 0.5
1,3,5-TMB 300 130 140 0.84
EDB <50 <5.0 <5.0 <0.50
MW-4
Date 10-06-2019 18-09-2019 24-03-2020 13-11-2020
B 3,100 4,000 2,200 3,200
T 57 62 43.0 48
E 380 470 740 490
X 130 140 130 82
1,2-DCP <50 <25 <25 <25
1,2,4-TMB <50 <25 28 <25
1,3,5-TMB <50 <25 <25 <25
EDB <50 <25 <25 <25
MW-6
Date 10-06-2019 18-09-2019 24-03-2020 13-11-2020
B <2.5 <2.5 <2.5 <2.5
T <2.5 <2.5 <2.5 <2.5
E <2.5 <2.5 <2.5 <2.5
X <2.5 <5.0 <5.0 <5.0
1,2-DCP <2.5 <2.5 <2.5 <2.5
1,2,4-TMB <2.5 <2.5 <2.5 <2.5
1,3,5-TMB <2.5 <2.5 <2.5 <2.5
EDB <2.5 <2.5 <2.5 <2.5
MW-9
Date 10-06-2019 18-09-2019 24-03-2020 13-11-2020
B 63 830 3,200 3,200
T 420 2,600 5,700 4,300
E 64 200 470 430
X 1,800 3,700 5,500 4,000
1,2-DCP <5.0 <25 <25 <25
1,2,4-TMB 280 320 520 360
1,3,5-TMB 180 160 270 190
EDB <5.0 <25 <25 <25
MW-10
Date 10-06-2019 18-09-2019 25-03-2020 13-11-2020
B <0.5 <0.5 <0.5 <0.50
T <0.5 <0.5 <0.5 <0.50
E <0.5 <0.5 <0.5 <0.50
X <0.5 <1.0 <1.0 <1.0
1,2-DCP <0.5 <0.5 <0.5 <0.50
1,2,4-TMB <0.5 <0.5 <0.5 <0.50
1,3,5-TMB <0.5 <0.5 <0.5 <0.50
EDB <0.5 <0.5 <0.5 <0.50
MW-7
Date 25-03-2020 13-11-2020
B <1.0 <1.0
T <1.0 <1.0
E <1.0 <1.0
X <2.0 <2.0
1,2-DCP <1.0 <1.0
1,2,4-TMB <1.0 <1.0
1,3,5-TMB <1.0 <1.0
EDB <1.0 <1.0
4

APPENDIX A

Laboratory Analytical Report and Chain-of-Custody – November 30,
2020

ANALYTICAL REPORT
Eurofins Lancaster Laboratories Env, LLC
2425 New Holland Pike
Lancaster, PA 17601
Tel: [phone]
Laboratory Job ID: 410-20956-1
Client Project/Site: 99-GRE - Greensboro, NC
For:
ARCADIS U.S., Inc.
111-D Sanders Lane
Bluefield, Virginia 24605
Attn: Theresa McGuire
Authorized for release by:
11/30/2020 5:55:00 PM
Megan Moeller, Client Services Group Leader
[phone]
[e-mail]
The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for
accredited parameters, exceptions are noted in this report. This report may not be reproduced
except in full, and with written approval from the laboratory. For questions please contact the
Project Manager at the e-mail address or telephone number listed on this page.
This report has been electronically signed and authorized by the signatory. Electronic signature is
intended to be the legally binding equivalent of a traditionally handwritten signature.
Results relate only to the items tested and the sample(s) as received by the laboratory.
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Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD,
and ISO 17025) unless otherwise noted under the individual analysis. Data qualifiers are applied to note
exceptions. Noncompliant quality control (QC) is further explained in narrative comments.
· QC results that exceed the upper limits and are associated with non-detect samples are qualified but further
narration is not required since the bias is high and does not change a non-detect result. Further narration is
also not required with QC blank detection when the associated sample concentration is non-detect or more
than ten times the level in the blank.
· Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these
situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD is performed, unless otherwise
specified in the method.
· Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are
confirmed unless attributed to a dilution or otherwise noted in the narrative.
Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency
requirements/permits.
Measurement uncertainty values, as applicable, are available upon request.
Test results relate only to the sample tested. Clients should be aware that a critical step in a chemical or
microbiological analysis is the collection of the sample. Unless the sample analyzed is truly representative of
the bulk of material involved, the test results will be meaningless. If you have questions regarding the proper
techniques of collecting samples, please contact us. We cannot be held responsible for sample integrity,
however, unless sampling has been performed by a member of our staff. Times are local to the area of activity.
Parameters listed in the 40 CFR Part 136 Table II as "analyze immediately" and tested in the laboratory are not
performed within 15 minutes of collection.
This report shall not be reproduced except in full, without the written approval of the laboratory.
WARRANTY AND LIMITS OF LIABILITY - In accepting analytical work, we warrant the accuracy of test results
for the sample as submitted. The foregoing express warranty is exclusive and is given in lieu of all other
warranties, expressed or implied. We disclaim any other warranties, expressed or implied, including a warranty
of fitness for particular purpose and warranty of merchantability. In no event shall Eurofins Lancaster
Laboratories Environmental, LLC be liable for indirect, special, consequential, or incidental damages including,
but not limited to, damages for loss of profit or goodwill regardless of (A) the negligence (either sole or
concurrent) of Eurofins Lancaster Laboratories Environmental and (B) whether Eurofins Lancaster Laboratories
Environmental has been informed of the possibility of such damages. We accept no legal responsibility for the
purposes for which the client uses the test results. No purchase order or other order for work shall be accepted
by Eurofins Lancaster Laboratories Environmental which includes any conditions that vary from the Standard
Terms and Conditions, and Eurofins Lancaster Laboratories Environmental hereby objects to any conflicting
terms contained in any acceptance or order submitted by client.
Megan Moeller
Client Services Group Leader
11/30/2020 5:55:00 PM
Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Laboratory Job ID: 410-20956-1
Page 2 of 37 11/30/2020
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Table of Contents
Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Laboratory Job ID: 410-20956-1
Page 3 of 37 Eurofins Lancaster Laboratories Env, LLC11/30/2020
Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4
Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5
Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7
Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23
QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30
Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31
Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33
Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34
Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35
Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36
Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37
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Definitions/Glossary
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Qualifiers
GC/MS VOA
Qualifier Description
*3 ISTD response or retention time outside acceptable limits.
Qualifier
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
1C Result is from the primary column on a dual-column method.
2C Result is from the confirmation column on a dual-column method.
CFL Contains Free Liquid
CFU Colony Forming Unit
CNF Contains No Free Liquid
DER Duplicate Error Ratio (normalized absolute difference)
Dil Fac Dilution Factor
DL Detection Limit (DoD/DOE)
DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample
DLC Decision Level Concentration (Radiochemistry)
EDL Estimated Detection Limit (Dioxin)
LOD Limit of Detection (DoD/DOE)
LOQ Limit of Quantitation (DoD/DOE)
MCL EPA recommended "Maximum Contaminant Level"
MDA Minimum Detectable Activity (Radiochemistry)
MDC Minimum Detectable Concentration (Radiochemistry)
MDL Method Detection Limit
ML Minimum Level (Dioxin)
MPN Most Probable Number
MQL Method Quantitation Limit
NC Not Calculated
ND Not Detected at the reporting limit (or MDL or EDL if shown)
NEG Negative / Absent
POS Positive / Present
PQL Practical Quantitation Limit
PRES Presumptive
QC Quality Control
RER Relative Error Ratio (Radiochemistry)
RL Reporting Limit or Requested Limit (Radiochemistry)
RPD Relative Percent Difference, a measure of the relative difference between two points
TEF Toxicity Equivalent Factor (Dioxin)
TEQ Toxicity Equivalent Quotient (Dioxin)
TNTC Too Numerous To Count
Eurofins Lancaster Laboratories Env, LLC
Page 4 of 37 11/30/2020
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Case Narrative
Client: ARCADIS U.S., Inc.Job ID: 410-20956-1
Project/Site: 99-GRE - Greensboro, NC
Job ID: 410-20956-1
Laboratory: Eurofins Lancaster Laboratories Env, LLC
Narrative
Job Narrative
410-20956-1
Receipt
The samples were received on 11/14/2020 10:00 AM; the samples arrived in good condition, and, where required, properly preserved and
on ice. The temperature of the cooler at receipt time was 2.9°C
GC/MS VOA
Method SM6200_B: Internal standard (ISTD) response for t-Butyl alcohol-d10 was outside acceptance criteria for both the large and small
closing continuing calibration verification (CCVC) on analytical batch 410-68541. There was insufficient holding time to perform a
re-analysis; therefore, the data have been reported.
Method SM6200_B: The following volatiles sample was diluted due to foaming at the time of purging during the original sample analysis:
MW-7 (410-20956-4). Elevated reporting limits (RLs) are provided.
Method SM6200_B: The method requirement for no headspace was not met on analytical batch 410-69391. Due to the need for
re-analysis, the container used for the following sample was previously opened and contained headspace: MW-1R (410-20956-1). The
original sample container did not contain headspace.
Method SM6200_B: The following volatiles sample was diluted due to foaming at the time of purging during the original sample analysis:
MW-6 (410-20956-3). Elevated reporting limits (RLs) are provided.
No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page.
Eurofins Lancaster Laboratories Env, LLCPage 5 of 37 11/30/2020
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Detection Summary
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Client Sample ID: MW-1R Lab Sample ID: 410-20956-1
1,2,4-Trimethylbenzene
RL
0.50 ug/L
MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type
Total/NA10.50 6200 B-2011
1,3,5-Trimethylbenzene 0.50 ug/L Total/NA10.84 6200 B-2011
Benzene 0.50 ug/L Total/NA11.8 6200 B-2011
Toluene 0.50 ug/L Total/NA12.0 6200 B-2011
Xylenes, Total 1.0 ug/L Total/NA1106200 B-2011
1,3,5-Trimethylbenzene - RA 0.50 ug/L Total/NA10.79 6200 B-2011
Benzene - RA 0.50 ug/L Total/NA11.7 6200 B-2011
Toluene - RA 0.50 ug/L Total/NA11.9 6200 B-2011
Xylenes, Total - RA 1.0 ug/L Total/NA19.6 6200 B-2011
Client Sample ID: MW-4 Lab Sample ID: 410-20956-2
Ethylbenzene
RL
25 ug/L
MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type
Total/NA504906200 B-2011
N-Propylbenzene 25 ug/L Total/NA50466200 B-2011
Naphthalene 25 ug/L Total/NA50756200 B-2011
Toluene 25 ug/L Total/NA50486200 B-2011
Xylenes, Total 50 ug/L Total/NA50826200 B-2011
Benzene - DL 250 ug/L Total/NA50032006200 B-2011
Client Sample ID: MW-6 Lab Sample ID: 410-20956-3
No Detections.
Client Sample ID: MW-7 Lab Sample ID: 410-20956-4
No Detections.
