WA-17011_17011_CA_RPTS_20211020

4300 Sapphire Court, Suite 100
Greenville, North Carolina 27834
Telephone: [phone]
www.gma-nc.com

Groundwater Management Associates, Inc. Apex and Greenville, NC

The Groundwater Experts
November 2, 2021

Ms. Allison Ward
NCDEQ, DWM, UST Section
Washington Regional Office
943 Washington Square Mall
Washington, North Carolina 27889

Re: Limited Groundwater Monitoring Event Letter
Lilley International, 103 East Boulevard, Williamston, Martin County, North Carolina
Non-UST Incident Number: 17011 Risk Classification: Intermediate Risk I60R

Dear Ms. Ward:

Groundwater Management Associates, Inc. (GMA) prepared this letter report on behalf of Lilley
International, Inc. at their facility located in Williamston, NC (Figures 1, 2, and 3) to summarize the
limited groundwater sampling completed on September 30, 2021. GMA measured and recorded water
levels in wells MW1, MW2, MW5, and MW6 in order to calculate the groundwater flow direction and
hydraulic gradient (Figure 2, Table 1). The average depth to groundwater in the surficial aquifer was
8.35 feet below top of casing (TOC). GMA calculated a horizontal hydraulic gradient of 0.025 feet/foot
to the east (Figure 3).

GMA collected a groundwater sample from monitoring well MW6 on September 30, 2021. Results
from the laboratory analysis of the sample indicate a concentration of benzene at 2,600 parts per
billion (ppb), The result is now below Gross Contaminant Level (GCL) of 5,000 ppb but remains above
15A NCAC 2L (2L) groundwater standard of 1.0 ppb (Table 2). Concentrations of toluene,
ethylbenzene, total xylenes, naphthalene, isopropyl benzene, n-propyl-benzene, 1,2,4-
trimethylbenzene, and 1,3,5-trimethylbenzene were above their respective 2L groundwater standards
(Table 2). With the exception of benzene and toluene which decreased significantly, contaminant
concentrations in the sample collected from well MW6 remained stable since the last groundwater
monitoring event on September 22, 2020 (Table 2). Groundwater samples were collected using
standard GMA and NCDEQ purging and sampling procedures (Attachment 1) and submitted to
Waypoint Laboratories, Inc. (Waypoint) for analysis of volatile organic compounds (VOCs) by EPA
Method 6200B. Copies of the laboratory reports and chain-of-custody forms for groundwater samples
are enclosed as Attachment 2.

GMA previously supervised four MMPE between October 2019 and July 2020. GMA estimates
approximately 22.5 gallons of gasoline vapors were recovered and approximately 77,800 gallons of
contaminated groundwater was extracted during the four MMPE events combined. GMA concludes the
MMPE event impacted dissolved petroleum contaminants in the groundwater in and around well MW6.
Letter Groundwater Monitoring Report
Lilley International, Inc. -Williamston
November 2, 2021 Page 2 of 2
The goal is to reduce benzene levels below 5,000 ppb benzene for at least two consecutive quarterly
or semi-annual events so that the risk-ranking can be reduced to "low." Once achieved, GMA will
advise the site be closed with a "Notice of Contamination" with a Deed Restriction.
Based on the sampling results of Benzene well below the Gels, GMA recommends resampling within
90 days (January 2022) to determine if the result is repeatable. If you have any questions or
comments about the enclosed report, please do not hesitate to contact us at [phone]. Thank
you.
Sincerely,
GMA
C~\~
Cody J. Shell, P.G.
Staff Hydrogeologist
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Enclosures: Figures 1, 2, and 3, Tables 1 and 2, Technical Methods and Standard Procedures
(Attachment 1), Copy of Laboratory Reports and Chain-Of-Custody Forms for Groundwater Samples
(Attachment 2)
cc: Mr. Laurence Lilley
Katie Hackney, P.G. -GMA, Greenville
Z:\GMA\574XX-Lilley International Inc\57401-Lilley Wiliiamston\Report\202110 GW Assess LTR\WA-
OOOO_17011_CA_MRP _20211020_LetterRpt.docx

Figures

!.
$
LEGEND
Date: 8/22/2019
Project No. 57401
TOPOGRAPHIC MAPFile: DRAWINGS/57401 TOPO Figure 1
0 1,000 2,000500Feet
WILLIAMSTONE QUADRANGLENORTH CAROLINA-MARTIN COUNTY7.5 MINUTE SERIES (TOPOGRAPHIC)CONTOUR INTERVAL=5 FEETMAP DATED 2019
LILLEY INTERNATIONAL, WILLIAMSTON, MARTIN CO., NC
!.SITE
@A
@A
@A
@A@A
@A
@A
!.@A(
@AD
MW1MW2
MW5
MW6MW7
MW8
MW9
MW3
FORMER GAS AST
FORMER GAS PUMP
MW4
FACTORY