Client Sample ID: MW-9 Lab Sample ID: 410-20956-5
1,2,4-Trimethylbenzene
RL
25 ug/L
MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type
Total/NA503606200 B-2011
1,3,5-Trimethylbenzene 25 ug/L Total/NA501906200 B-2011
Ethylbenzene 25 ug/L Total/NA504306200 B-2011
Naphthalene 25 ug/L Total/NA50576200 B-2011
Benzene - DL 250 ug/L Total/NA50032006200 B-2011
Toluene - DL 250 ug/L Total/NA50043006200 B-2011
Xylenes, Total - DL 500 ug/L Total/NA50040006200 B-2011
Client Sample ID: MW-10 Lab Sample ID: 410-20956-6
No Detections.
Client Sample ID: Trip Blank Lab Sample ID: 410-20956-7
No Detections.
Eurofins Lancaster Laboratories Env, LLC
This Detection Summary does not include radiochemical test results.
Page 6 of 37 11/30/2020
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-1Client Sample ID: MW-1R
Matrix: GroundwaterDate Collected: 11/13/20 11:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 11/23/20 15:07 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/23/20 15:07 11,1,1-Trichloroethane <0.50
0.50 ug/L 11/23/20 15:07 11,1,2,2-Tetrachloroethane <0.50
0.50 ug/L 11/23/20 15:07 11,1,2-Trichloroethane <0.50
0.50 ug/L 11/23/20 15:07 11,1-Dichloroethane <0.50
0.50 ug/L 11/23/20 15:07 11,1-Dichloroethene <0.50
0.50 ug/L 11/23/20 15:07 11,1-Dichloropropene <0.50
0.50 ug/L 11/23/20 15:07 11,2,3-Trichlorobenzene <0.50
2.0 ug/L 11/23/20 15:07 11,2,3-Trichloropropane <2.0
0.50 ug/L 11/23/20 15:07 11,2,4-Trichlorobenzene <0.50
0.50 ug/L 11/23/20 15:07 11,2,4-Trimethylbenzene 0.50
2.0 ug/L 11/23/20 15:07 11,2-Dibromo-3-Chloropropane <2.0
0.50 ug/L 11/23/20 15:07 11,2-Dibromoethane <0.50
0.50 ug/L 11/23/20 15:07 11,2-Dichlorobenzene <0.50
0.50 ug/L 11/23/20 15:07 11,2-Dichloroethane <0.50
0.50 ug/L 11/23/20 15:07 11,2-Dichloropropane <0.50
0.50 ug/L 11/23/20 15:07 11,3,5-Trimethylbenzene 0.84
0.50 ug/L 11/23/20 15:07 11,3-Dichlorobenzene <0.50
0.50 ug/L 11/23/20 15:07 11,3-Dichloropropane <0.50
0.50 ug/L 11/23/20 15:07 11,4-Dichlorobenzene <0.50
0.50 ug/L 11/23/20 15:07 12,2-Dichloropropane <0.50
0.50 ug/L 11/23/20 15:07 12-Chlorotoluene <0.50
0.50 ug/L 11/23/20 15:07 14-Chlorotoluene <0.50
0.50 ug/L 11/23/20 15:07 1Benzene1.8
0.50 ug/L 11/23/20 15:07 1Bromobenzene<0.50
0.50 ug/L 11/23/20 15:07 1Bromochloromethane<0.50
0.50 ug/L 11/23/20 15:07 1Bromodichloromethane<0.50
1.0 ug/L 11/23/20 15:07 1Bromoform<1.0
0.50 ug/L 11/23/20 15:07 1Bromomethane<0.50
0.50 ug/L 11/23/20 15:07 1Carbon tetrachloride <0.50
0.50 ug/L 11/23/20 15:07 1Chlorobenzene<0.50
0.50 ug/L 11/23/20 15:07 1Chloroethane<0.50
0.50 ug/L 11/23/20 15:07 1Chloroform<0.50
0.50 ug/L 11/23/20 15:07 1cis-1,2-Dichloroethene <0.50
0.50 ug/L 11/23/20 15:07 1cis-1,3-Dichloropropene <0.50
0.80 ug/L 11/23/20 15:07 1Chloromethane<0.80
0.50 ug/L 11/23/20 15:07 1Dibromochloromethane<0.50
0.50 ug/L 11/23/20 15:07 1Dibromomethane<0.50
0.50 ug/L 11/23/20 15:07 1Dichlorodifluoromethane<0.50
200 ug/L 11/23/20 15:07 1Ethanol<200 *3
0.50 ug/L 11/23/20 15:07 1Ethylbenzene<0.50
0.50 ug/L 11/23/20 15:07 1Hexachlorobutadiene<0.50
0.50 ug/L 11/23/20 15:07 1Isopropylbenzene<0.50
0.50 ug/L 11/23/20 15:07 1Methyl tertiary butyl ether <0.50
0.80 ug/L 11/23/20 15:07 1Methylene Chloride <0.80
0.50 ug/L 11/23/20 15:07 1n-Butylbenzene <0.50
0.50 ug/L 11/23/20 15:07 1N-Propylbenzene <0.50
0.50 ug/L 11/23/20 15:07 1Naphthalene<0.50
0.50 ug/L 11/23/20 15:07 1p-Isopropyltoluene <0.50
Eurofins Lancaster Laboratories Env, LLC
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-1Client Sample ID: MW-1R
Matrix: GroundwaterDate Collected: 11/13/20 11:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
sec-Butylbenzene <0.50 0.50 ug/L 11/23/20 15:07 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/23/20 15:07 1Styrene<0.50
0.50 ug/L 11/23/20 15:07 1tert-Butylbenzene <0.50
0.50 ug/L 11/23/20 15:07 1Tetrachloroethene<0.50
0.50 ug/L 11/23/20 15:07 1Toluene2.0
0.50 ug/L 11/23/20 15:07 1trans-1,2-Dichloroethene <0.50
0.50 ug/L 11/23/20 15:07 1trans-1,3-Dichloropropene <0.50
0.50 ug/L 11/23/20 15:07 1Trichloroethene<0.50
0.50 ug/L 11/23/20 15:07 1Trichlorofluoromethane<0.50
0.50 ug/L 11/23/20 15:07 1Vinyl chloride <0.50
1.0 ug/L 11/23/20 15:07 1Xylenes, Total 10
1,2-Dichloroethane-d4 (Surr)79 70-130 11/23/20 15:07 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)94 11/23/20 15:07 170-130
Dibromofluoromethane (Surr)97 11/23/20 15:07 170-130
Toluene-d8 (Surr)104 11/23/20 15:07 170-130
Method: 6200 B-2011 - Volatile Organic Compounds - RA
RL MDL
1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 11/23/20 15:55 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/23/20 15:55 11,1,1-Trichloroethane <0.50
0.50 ug/L 11/23/20 15:55 11,1,2,2-Tetrachloroethane <0.50
0.50 ug/L 11/23/20 15:55 11,1,2-Trichloroethane <0.50
0.50 ug/L 11/23/20 15:55 11,1-Dichloroethane <0.50
0.50 ug/L 11/23/20 15:55 11,1-Dichloroethene <0.50
0.50 ug/L 11/23/20 15:55 11,1-Dichloropropene <0.50
0.50 ug/L 11/23/20 15:55 11,2,3-Trichlorobenzene <0.50
2.0 ug/L 11/23/20 15:55 11,2,3-Trichloropropane <2.0
0.50 ug/L 11/23/20 15:55 11,2,4-Trichlorobenzene <0.50
0.50 ug/L 11/23/20 15:55 11,2,4-Trimethylbenzene <0.50
2.0 ug/L 11/23/20 15:55 11,2-Dibromo-3-Chloropropane <2.0
0.50 ug/L 11/23/20 15:55 11,2-Dibromoethane <0.50
0.50 ug/L 11/23/20 15:55 11,2-Dichlorobenzene <0.50
0.50 ug/L 11/23/20 15:55 11,2-Dichloroethane <0.50
0.50 ug/L 11/23/20 15:55 11,2-Dichloropropane <0.50
0.50 ug/L 11/23/20 15:55 11,3,5-Trimethylbenzene 0.79
0.50 ug/L 11/23/20 15:55 11,3-Dichlorobenzene <0.50
0.50 ug/L 11/23/20 15:55 11,3-Dichloropropane <0.50
0.50 ug/L 11/23/20 15:55 11,4-Dichlorobenzene <0.50
0.50 ug/L 11/23/20 15:55 12,2-Dichloropropane <0.50
0.50 ug/L 11/23/20 15:55 12-Chlorotoluene <0.50
0.50 ug/L 11/23/20 15:55 14-Chlorotoluene <0.50
0.50 ug/L 11/23/20 15:55 1Benzene1.7
0.50 ug/L 11/23/20 15:55 1Bromobenzene<0.50
0.50 ug/L 11/23/20 15:55 1Bromochloromethane<0.50
0.50 ug/L 11/23/20 15:55 1Bromodichloromethane<0.50
1.0 ug/L 11/23/20 15:55 1Bromoform<1.0
0.50 ug/L 11/23/20 15:55 1Bromomethane<0.50
0.50 ug/L 11/23/20 15:55 1Carbon tetrachloride <0.50
Eurofins Lancaster Laboratories Env, LLC
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-1Client Sample ID: MW-1R
Matrix: GroundwaterDate Collected: 11/13/20 11:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds - RA (Continued)
RL MDL
Chlorobenzene <0.50 0.50 ug/L 11/23/20 15:55 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/23/20 15:55 1Chloroethane<0.50
0.50 ug/L 11/23/20 15:55 1Chloroform<0.50
0.50 ug/L 11/23/20 15:55 1cis-1,2-Dichloroethene <0.50
0.50 ug/L 11/23/20 15:55 1cis-1,3-Dichloropropene <0.50
0.80 ug/L 11/23/20 15:55 1Chloromethane<0.80
0.50 ug/L 11/23/20 15:55 1Dibromochloromethane<0.50
0.50 ug/L 11/23/20 15:55 1Dibromomethane<0.50
0.50 ug/L 11/23/20 15:55 1Dichlorodifluoromethane<0.50
200 ug/L 11/23/20 15:55 1Ethanol<200 *3
0.50 ug/L 11/23/20 15:55 1Ethylbenzene<0.50
0.50 ug/L 11/23/20 15:55 1Hexachlorobutadiene<0.50
0.50 ug/L 11/23/20 15:55 1Isopropylbenzene<0.50
0.50 ug/L 11/23/20 15:55 1Methyl tertiary butyl ether <0.50
0.80 ug/L 11/23/20 15:55 1Methylene Chloride <0.80
0.50 ug/L 11/23/20 15:55 1n-Butylbenzene <0.50
0.50 ug/L 11/23/20 15:55 1N-Propylbenzene <0.50
0.50 ug/L 11/23/20 15:55 1Naphthalene<0.50
0.50 ug/L 11/23/20 15:55 1p-Isopropyltoluene <0.50
0.50 ug/L 11/23/20 15:55 1sec-Butylbenzene <0.50
0.50 ug/L 11/23/20 15:55 1Styrene<0.50
0.50 ug/L 11/23/20 15:55 1tert-Butylbenzene <0.50
0.50 ug/L 11/23/20 15:55 1Tetrachloroethene<0.50
0.50 ug/L 11/23/20 15:55 1Toluene1.9
0.50 ug/L 11/23/20 15:55 1trans-1,2-Dichloroethene <0.50
0.50 ug/L 11/23/20 15:55 1trans-1,3-Dichloropropene <0.50
0.50 ug/L 11/23/20 15:55 1Trichloroethene<0.50
0.50 ug/L 11/23/20 15:55 1Trichlorofluoromethane<0.50
0.50 ug/L 11/23/20 15:55 1Vinyl chloride <0.50
1.0 ug/L 11/23/20 15:55 1Xylenes, Total 9.6
1,2-Dichloroethane-d4 (Surr)76 70-130 11/23/20 15:55 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)91 11/23/20 15:55 170-130
Dibromofluoromethane (Surr)96 11/23/20 15:55 170-130
Toluene-d8 (Surr)104 11/23/20 15:55 170-130
Eurofins Lancaster Laboratories Env, LLC
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-2Client Sample ID: MW-4
Matrix: GroundwaterDate Collected: 11/13/20 09:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <25 25 ug/L 11/22/20 15:42 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
25 ug/L 11/22/20 15:42 501,1,1-Trichloroethane <25
25 ug/L 11/22/20 15:42 501,1,2,2-Tetrachloroethane <25
25 ug/L 11/22/20 15:42 501,1,2-Trichloroethane <25
25 ug/L 11/22/20 15:42 501,1-Dichloroethane <25
25 ug/L 11/22/20 15:42 501,1-Dichloroethene <25
25 ug/L 11/22/20 15:42 501,1-Dichloropropene <25
25 ug/L 11/22/20 15:42 501,2,3-Trichlorobenzene <25
100 ug/L 11/22/20 15:42 501,2,3-Trichloropropane <100
25 ug/L 11/22/20 15:42 501,2,4-Trichlorobenzene <25
25 ug/L 11/22/20 15:42 501,2,4-Trimethylbenzene <25
100 ug/L 11/22/20 15:42 501,2-Dibromo-3-Chloropropane <100
25 ug/L 11/22/20 15:42 501,2-Dibromoethane <25
25 ug/L 11/22/20 15:42 501,2-Dichlorobenzene <25
25 ug/L 11/22/20 15:42 501,2-Dichloroethane <25
25 ug/L 11/22/20 15:42 501,2-Dichloropropane <25
25 ug/L 11/22/20 15:42 501,3,5-Trimethylbenzene <25
25 ug/L 11/22/20 15:42 501,3-Dichlorobenzene <25
25 ug/L 11/22/20 15:42 501,3-Dichloropropane <25
25 ug/L 11/22/20 15:42 501,4-Dichlorobenzene <25
25 ug/L 11/22/20 15:42 502,2-Dichloropropane <25
25 ug/L 11/22/20 15:42 502-Chlorotoluene <25
25 ug/L 11/22/20 15:42 504-Chlorotoluene <25
25 ug/L 11/22/20 15:42 50Bromobenzene<25
25 ug/L 11/22/20 15:42 50Bromochloromethane<25
25 ug/L 11/22/20 15:42 50Bromodichloromethane<25
50 ug/L 11/22/20 15:42 50Bromoform<50
25 ug/L 11/22/20 15:42 50Bromomethane<25
25 ug/L 11/22/20 15:42 50Carbon tetrachloride <25
25 ug/L 11/22/20 15:42 50Chlorobenzene<25
25 ug/L 11/22/20 15:42 50Chloroethane<25
25 ug/L 11/22/20 15:42 50Chloroform<25
25 ug/L 11/22/20 15:42 50cis-1,2-Dichloroethene <25
25 ug/L 11/22/20 15:42 50cis-1,3-Dichloropropene <25
40 ug/L 11/22/20 15:42 50Chloromethane<40
25 ug/L 11/22/20 15:42 50Dibromochloromethane<25
25 ug/L 11/22/20 15:42 50Dibromomethane<25
25 ug/L 11/22/20 15:42 50Dichlorodifluoromethane<25
10000 ug/L 11/22/20 15:42 50Ethanol<10000
25 ug/L 11/22/20 15:42 50Ethylbenzene490
25 ug/L 11/22/20 15:42 50Hexachlorobutadiene<25
25 ug/L 11/22/20 15:42 50Isopropylbenzene<25
25 ug/L 11/22/20 15:42 50Methyl tertiary butyl ether <25
40 ug/L 11/22/20 15:42 50Methylene Chloride <40
25 ug/L 11/22/20 15:42 50n-Butylbenzene <25
25 ug/L 11/22/20 15:42 50N-Propylbenzene 46
25 ug/L 11/22/20 15:42 50Naphthalene75
25 ug/L 11/22/20 15:42 50p-Isopropyltoluene <25
25 ug/L 11/22/20 15:42 50sec-Butylbenzene <25
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-2Client Sample ID: MW-4
Matrix: GroundwaterDate Collected: 11/13/20 09:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
Styrene <25 25 ug/L 11/22/20 15:42 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
25 ug/L 11/22/20 15:42 50tert-Butylbenzene <25
25 ug/L 11/22/20 15:42 50Tetrachloroethene<25
25 ug/L 11/22/20 15:42 50Toluene48
25 ug/L 11/22/20 15:42 50trans-1,2-Dichloroethene <25
25 ug/L 11/22/20 15:42 50trans-1,3-Dichloropropene <25
25 ug/L 11/22/20 15:42 50Trichloroethene<25
25 ug/L 11/22/20 15:42 50Trichlorofluoromethane<25
25 ug/L 11/22/20 15:42 50Vinyl chloride <25
50 ug/L 11/22/20 15:42 50Xylenes, Total 82
1,2-Dichloroethane-d4 (Surr)76 70-130 11/22/20 15:42 50
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)93 11/22/20 15:42 5070-130
Dibromofluoromethane (Surr)94 11/22/20 15:42 5070-130
Toluene-d8 (Surr)100 11/22/20 15:42 5070-130
Method: 6200 B-2011 - Volatile Organic Compounds - DL
RL MDL
Benzene 3200 250 ug/L 11/22/20 16:05 500
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1,2-Dichloroethane-d4 (Surr)79 70-130 11/22/20 16:05 500
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)91 11/22/20 16:05 50070-130
Dibromofluoromethane (Surr)101 11/22/20 16:05 50070-130
Toluene-d8 (Surr)96 11/22/20 16:05 50070-130
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-3Client Sample ID: MW-6
Matrix: GroundwaterDate Collected: 11/13/20 08:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <2.5 2.5 ug/L 11/23/20 15:30 5
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
2.5 ug/L 11/23/20 15:30 51,1,1-Trichloroethane <2.5
2.5 ug/L 11/23/20 15:30 51,1,2,2-Tetrachloroethane <2.5
2.5 ug/L 11/23/20 15:30 51,1,2-Trichloroethane <2.5
2.5 ug/L 11/23/20 15:30 51,1-Dichloroethane <2.5
2.5 ug/L 11/23/20 15:30 51,1-Dichloroethene <2.5
2.5 ug/L 11/23/20 15:30 51,1-Dichloropropene <2.5
2.5 ug/L 11/23/20 15:30 51,2,3-Trichlorobenzene <2.5
10 ug/L 11/23/20 15:30 51,2,3-Trichloropropane <10
2.5 ug/L 11/23/20 15:30 51,2,4-Trichlorobenzene <2.5
2.5 ug/L 11/23/20 15:30 51,2,4-Trimethylbenzene <2.5
10 ug/L 11/23/20 15:30 51,2-Dibromo-3-Chloropropane <10
2.5 ug/L 11/23/20 15:30 51,2-Dibromoethane <2.5
2.5 ug/L 11/23/20 15:30 51,2-Dichlorobenzene <2.5
2.5 ug/L 11/23/20 15:30 51,2-Dichloroethane <2.5
2.5 ug/L 11/23/20 15:30 51,2-Dichloropropane <2.5
2.5 ug/L 11/23/20 15:30 51,3,5-Trimethylbenzene <2.5
2.5 ug/L 11/23/20 15:30 51,3-Dichlorobenzene <2.5
2.5 ug/L 11/23/20 15:30 51,3-Dichloropropane <2.5
2.5 ug/L 11/23/20 15:30 51,4-Dichlorobenzene <2.5
2.5 ug/L 11/23/20 15:30 52,2-Dichloropropane <2.5
2.5 ug/L 11/23/20 15:30 52-Chlorotoluene <2.5
2.5 ug/L 11/23/20 15:30 54-Chlorotoluene <2.5
2.5 ug/L 11/23/20 15:30 5Benzene<2.5
2.5 ug/L 11/23/20 15:30 5Bromobenzene<2.5
2.5 ug/L 11/23/20 15:30 5Bromochloromethane<2.5
2.5 ug/L 11/23/20 15:30 5Bromodichloromethane<2.5
5.0 ug/L 11/23/20 15:30 5Bromoform<5.0
2.5 ug/L 11/23/20 15:30 5Bromomethane<2.5
2.5 ug/L 11/23/20 15:30 5Carbon tetrachloride <2.5
2.5 ug/L 11/23/20 15:30 5Chlorobenzene<2.5
2.5 ug/L 11/23/20 15:30 5Chloroethane<2.5
2.5 ug/L 11/23/20 15:30 5Chloroform<2.5
2.5 ug/L 11/23/20 15:30 5cis-1,2-Dichloroethene <2.5
2.5 ug/L 11/23/20 15:30 5cis-1,3-Dichloropropene <2.5
4.0 ug/L 11/23/20 15:30 5Chloromethane<4.0
2.5 ug/L 11/23/20 15:30 5Dibromochloromethane<2.5
2.5 ug/L 11/23/20 15:30 5Dibromomethane<2.5
2.5 ug/L 11/23/20 15:30 5Dichlorodifluoromethane<2.5
1000 ug/L 11/23/20 15:30 5Ethanol<1000
2.5 ug/L 11/23/20 15:30 5Ethylbenzene<2.5
2.5 ug/L 11/23/20 15:30 5Hexachlorobutadiene<2.5
2.5 ug/L 11/23/20 15:30 5Isopropylbenzene<2.5
2.5 ug/L 11/23/20 15:30 5Methyl tertiary butyl ether <2.5
4.0 ug/L 11/23/20 15:30 5Methylene Chloride <4.0
2.5 ug/L 11/23/20 15:30 5n-Butylbenzene <2.5
2.5 ug/L 11/23/20 15:30 5N-Propylbenzene <2.5
2.5 ug/L 11/23/20 15:30 5Naphthalene<2.5
2.5 ug/L 11/23/20 15:30 5p-Isopropyltoluene <2.5
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-3Client Sample ID: MW-6
Matrix: GroundwaterDate Collected: 11/13/20 08:35
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
sec-Butylbenzene <2.5 2.5 ug/L 11/23/20 15:30 5
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
2.5 ug/L 11/23/20 15:30 5Styrene<2.5
2.5 ug/L 11/23/20 15:30 5tert-Butylbenzene <2.5
2.5 ug/L 11/23/20 15:30 5Tetrachloroethene<2.5
2.5 ug/L 11/23/20 15:30 5Toluene<2.5
2.5 ug/L 11/23/20 15:30 5trans-1,2-Dichloroethene <2.5
2.5 ug/L 11/23/20 15:30 5trans-1,3-Dichloropropene <2.5
2.5 ug/L 11/23/20 15:30 5Trichloroethene<2.5
2.5 ug/L 11/23/20 15:30 5Trichlorofluoromethane<2.5
2.5 ug/L 11/23/20 15:30 5Vinyl chloride <2.5
5.0 ug/L 11/23/20 15:30 5Xylenes, Total <5.0
1,2-Dichloroethane-d4 (Surr)81 70-130 11/23/20 15:30 5
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)91 11/23/20 15:30 570-130
Dibromofluoromethane (Surr)102 11/23/20 15:30 570-130
Toluene-d8 (Surr)97 11/23/20 15:30 570-130
Eurofins Lancaster Laboratories Env, LLC
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-4Client Sample ID: MW-7
Matrix: GroundwaterDate Collected: 11/13/20 13:40
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <1.0 1.0 ug/L 11/22/20 17:16 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.0 ug/L 11/22/20 17:16 21,1,1-Trichloroethane <1.0
1.0 ug/L 11/22/20 17:16 21,1,2,2-Tetrachloroethane <1.0
1.0 ug/L 11/22/20 17:16 21,1,2-Trichloroethane <1.0
1.0 ug/L 11/22/20 17:16 21,1-Dichloroethane <1.0
1.0 ug/L 11/22/20 17:16 21,1-Dichloroethene <1.0
1.0 ug/L 11/22/20 17:16 21,1-Dichloropropene <1.0
1.0 ug/L 11/22/20 17:16 21,2,3-Trichlorobenzene <1.0
4.0 ug/L 11/22/20 17:16 21,2,3-Trichloropropane <4.0
1.0 ug/L 11/22/20 17:16 21,2,4-Trichlorobenzene <1.0
1.0 ug/L 11/22/20 17:16 21,2,4-Trimethylbenzene <1.0
4.0 ug/L 11/22/20 17:16 21,2-Dibromo-3-Chloropropane <4.0
1.0 ug/L 11/22/20 17:16 21,2-Dibromoethane <1.0
1.0 ug/L 11/22/20 17:16 21,2-Dichlorobenzene <1.0
1.0 ug/L 11/22/20 17:16 21,2-Dichloroethane <1.0
1.0 ug/L 11/22/20 17:16 21,2-Dichloropropane <1.0
1.0 ug/L 11/22/20 17:16 21,3,5-Trimethylbenzene <1.0
1.0 ug/L 11/22/20 17:16 21,3-Dichlorobenzene <1.0
1.0 ug/L 11/22/20 17:16 21,3-Dichloropropane <1.0
1.0 ug/L 11/22/20 17:16 21,4-Dichlorobenzene <1.0
1.0 ug/L 11/22/20 17:16 22,2-Dichloropropane <1.0
1.0 ug/L 11/22/20 17:16 22-Chlorotoluene <1.0
1.0 ug/L 11/22/20 17:16 24-Chlorotoluene <1.0
1.0 ug/L 11/22/20 17:16 2Benzene<1.0
1.0 ug/L 11/22/20 17:16 2Bromobenzene<1.0
1.0 ug/L 11/22/20 17:16 2Bromochloromethane<1.0
1.0 ug/L 11/22/20 17:16 2Bromodichloromethane<1.0
2.0 ug/L 11/22/20 17:16 2Bromoform<2.0
1.0 ug/L 11/22/20 17:16 2Bromomethane<1.0
1.0 ug/L 11/22/20 17:16 2Carbon tetrachloride <1.0
1.0 ug/L 11/22/20 17:16 2Chlorobenzene<1.0
1.0 ug/L 11/22/20 17:16 2Chloroethane<1.0
1.0 ug/L 11/22/20 17:16 2Chloroform<1.0
1.0 ug/L 11/22/20 17:16 2cis-1,2-Dichloroethene <1.0
1.0 ug/L 11/22/20 17:16 2cis-1,3-Dichloropropene <1.0
1.6 ug/L 11/22/20 17:16 2Chloromethane<1.6
1.0 ug/L 11/22/20 17:16 2Dibromochloromethane<1.0
1.0 ug/L 11/22/20 17:16 2Dibromomethane<1.0
1.0 ug/L 11/22/20 17:16 2Dichlorodifluoromethane<1.0
400 ug/L 11/22/20 17:16 2Ethanol<400
1.0 ug/L 11/22/20 17:16 2Ethylbenzene<1.0
1.0 ug/L 11/22/20 17:16 2Hexachlorobutadiene<1.0
1.0 ug/L 11/22/20 17:16 2Isopropylbenzene<1.0
1.0 ug/L 11/22/20 17:16 2Methyl tertiary butyl ether <1.0
1.6 ug/L 11/22/20 17:16 2Methylene Chloride <1.6
1.0 ug/L 11/22/20 17:16 2n-Butylbenzene <1.0
1.0 ug/L 11/22/20 17:16 2N-Propylbenzene <1.0
1.0 ug/L 11/22/20 17:16 2Naphthalene<1.0
1.0 ug/L 11/22/20 17:16 2p-Isopropyltoluene <1.0
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-4Client Sample ID: MW-7
Matrix: GroundwaterDate Collected: 11/13/20 13:40
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
sec-Butylbenzene <1.0 1.0 ug/L 11/22/20 17:16 2
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
1.0 ug/L 11/22/20 17:16 2Styrene<1.0
1.0 ug/L 11/22/20 17:16 2tert-Butylbenzene <1.0
1.0 ug/L 11/22/20 17:16 2Tetrachloroethene<1.0
1.0 ug/L 11/22/20 17:16 2Toluene<1.0
1.0 ug/L 11/22/20 17:16 2trans-1,2-Dichloroethene <1.0
1.0 ug/L 11/22/20 17:16 2trans-1,3-Dichloropropene <1.0
1.0 ug/L 11/22/20 17:16 2Trichloroethene<1.0
1.0 ug/L 11/22/20 17:16 2Trichlorofluoromethane<1.0
1.0 ug/L 11/22/20 17:16 2Vinyl chloride <1.0
2.0 ug/L 11/22/20 17:16 2Xylenes, Total <2.0
1,2-Dichloroethane-d4 (Surr)81 70-130 11/22/20 17:16 2
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)92 11/22/20 17:16 270-130
Dibromofluoromethane (Surr)103 11/22/20 17:16 270-130
Toluene-d8 (Surr)96 11/22/20 17:16 270-130
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-5Client Sample ID: MW-9
Matrix: GroundwaterDate Collected: 11/13/20 10:25
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <25 25 ug/L 11/22/20 18:04 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
25 ug/L 11/22/20 18:04 501,1,1-Trichloroethane <25
25 ug/L 11/22/20 18:04 501,1,2,2-Tetrachloroethane <25
25 ug/L 11/22/20 18:04 501,1,2-Trichloroethane <25
25 ug/L 11/22/20 18:04 501,1-Dichloroethane <25
25 ug/L 11/22/20 18:04 501,1-Dichloroethene <25
25 ug/L 11/22/20 18:04 501,1-Dichloropropene <25
25 ug/L 11/22/20 18:04 501,2,3-Trichlorobenzene <25
100 ug/L 11/22/20 18:04 501,2,3-Trichloropropane <100
25 ug/L 11/22/20 18:04 501,2,4-Trichlorobenzene <25
25 ug/L 11/22/20 18:04 501,2,4-Trimethylbenzene 360
100 ug/L 11/22/20 18:04 501,2-Dibromo-3-Chloropropane <100
25 ug/L 11/22/20 18:04 501,2-Dibromoethane <25
25 ug/L 11/22/20 18:04 501,2-Dichlorobenzene <25
25 ug/L 11/22/20 18:04 501,2-Dichloroethane <25
25 ug/L 11/22/20 18:04 501,2-Dichloropropane <25
25 ug/L 11/22/20 18:04 501,3,5-Trimethylbenzene 190
25 ug/L 11/22/20 18:04 501,3-Dichlorobenzene <25
25 ug/L 11/22/20 18:04 501,3-Dichloropropane <25
25 ug/L 11/22/20 18:04 501,4-Dichlorobenzene <25
25 ug/L 11/22/20 18:04 502,2-Dichloropropane <25
25 ug/L 11/22/20 18:04 502-Chlorotoluene <25
25 ug/L 11/22/20 18:04 504-Chlorotoluene <25
25 ug/L 11/22/20 18:04 50Bromobenzene<25
25 ug/L 11/22/20 18:04 50Bromochloromethane<25
25 ug/L 11/22/20 18:04 50Bromodichloromethane<25
50 ug/L 11/22/20 18:04 50Bromoform<50
25 ug/L 11/22/20 18:04 50Bromomethane<25
25 ug/L 11/22/20 18:04 50Carbon tetrachloride <25
25 ug/L 11/22/20 18:04 50Chlorobenzene<25
25 ug/L 11/22/20 18:04 50Chloroethane<25
25 ug/L 11/22/20 18:04 50Chloroform<25
25 ug/L 11/22/20 18:04 50cis-1,2-Dichloroethene <25
25 ug/L 11/22/20 18:04 50cis-1,3-Dichloropropene <25
40 ug/L 11/22/20 18:04 50Chloromethane<40
25 ug/L 11/22/20 18:04 50Dibromochloromethane<25
25 ug/L 11/22/20 18:04 50Dibromomethane<25
25 ug/L 11/22/20 18:04 50Dichlorodifluoromethane<25
10000 ug/L 11/22/20 18:04 50Ethanol<10000
25 ug/L 11/22/20 18:04 50Ethylbenzene430
25 ug/L 11/22/20 18:04 50Hexachlorobutadiene<25
25 ug/L 11/22/20 18:04 50Isopropylbenzene<25
25 ug/L 11/22/20 18:04 50Methyl tertiary butyl ether <25
40 ug/L 11/22/20 18:04 50Methylene Chloride <40
25 ug/L 11/22/20 18:04 50n-Butylbenzene <25
25 ug/L 11/22/20 18:04 50N-Propylbenzene <25
25 ug/L 11/22/20 18:04 50Naphthalene57
25 ug/L 11/22/20 18:04 50p-Isopropyltoluene <25
25 ug/L 11/22/20 18:04 50sec-Butylbenzene <25
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-5Client Sample ID: MW-9
Matrix: GroundwaterDate Collected: 11/13/20 10:25
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
Styrene <25 25 ug/L 11/22/20 18:04 50
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
25 ug/L 11/22/20 18:04 50tert-Butylbenzene <25
25 ug/L 11/22/20 18:04 50Tetrachloroethene<25
25 ug/L 11/22/20 18:04 50trans-1,2-Dichloroethene <25
25 ug/L 11/22/20 18:04 50trans-1,3-Dichloropropene <25
25 ug/L 11/22/20 18:04 50Trichloroethene<25
25 ug/L 11/22/20 18:04 50Trichlorofluoromethane<25
25 ug/L 11/22/20 18:04 50Vinyl chloride <25
1,2-Dichloroethane-d4 (Surr)76 70-130 11/22/20 18:04 50
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)94 11/22/20 18:04 5070-130
Dibromofluoromethane (Surr)97 11/22/20 18:04 5070-130
Toluene-d8 (Surr)96 11/22/20 18:04 5070-130
Method: 6200 B-2011 - Volatile Organic Compounds - DL
RL MDL
Benzene 3200 250 ug/L 11/22/20 18:29 500
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
250 ug/L 11/22/20 18:29 500Toluene4300
500 ug/L 11/22/20 18:29 500Xylenes, Total 4000
1,2-Dichloroethane-d4 (Surr)79 70-130 11/22/20 18:29 500
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)96 11/22/20 18:29 50070-130
Dibromofluoromethane (Surr)99 11/22/20 18:29 50070-130
Toluene-d8 (Surr)96 11/22/20 18:29 50070-130
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-6Client Sample ID: MW-10
Matrix: GroundwaterDate Collected: 11/13/20 12:50
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 11/22/20 14:30 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/22/20 14:30 11,1,1-Trichloroethane <0.50
0.50 ug/L 11/22/20 14:30 11,1,2,2-Tetrachloroethane <0.50
0.50 ug/L 11/22/20 14:30 11,1,2-Trichloroethane <0.50
0.50 ug/L 11/22/20 14:30 11,1-Dichloroethane <0.50
0.50 ug/L 11/22/20 14:30 11,1-Dichloroethene <0.50
0.50 ug/L 11/22/20 14:30 11,1-Dichloropropene <0.50
0.50 ug/L 11/22/20 14:30 11,2,3-Trichlorobenzene <0.50
2.0 ug/L 11/22/20 14:30 11,2,3-Trichloropropane <2.0
0.50 ug/L 11/22/20 14:30 11,2,4-Trichlorobenzene <0.50
0.50 ug/L 11/22/20 14:30 11,2,4-Trimethylbenzene <0.50
2.0 ug/L 11/22/20 14:30 11,2-Dibromo-3-Chloropropane <2.0
0.50 ug/L 11/22/20 14:30 11,2-Dibromoethane <0.50
0.50 ug/L 11/22/20 14:30 11,2-Dichlorobenzene <0.50
0.50 ug/L 11/22/20 14:30 11,2-Dichloroethane <0.50
0.50 ug/L 11/22/20 14:30 11,2-Dichloropropane <0.50
0.50 ug/L 11/22/20 14:30 11,3,5-Trimethylbenzene <0.50
0.50 ug/L 11/22/20 14:30 11,3-Dichlorobenzene <0.50
0.50 ug/L 11/22/20 14:30 11,3-Dichloropropane <0.50
0.50 ug/L 11/22/20 14:30 11,4-Dichlorobenzene <0.50
0.50 ug/L 11/22/20 14:30 12,2-Dichloropropane <0.50
0.50 ug/L 11/22/20 14:30 12-Chlorotoluene <0.50
0.50 ug/L 11/22/20 14:30 14-Chlorotoluene <0.50
0.50 ug/L 11/22/20 14:30 1Benzene<0.50
0.50 ug/L 11/22/20 14:30 1Bromobenzene<0.50
0.50 ug/L 11/22/20 14:30 1Bromochloromethane<0.50
0.50 ug/L 11/22/20 14:30 1Bromodichloromethane<0.50
1.0 ug/L 11/22/20 14:30 1Bromoform<1.0
0.50 ug/L 11/22/20 14:30 1Bromomethane<0.50
0.50 ug/L 11/22/20 14:30 1Carbon tetrachloride <0.50
0.50 ug/L 11/22/20 14:30 1Chlorobenzene<0.50
0.50 ug/L 11/22/20 14:30 1Chloroethane<0.50
0.50 ug/L 11/22/20 14:30 1Chloroform<0.50
0.50 ug/L 11/22/20 14:30 1cis-1,2-Dichloroethene <0.50
0.50 ug/L 11/22/20 14:30 1cis-1,3-Dichloropropene <0.50
0.80 ug/L 11/22/20 14:30 1Chloromethane<0.80
0.50 ug/L 11/22/20 14:30 1Dibromochloromethane<0.50
0.50 ug/L 11/22/20 14:30 1Dibromomethane<0.50
0.50 ug/L 11/22/20 14:30 1Dichlorodifluoromethane<0.50
200 ug/L 11/22/20 14:30 1Ethanol<200
0.50 ug/L 11/22/20 14:30 1Ethylbenzene<0.50
0.50 ug/L 11/22/20 14:30 1Hexachlorobutadiene<0.50
0.50 ug/L 11/22/20 14:30 1Isopropylbenzene<0.50
0.50 ug/L 11/22/20 14:30 1Methyl tertiary butyl ether <0.50
0.80 ug/L 11/22/20 14:30 1Methylene Chloride <0.80
0.50 ug/L 11/22/20 14:30 1n-Butylbenzene <0.50
0.50 ug/L 11/22/20 14:30 1N-Propylbenzene <0.50
0.50 ug/L 11/22/20 14:30 1Naphthalene<0.50
0.50 ug/L 11/22/20 14:30 1p-Isopropyltoluene <0.50
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-6Client Sample ID: MW-10
Matrix: GroundwaterDate Collected: 11/13/20 12:50
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
sec-Butylbenzene <0.50 0.50 ug/L 11/22/20 14:30 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/22/20 14:30 1Styrene<0.50
0.50 ug/L 11/22/20 14:30 1tert-Butylbenzene <0.50
0.50 ug/L 11/22/20 14:30 1Tetrachloroethene<0.50
0.50 ug/L 11/22/20 14:30 1Toluene<0.50
0.50 ug/L 11/22/20 14:30 1trans-1,2-Dichloroethene <0.50
0.50 ug/L 11/22/20 14:30 1trans-1,3-Dichloropropene <0.50
0.50 ug/L 11/22/20 14:30 1Trichloroethene<0.50
0.50 ug/L 11/22/20 14:30 1Trichlorofluoromethane<0.50
0.50 ug/L 11/22/20 14:30 1Vinyl chloride <0.50
1.0 ug/L 11/22/20 14:30 1Xylenes, Total <1.0
1,2-Dichloroethane-d4 (Surr)79 70-130 11/22/20 14:30 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)92 11/22/20 14:30 170-130
Dibromofluoromethane (Surr)101 11/22/20 14:30 170-130
Toluene-d8 (Surr)96 11/22/20 14:30 170-130
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-7Client Sample ID: Trip Blank
Matrix: WaterDate Collected: 11/13/20 00:00
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds
RL MDL
1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 11/22/20 14:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/22/20 14:06 11,1,1-Trichloroethane <0.50
0.50 ug/L 11/22/20 14:06 11,1,2,2-Tetrachloroethane <0.50
0.50 ug/L 11/22/20 14:06 11,1,2-Trichloroethane <0.50
0.50 ug/L 11/22/20 14:06 11,1-Dichloroethane <0.50
0.50 ug/L 11/22/20 14:06 11,1-Dichloroethene <0.50
0.50 ug/L 11/22/20 14:06 11,1-Dichloropropene <0.50
0.50 ug/L 11/22/20 14:06 11,2,3-Trichlorobenzene <0.50
2.0 ug/L 11/22/20 14:06 11,2,3-Trichloropropane <2.0
0.50 ug/L 11/22/20 14:06 11,2,4-Trichlorobenzene <0.50
0.50 ug/L 11/22/20 14:06 11,2,4-Trimethylbenzene <0.50
2.0 ug/L 11/22/20 14:06 11,2-Dibromo-3-Chloropropane <2.0
0.50 ug/L 11/22/20 14:06 11,2-Dibromoethane <0.50
0.50 ug/L 11/22/20 14:06 11,2-Dichlorobenzene <0.50
0.50 ug/L 11/22/20 14:06 11,2-Dichloroethane <0.50
0.50 ug/L 11/22/20 14:06 11,2-Dichloropropane <0.50
0.50 ug/L 11/22/20 14:06 11,3,5-Trimethylbenzene <0.50
0.50 ug/L 11/22/20 14:06 11,3-Dichlorobenzene <0.50
0.50 ug/L 11/22/20 14:06 11,3-Dichloropropane <0.50
0.50 ug/L 11/22/20 14:06 11,4-Dichlorobenzene <0.50
0.50 ug/L 11/22/20 14:06 12,2-Dichloropropane <0.50
0.50 ug/L 11/22/20 14:06 12-Chlorotoluene <0.50
0.50 ug/L 11/22/20 14:06 14-Chlorotoluene <0.50
0.50 ug/L 11/22/20 14:06 1Benzene<0.50
0.50 ug/L 11/22/20 14:06 1Bromobenzene<0.50
0.50 ug/L 11/22/20 14:06 1Bromochloromethane<0.50
0.50 ug/L 11/22/20 14:06 1Bromodichloromethane<0.50
1.0 ug/L 11/22/20 14:06 1Bromoform<1.0
0.50 ug/L 11/22/20 14:06 1Bromomethane<0.50
0.50 ug/L 11/22/20 14:06 1Carbon tetrachloride <0.50
0.50 ug/L 11/22/20 14:06 1Chlorobenzene<0.50
0.50 ug/L 11/22/20 14:06 1Chloroethane<0.50
0.50 ug/L 11/22/20 14:06 1Chloroform<0.50
0.50 ug/L 11/22/20 14:06 1cis-1,2-Dichloroethene <0.50
0.50 ug/L 11/22/20 14:06 1cis-1,3-Dichloropropene <0.50
0.80 ug/L 11/22/20 14:06 1Chloromethane<0.80
0.50 ug/L 11/22/20 14:06 1Dibromochloromethane<0.50
0.50 ug/L 11/22/20 14:06 1Dibromomethane<0.50
0.50 ug/L 11/22/20 14:06 1Dichlorodifluoromethane<0.50
200 ug/L 11/22/20 14:06 1Ethanol<200
0.50 ug/L 11/22/20 14:06 1Ethylbenzene<0.50
0.50 ug/L 11/22/20 14:06 1Hexachlorobutadiene<0.50
0.50 ug/L 11/22/20 14:06 1Isopropylbenzene<0.50
0.50 ug/L 11/22/20 14:06 1Methyl tertiary butyl ether <0.50
0.80 ug/L 11/22/20 14:06 1Methylene Chloride <0.80
0.50 ug/L 11/22/20 14:06 1n-Butylbenzene <0.50
0.50 ug/L 11/22/20 14:06 1N-Propylbenzene <0.50
0.50 ug/L 11/22/20 14:06 1Naphthalene<0.50
0.50 ug/L 11/22/20 14:06 1p-Isopropyltoluene <0.50
Eurofins Lancaster Laboratories Env, LLC
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Client Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID: 410-20956-7Client Sample ID: Trip Blank
Matrix: WaterDate Collected: 11/13/20 00:00
Date Received: 11/14/20 10:00
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
RL MDL
sec-Butylbenzene <0.50 0.50 ug/L 11/22/20 14:06 1
Analyte Dil FacAnalyzedPreparedUnitDResultQualifier
0.50 ug/L 11/22/20 14:06 1Styrene<0.50
0.50 ug/L 11/22/20 14:06 1tert-Butylbenzene <0.50
0.50 ug/L 11/22/20 14:06 1Tetrachloroethene<0.50
0.50 ug/L 11/22/20 14:06 1Toluene<0.50
0.50 ug/L 11/22/20 14:06 1trans-1,2-Dichloroethene <0.50
0.50 ug/L 11/22/20 14:06 1trans-1,3-Dichloropropene <0.50
0.50 ug/L 11/22/20 14:06 1Trichloroethene<0.50
0.50 ug/L 11/22/20 14:06 1Trichlorofluoromethane<0.50
0.50 ug/L 11/22/20 14:06 1Vinyl chloride <0.50
1.0 ug/L 11/22/20 14:06 1Xylenes, Total <1.0
1,2-Dichloroethane-d4 (Surr)83 70-130 11/22/20 14:06 1
Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery
4-Bromofluorobenzene (Surr)90 11/22/20 14:06 170-130
Dibromofluoromethane (Surr)104 11/22/20 14:06 170-130
Toluene-d8 (Surr)97 11/22/20 14:06 170-130
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Surrogate Summary
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Groundwater
Lab Sample ID Client Sample ID (70-130)(70-130)(70-130)(70-130)
DCA BFB DBFM TOL
76 91 96 104410-20956-1 - RA
Percent Surrogate Recovery (Acceptance Limits)
MW-1R
79 94 97 104410-20956-1 MW-1R
76 93 94 100410-20956-2 MW-4
79 91 101 96410-20956-2 - DL MW-4
81 91 102 97410-20956-3 MW-6
81 92 103 96410-20956-4 MW-7
76 94 97 96410-20956-5 MW-9
79 96 99 96410-20956-5 - DL MW-9
79 92 101 96410-20956-6 MW-10
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Method: 6200 B-2011 - Volatile Organic Compounds
Prep Type: Total/NAMatrix: Water
Lab Sample ID Client Sample ID (70-130)(70-130)(70-130)(70-130)
DCA BFB DBFM TOL
83 90 104 97410-20956-7
Percent Surrogate Recovery (Acceptance Limits)
Trip Blank
77 97 97 100LCS 410-68541/1003 Lab Control Sample
78 92 100 97LCS 410-68541/1004 Lab Control Sample
76 95 98 99LCS 410-69391/1003 Lab Control Sample
79 90 101 96LCS 410-69391/1004 Lab Control Sample
82 92 102 97MB 410-68541/5 Method Blank
81 90 103 97MB 410-69391/5 Method Blank
Surrogate Legend
DCA = 1,2-Dichloroethane-d4 (Surr)
BFB = 4-Bromofluorobenzene (Surr)
DBFM = Dibromofluoromethane (Surr)
TOL = Toluene-d8 (Surr)
Eurofins Lancaster Laboratories Env, LLC
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds
Client Sample ID: Method BlankLab Sample ID: MB 410-68541/5
Matrix: Water Prep Type: Total/NA
Analysis Batch: 68541
RL MDL
1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 11/22/20 12:57 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.50 0.50 ug/L 11/22/20 12:57 11,1,1-Trichloroethane
<0.50 0.50 ug/L 11/22/20 12:57 11,1,2,2-Tetrachloroethane
<0.50 0.50 ug/L 11/22/20 12:57 11,1,2-Trichloroethane
<0.50 0.50 ug/L 11/22/20 12:57 11,1-Dichloroethane
<0.50 0.50 ug/L 11/22/20 12:57 11,1-Dichloroethene
<0.50 0.50 ug/L 11/22/20 12:57 11,1-Dichloropropene
<0.50 0.50 ug/L 11/22/20 12:57 11,2,3-Trichlorobenzene
<2.0 2.0 ug/L 11/22/20 12:57 11,2,3-Trichloropropane
<0.50 0.50 ug/L 11/22/20 12:57 11,2,4-Trichlorobenzene
<0.50 0.50 ug/L 11/22/20 12:57 11,2,4-Trimethylbenzene
<2.0 2.0 ug/L 11/22/20 12:57 11,2-Dibromo-3-Chloropropane
<0.50 0.50 ug/L 11/22/20 12:57 11,2-Dibromoethane
<0.50 0.50 ug/L 11/22/20 12:57 11,2-Dichlorobenzene
<0.50 0.50 ug/L 11/22/20 12:57 11,2-Dichloroethane
<0.50 0.50 ug/L 11/22/20 12:57 11,2-Dichloropropane
<0.50 0.50 ug/L 11/22/20 12:57 11,3,5-Trimethylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 11,3-Dichlorobenzene
<0.50 0.50 ug/L 11/22/20 12:57 11,3-Dichloropropane
<0.50 0.50 ug/L 11/22/20 12:57 11,4-Dichlorobenzene
<0.50 0.50 ug/L 11/22/20 12:57 12,2-Dichloropropane
<0.50 0.50 ug/L 11/22/20 12:57 12-Chlorotoluene
<0.50 0.50 ug/L 11/22/20 12:57 14-Chlorotoluene
<0.50 0.50 ug/L 11/22/20 12:57 1Benzene
<0.50 0.50 ug/L 11/22/20 12:57 1Bromobenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Bromochloromethane
<0.50 0.50 ug/L 11/22/20 12:57 1Bromodichloromethane
<1.0 1.0 ug/L 11/22/20 12:57 1Bromoform
<0.50 0.50 ug/L 11/22/20 12:57 1Bromomethane
<0.50 0.50 ug/L 11/22/20 12:57 1Carbon tetrachloride
<0.50 0.50 ug/L 11/22/20 12:57 1Chlorobenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Chloroethane
<0.50 0.50 ug/L 11/22/20 12:57 1Chloroform
<0.50 0.50 ug/L 11/22/20 12:57 1cis-1,2-Dichloroethene
<0.50 0.50 ug/L 11/22/20 12:57 1cis-1,3-Dichloropropene
<0.80 0.80 ug/L 11/22/20 12:57 1Chloromethane
<0.50 0.50 ug/L 11/22/20 12:57 1Dibromochloromethane
<0.50 0.50 ug/L 11/22/20 12:57 1Dibromomethane
<0.50 0.50 ug/L 11/22/20 12:57 1Dichlorodifluoromethane
<200 200 ug/L 11/22/20 12:57 1Ethanol
<0.50 0.50 ug/L 11/22/20 12:57 1Ethylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Hexachlorobutadiene
<0.50 0.50 ug/L 11/22/20 12:57 1Isopropylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Methyl tertiary butyl ether
<0.80 0.80 ug/L 11/22/20 12:57 1Methylene Chloride
<0.50 0.50 ug/L 11/22/20 12:57 1n-Butylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 1N-Propylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Naphthalene
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 410-68541/5
Matrix: Water Prep Type: Total/NA
Analysis Batch: 68541
RL MDL
p-Isopropyltoluene <0.50 0.50 ug/L 11/22/20 12:57 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.50 0.50 ug/L 11/22/20 12:57 1sec-Butylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Styrene
<0.50 0.50 ug/L 11/22/20 12:57 1tert-Butylbenzene
<0.50 0.50 ug/L 11/22/20 12:57 1Tetrachloroethene
<0.50 0.50 ug/L 11/22/20 12:57 1Toluene
<0.50 0.50 ug/L 11/22/20 12:57 1trans-1,2-Dichloroethene
<0.50 0.50 ug/L 11/22/20 12:57 1trans-1,3-Dichloropropene
<0.50 0.50 ug/L 11/22/20 12:57 1Trichloroethene
<0.50 0.50 ug/L 11/22/20 12:57 1Trichlorofluoromethane
<0.50 0.50 ug/L 11/22/20 12:57 1Vinyl chloride
<1.0 1.0 ug/L 11/22/20 12:57 1Xylenes, Total
1,2-Dichloroethane-d4 (Surr)82 70-130 11/22/20 12:57 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
92 11/22/20 12:57 14-Bromofluorobenzene (Surr)70-130
102 11/22/20 12:57 1Dibromofluoromethane (Surr)70-130
97 11/22/20 12:57 1Toluene-d8 (Surr)70-130
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-68541/1003
Matrix: Water Prep Type: Total/NA
Analysis Batch: 68541
1,1,1,2-Tetrachloroethane 10.0 9.57 ug/L 96 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,1,1-Trichloroethane 10.0 8.56 ug/L 86 70 -130
1,1,2,2-Tetrachloroethane 10.0 9.39 ug/L 94 70 -130
1,1,2-Trichloroethane 10.0 10.3 ug/L 103 70 -130
1,1-Dichloroethane 10.0 8.71 ug/L 87 70 -130
1,1-Dichloroethene 10.0 9.53 ug/L 95 70 -130
1,1-Dichloropropene 10.0 9.04 ug/L 90 70 -130
1,2,3-Trichlorobenzene 10.0 7.71 ug/L 77 70 -130
1,2,3-Trichloropropane 10.0 9.07 ug/L 91 70 -130
1,2,4-Trichlorobenzene 10.0 8.25 ug/L 83 70 -130
1,2,4-Trimethylbenzene 10.0 9.21 ug/L 92 70 -130
1,2-Dibromo-3-Chloropropane 10.0 7.45 ug/L 74 70 -130
1,2-Dibromoethane 10.0 9.58 ug/L 96 70 -130
1,2-Dichlorobenzene 10.0 9.56 ug/L 96 70 -130
1,2-Dichloroethane 10.0 7.28 ug/L 73 70 -130
1,2-Dichloropropane 10.0 9.42 ug/L 94 70 -130
1,3,5-Trimethylbenzene 10.0 9.43 ug/L 94 70 -130
1,3-Dichlorobenzene 10.0 9.52 ug/L 95 70 -130
1,3-Dichloropropane 10.0 8.94 ug/L 89 70 -130
1,4-Dichlorobenzene 10.0 9.71 ug/L 97 70 -130
2,2-Dichloropropane 10.0 8.42 ug/L 84 70 -130
2-Chlorotoluene 10.0 9.53 ug/L 95 70 -130
4-Chlorotoluene 10.0 9.53 ug/L 95 70 -130
Benzene 10.0 9.63 ug/L 96 70 -130
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-68541/1003
Matrix: Water Prep Type: Total/NA
Analysis Batch: 68541
Bromobenzene 10.0 9.48 ug/L 95 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
Bromochloromethane 10.0 9.25 ug/L 92 70 -130
Bromodichloromethane 10.0 8.81 ug/L 88 70 -130
Bromoform 10.0 10.0 ug/L 100 70 -130
Bromomethane 10.0 9.53 ug/L 95 70 -130
Carbon tetrachloride 10.0 8.60 ug/L 86 70 -130
Chlorobenzene 10.0 9.76 ug/L 98 70 -130
Chloroethane 10.0 9.77 ug/L 98 70 -130
Chloroform 10.0 8.93 ug/L 89 70 -130
cis-1,2-Dichloroethene 10.0 9.84 ug/L 98 70 -130
cis-1,3-Dichloropropene 10.0 9.14 ug/L 91 70 -130
Chloromethane 10.0 9.13 ug/L 91 70 -130
Dibromochloromethane 10.0 9.56 ug/L 96 70 -130
Dibromomethane 10.0 8.94 ug/L 89 70 -130
Dichlorodifluoromethane 10.0 7.75 ug/L 77 70 -130
Ethylbenzene 10.0 9.33 ug/L 93 70 -130
Hexachlorobutadiene 10.0 8.67 ug/L 87 70 -130
Isopropylbenzene 10.0 9.58 ug/L 96 70 -130
m&p-Xylene 20.0 19.9 ug/L 100 70 -130
Methyl tertiary butyl ether 10.0 8.97 ug/L 90 70 -130
Methylene Chloride 10.0 9.19 ug/L 92 70 -130
n-Butylbenzene 10.0 9.07 ug/L 91 70 -130
N-Propylbenzene 10.0 9.14 ug/L 91 70 -130
Naphthalene 10.0 7.81 ug/L 78 70 -130
o-Xylene 10.0 9.82 ug/L 98 70 -130
p-Isopropyltoluene 10.0 9.45 ug/L 95 70 -130
sec-Butylbenzene 10.0 9.49 ug/L 95 70 -130
Styrene 10.0 10.1 ug/L 101 70 -130
tert-Butylbenzene 10.0 9.70 ug/L 97 70 -130
Tetrachloroethene 10.0 12.5 ug/L 125 70 -130
Toluene 10.0 9.72 ug/L 97 70 -130
trans-1,2-Dichloroethene 10.0 9.72 ug/L 97 70 -130
trans-1,3-Dichloropropene 10.0 8.81 ug/L 88 70 -130
Trichloroethene 10.0 9.52 ug/L 95 70 -130
Trichlorofluoromethane 10.0 9.16 ug/L 92 70 -130
Vinyl chloride 10.0 8.90 ug/L 89 70 -130
Xylenes, Total 30.0 29.7 ug/L 99 70 -130
1,2-Dichloroethane-d4 (Surr)70 -130
Surrogate
77
LCS LCS
Qualifier Limits%Recovery
974-Bromofluorobenzene (Surr)70 -130
97Dibromofluoromethane (Surr)70 -130
100Toluene-d8 (Surr)70 -130
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-68541/1004
Matrix: Water Prep Type: Total/NA
Analysis Batch: 68541
Ethanol 1000 882 ug/L 88 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,2-Dichloroethane-d4 (Surr)70 -130
Surrogate
78
LCS LCS
Qualifier Limits%Recovery
924-Bromofluorobenzene (Surr)70 -130
100Dibromofluoromethane (Surr)70 -130
97Toluene-d8 (Surr)70 -130
Client Sample ID: Method BlankLab Sample ID: MB 410-69391/5
Matrix: Water Prep Type: Total/NA
Analysis Batch: 69391
RL MDL
1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 11/23/20 14:25 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.50 0.50 ug/L 11/23/20 14:25 11,1,1-Trichloroethane
<0.50 0.50 ug/L 11/23/20 14:25 11,1,2,2-Tetrachloroethane
<0.50 0.50 ug/L 11/23/20 14:25 11,1,2-Trichloroethane
<0.50 0.50 ug/L 11/23/20 14:25 11,1-Dichloroethane
<0.50 0.50 ug/L 11/23/20 14:25 11,1-Dichloroethene
<0.50 0.50 ug/L 11/23/20 14:25 11,1-Dichloropropene
<0.50 0.50 ug/L 11/23/20 14:25 11,2,3-Trichlorobenzene
<2.0 2.0 ug/L 11/23/20 14:25 11,2,3-Trichloropropane
<0.50 0.50 ug/L 11/23/20 14:25 11,2,4-Trichlorobenzene
<0.50 0.50 ug/L 11/23/20 14:25 11,2,4-Trimethylbenzene
<2.0 2.0 ug/L 11/23/20 14:25 11,2-Dibromo-3-Chloropropane
<0.50 0.50 ug/L 11/23/20 14:25 11,2-Dibromoethane
<0.50 0.50 ug/L 11/23/20 14:25 11,2-Dichlorobenzene
<0.50 0.50 ug/L 11/23/20 14:25 11,2-Dichloroethane
<0.50 0.50 ug/L 11/23/20 14:25 11,2-Dichloropropane
<0.50 0.50 ug/L 11/23/20 14:25 11,3,5-Trimethylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 11,3-Dichlorobenzene
<0.50 0.50 ug/L 11/23/20 14:25 11,3-Dichloropropane
<0.50 0.50 ug/L 11/23/20 14:25 11,4-Dichlorobenzene
<0.50 0.50 ug/L 11/23/20 14:25 12,2-Dichloropropane
<0.50 0.50 ug/L 11/23/20 14:25 12-Chlorotoluene
<0.50 0.50 ug/L 11/23/20 14:25 14-Chlorotoluene
<0.50 0.50 ug/L 11/23/20 14:25 1Benzene
<0.50 0.50 ug/L 11/23/20 14:25 1Bromobenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Bromochloromethane
<0.50 0.50 ug/L 11/23/20 14:25 1Bromodichloromethane
<1.0 1.0 ug/L 11/23/20 14:25 1Bromoform
<0.50 0.50 ug/L 11/23/20 14:25 1Bromomethane
<0.50 0.50 ug/L 11/23/20 14:25 1Carbon tetrachloride
<0.50 0.50 ug/L 11/23/20 14:25 1Chlorobenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Chloroethane
<0.50 0.50 ug/L 11/23/20 14:25 1Chloroform
<0.50 0.50 ug/L 11/23/20 14:25 1cis-1,2-Dichloroethene
<0.50 0.50 ug/L 11/23/20 14:25 1cis-1,3-Dichloropropene
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
Client Sample ID: Method BlankLab Sample ID: MB 410-69391/5
Matrix: Water Prep Type: Total/NA
Analysis Batch: 69391
RL MDL
Chloromethane <0.80 0.80 ug/L 11/23/20 14:25 1
MB MB
Analyte Dil FacAnalyzedPreparedDUnitResultQualifier
<0.50 0.50 ug/L 11/23/20 14:25 1Dibromochloromethane
<0.50 0.50 ug/L 11/23/20 14:25 1Dibromomethane
<0.50 0.50 ug/L 11/23/20 14:25 1Dichlorodifluoromethane
<200 200 ug/L 11/23/20 14:25 1Ethanol
<0.50 0.50 ug/L 11/23/20 14:25 1Ethylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Hexachlorobutadiene
<0.50 0.50 ug/L 11/23/20 14:25 1Isopropylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Methyl tertiary butyl ether
<0.80 0.80 ug/L 11/23/20 14:25 1Methylene Chloride
<0.50 0.50 ug/L 11/23/20 14:25 1n-Butylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 1N-Propylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Naphthalene
<0.50 0.50 ug/L 11/23/20 14:25 1p-Isopropyltoluene
<0.50 0.50 ug/L 11/23/20 14:25 1sec-Butylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Styrene
<0.50 0.50 ug/L 11/23/20 14:25 1tert-Butylbenzene
<0.50 0.50 ug/L 11/23/20 14:25 1Tetrachloroethene
<0.50 0.50 ug/L 11/23/20 14:25 1Toluene
<0.50 0.50 ug/L 11/23/20 14:25 1trans-1,2-Dichloroethene
<0.50 0.50 ug/L 11/23/20 14:25 1trans-1,3-Dichloropropene
<0.50 0.50 ug/L 11/23/20 14:25 1Trichloroethene
<0.50 0.50 ug/L 11/23/20 14:25 1Trichlorofluoromethane
<0.50 0.50 ug/L 11/23/20 14:25 1Vinyl chloride
<1.0 1.0 ug/L 11/23/20 14:25 1Xylenes, Total
1,2-Dichloroethane-d4 (Surr)81 70-130 11/23/20 14:25 1
MB MB
Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery
90 11/23/20 14:25 14-Bromofluorobenzene (Surr)70-130
103 11/23/20 14:25 1Dibromofluoromethane (Surr)70-130
97 11/23/20 14:25 1Toluene-d8 (Surr)70-130
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-69391/1003
Matrix: Water Prep Type: Total/NA
Analysis Batch: 69391
1,1,1,2-Tetrachloroethane 10.0 9.23 ug/L 92 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,1,1-Trichloroethane 10.0 8.41 ug/L 84 70 -130
1,1,2,2-Tetrachloroethane 10.0 9.02 ug/L 90 70 -130
1,1,2-Trichloroethane 10.0 10.0 ug/L 100 70 -130
1,1-Dichloroethane 10.0 8.73 ug/L 87 70 -130
1,1-Dichloroethene 10.0 9.37 ug/L 94 70 -130
1,1-Dichloropropene 10.0 8.61 ug/L 86 70 -130
1,2,3-Trichlorobenzene 10.0 8.12 ug/L 81 70 -130
1,2,3-Trichloropropane 10.0 8.74 ug/L 87 70 -130
1,2,4-Trichlorobenzene 10.0 8.48 ug/L 85 70 -130
1,2,4-Trimethylbenzene 10.0 9.05 ug/L 90 70 -130
Eurofins Lancaster Laboratories Env, LLC
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-69391/1003
Matrix: Water Prep Type: Total/NA
Analysis Batch: 69391
1,2-Dibromo-3-Chloropropane 10.0 7.04 ug/L 70 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,2-Dibromoethane 10.0 9.38 ug/L 94 70 -130
1,2-Dichlorobenzene 10.0 9.60 ug/L 96 70 -130
1,2-Dichloroethane 10.0 7.35 ug/L 73 70 -130
1,2-Dichloropropane 10.0 9.28 ug/L 93 70 -130
1,3,5-Trimethylbenzene 10.0 9.11 ug/L 91 70 -130
1,3-Dichlorobenzene 10.0 9.51 ug/L 95 70 -130
1,3-Dichloropropane 10.0 8.68 ug/L 87 70 -130
1,4-Dichlorobenzene 10.0 9.62 ug/L 96 70 -130
2,2-Dichloropropane 10.0 8.41 ug/L 84 70 -130
2-Chlorotoluene 10.0 9.25 ug/L 93 70 -130
4-Chlorotoluene 10.0 9.24 ug/L 92 70 -130
Benzene 10.0 9.56 ug/L 96 70 -130
Bromobenzene 10.0 9.51 ug/L 95 70 -130
Bromochloromethane 10.0 9.67 ug/L 97 70 -130
Bromodichloromethane 10.0 8.62 ug/L 86 70 -130
Bromoform 10.0 10.2 ug/L 102 70 -130
Bromomethane 10.0 9.23 ug/L 92 70 -130
Carbon tetrachloride 10.0 8.35 ug/L 83 70 -130
Chlorobenzene 10.0 9.48 ug/L 95 70 -130
Chloroethane 10.0 9.43 ug/L 94 70 -130
Chloroform 10.0 8.65 ug/L 86 70 -130
cis-1,2-Dichloroethene 10.0 9.74 ug/L 97 70 -130
cis-1,3-Dichloropropene 10.0 8.89 ug/L 89 70 -130
Chloromethane 10.0 8.74 ug/L 87 70 -130
Dibromochloromethane 10.0 9.51 ug/L 95 70 -130
Dibromomethane 10.0 8.87 ug/L 89 70 -130
Dichlorodifluoromethane 10.0 7.65 ug/L 76 70 -130
Ethylbenzene 10.0 9.17 ug/L 92 70 -130
Hexachlorobutadiene 10.0 9.16 ug/L 92 70 -130
Isopropylbenzene 10.0 9.35 ug/L 94 70 -130
m&p-Xylene 20.0 19.4 ug/L 97 70 -130
Methyl tertiary butyl ether 10.0 8.85 ug/L 88 70 -130
Methylene Chloride 10.0 9.06 ug/L 91 70 -130
n-Butylbenzene 10.0 9.02 ug/L 90 70 -130
N-Propylbenzene 10.0 8.91 ug/L 89 70 -130
Naphthalene 10.0 8.10 ug/L 81 70 -130
o-Xylene 10.0 9.63 ug/L 96 70 -130
p-Isopropyltoluene 10.0 9.15 ug/L 92 70 -130
sec-Butylbenzene 10.0 9.14 ug/L 91 70 -130
Styrene 10.0 10.1 ug/L 101 70 -130
tert-Butylbenzene 10.0 9.27 ug/L 93 70 -130
Tetrachloroethene 10.0 12.2 ug/L 122 70 -130
Toluene 10.0 9.57 ug/L 96 70 -130
trans-1,2-Dichloroethene 10.0 9.63 ug/L 96 70 -130
trans-1,3-Dichloropropene 10.0 8.38 ug/L 84 70 -130
Trichloroethene 10.0 9.37 ug/L 94 70 -130
Trichlorofluoromethane 10.0 8.79 ug/L 88 70 -130
Vinyl chloride 10.0 8.56 ug/L 86 70 -130
Eurofins Lancaster Laboratories Env, LLC
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QC Sample Results
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method: 6200 B-2011 - Volatile Organic Compounds (Continued)
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-69391/1003
Matrix: Water Prep Type: Total/NA
Analysis Batch: 69391
Xylenes, Total 30.0 29.0 ug/L 97 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,2-Dichloroethane-d4 (Surr)70 -130
Surrogate
76
LCS LCS
Qualifier Limits%Recovery
954-Bromofluorobenzene (Surr)70 -130
98Dibromofluoromethane (Surr)70 -130
99Toluene-d8 (Surr)70 -130
Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-69391/1004
Matrix: Water Prep Type: Total/NA
Analysis Batch: 69391
Ethanol 1000 1050 ug/L 105 70 -130
Analyte
LCS LCS
DUnitResultQualifier %Rec
Spike
Added
%Rec.
Limits
1,2-Dichloroethane-d4 (Surr)70 -130
Surrogate
79
LCS LCS
Qualifier Limits%Recovery
904-Bromofluorobenzene (Surr)70 -130
101Dibromofluoromethane (Surr)70 -130
96Toluene-d8 (Surr)70 -130
Eurofins Lancaster Laboratories Env, LLC
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QC Association Summary
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
GC/MS VOA
Analysis Batch: 68541
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Groundwater 6200 B-2011410-20956-2 MW-4 Total/NA
Groundwater 6200 B-2011410-20956-2 - DL MW-4 Total/NA
Groundwater 6200 B-2011410-20956-4 MW-7 Total/NA
Groundwater 6200 B-2011410-20956-5 MW-9 Total/NA
Groundwater 6200 B-2011410-20956-5 - DL MW-9 Total/NA
Groundwater 6200 B-2011410-20956-6 MW-10 Total/NA
Water 6200 B-2011410-20956-7 Trip Blank Total/NA
Water 6200 B-2011MB 410-68541/5 Method Blank Total/NA
Water 6200 B-2011LCS 410-68541/1003 Lab Control Sample Total/NA
Water 6200 B-2011LCS 410-68541/1004 Lab Control Sample Total/NA
Analysis Batch: 69391
Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch
Groundwater 6200 B-2011410-20956-1 MW-1R Total/NA
Groundwater 6200 B-2011410-20956-1 - RA MW-1R Total/NA
Groundwater 6200 B-2011410-20956-3 MW-6 Total/NA
Water 6200 B-2011MB 410-69391/5 Method Blank Total/NA
Water 6200 B-2011LCS 410-69391/1003 Lab Control Sample Total/NA
Water 6200 B-2011LCS 410-69391/1004 Lab Control Sample Total/NA
Eurofins Lancaster Laboratories Env, LLC
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Lab Chronicle
Client: ARCADIS U.S., Inc.Job ID: 410-20956-1
Project/Site: 99-GRE - Greensboro, NC
Client Sample ID: MW-1R Lab Sample ID: 410-20956-1
Matrix: GroundwaterDate Collected: 11/13/20 11:35
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/23/20 15:07 MJ8R169391 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Analysis 6200 B-2011 RA 1 69391 11/23/20 15:55 MJ8R ELLETotal/NA
Client Sample ID: MW-4 Lab Sample ID: 410-20956-2
Matrix: GroundwaterDate Collected: 11/13/20 09:35
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/22/20 15:42 MJ8R5068541 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Analysis 6200 B-2011 DL 500 68541 11/22/20 16:05 MJ8R ELLETotal/NA
Client Sample ID: MW-6 Lab Sample ID: 410-20956-3
Matrix: GroundwaterDate Collected: 11/13/20 08:35
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/23/20 15:30 MJ8R569391 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Client Sample ID: MW-7 Lab Sample ID: 410-20956-4
Matrix: GroundwaterDate Collected: 11/13/20 13:40
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/22/20 17:16 MJ8R268541 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Client Sample ID: MW-9 Lab Sample ID: 410-20956-5
Matrix: GroundwaterDate Collected: 11/13/20 10:25
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/22/20 18:04 MJ8R5068541 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Analysis 6200 B-2011 DL 500 68541 11/22/20 18:29 MJ8R ELLETotal/NA
Client Sample ID: MW-10 Lab Sample ID: 410-20956-6
Matrix: GroundwaterDate Collected: 11/13/20 12:50
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/22/20 14:30 MJ8R168541 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Client Sample ID: Trip Blank Lab Sample ID: 410-20956-7
Matrix: WaterDate Collected: 11/13/20 00:00
Date Received: 11/14/20 10:00
Analysis 6200 B-2011 11/22/20 14:06 MJ8R168541 ELLE
Type
Batch Batch
MethodPrep Type LabAnalystRun
Prepared
or Analyzed
Batch
Number
Dilution
Factor
Total/NA
Eurofins Lancaster Laboratories Env, LLC
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Lab Chronicle
Client: ARCADIS U.S., Inc.Job ID: 410-20956-1
Project/Site: 99-GRE - Greensboro, NC
Laboratory References:
ELLE = Eurofins Lancaster Laboratories Env, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL [phone]
Eurofins Lancaster Laboratories Env, LLC
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Accreditation/Certification Summary
Client: ARCADIS U.S., Inc.Job ID: 410-20956-1
Project/Site: 99-GRE - Greensboro, NC
Laboratory: Eurofins Lancaster Laboratories Env, LLC
Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below.
Authority Program Identification Number Expiration Date
North Carolina (WW/SW)521State 12-31-20
The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which
the agency does not offer certification.
Analysis Method Prep Method Matrix Analyte
6200 B-2011 Groundwater Ethanol
6200 B-2011 Groundwater Xylenes, Total
6200 B-2011 Water Ethanol
6200 B-2011 Water Xylenes, Total
Eurofins Lancaster Laboratories Env, LLC
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Method Summary
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Method Method Description LaboratoryProtocol
SM6200 B-2011 Volatile Organic Compounds ELLE
SW8465030BPurge and Trap ELLE
Protocol References:
SM = "Standard Methods For The Examination Of Water And Wastewater"
SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates.
Laboratory References:
ELLE = Eurofins Lancaster Laboratories Env, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL [phone]
Eurofins Lancaster Laboratories Env, LLC
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Sample Summary
Job ID: 410-20956-1Client: ARCADIS U.S., Inc.
Project/Site: 99-GRE - Greensboro, NC
Lab Sample ID Client Sample ID ReceivedCollectedMatrix Asset ID
410-20956-1 MW-1R Groundwater 11/13/20 11:35 11/14/20 10:00
410-20956-2 MW-4 Groundwater 11/13/20 09:35 11/14/20 10:00
410-20956-3 MW-6 Groundwater 11/13/20 08:35 11/14/20 10:00
410-20956-4 MW-7 Groundwater 11/13/20 13:40 11/14/20 10:00
410-20956-5 MW-9 Groundwater 11/13/20 10:25 11/14/20 10:00
410-20956-6 MW-10 Groundwater 11/13/20 12:50 11/14/20 10:00
410-20956-7 Trip Blank Water 11/13/20 00:00 11/14/20 10:00
Eurofins Lancaster Laboratories Env, LLC
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Login Sample Receipt Checklist
Client: ARCADIS U.S., Inc.Job Number: 410-20956-1
Login Number: 20956
Question Answer Comment
Creator: Rivera, Tatiana
List Source: Eurofins Lancaster Laboratories Env
List Number: 1
N/ARadioactivity wasn't checked or is </= background as measured by a survey
meter.
TrueThe cooler's custody seal is intact.
TrueThe cooler or samples do not appear to have been compromised or
tampered with.
TrueSamples were received on ice.
TrueCooler Temperature is acceptable (</=6C, not frozen).
TrueCooler Temperature is recorded.
N/AWV: Container Temperature is acceptable (</=6C, not frozen).
N/AWV: Container Temperature is recorded.
TrueCOC is present.
TrueCOC is filled out in ink and legible.
TrueCOC is filled out with all pertinent information.
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.
TrueThere is sufficient vol. for all requested analyses.
TrueMultiphasic samples are not present.
N/ASamples do not require splitting or compositing.
TrueIs the Field Sampler's name present on COC?
N/ASample Preservation Verified.
N/AResidual Chlorine Checked.
N/ASample custody seals are intact.
Eurofins Lancaster Laboratories Env
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Arcadis G&M of North Carolina., Inc.
5420 Wade Park Boulevard, Suite 350
Raleigh, North Carolina 27607
Tel [phone]
Fax [phone]
www.arcadis.com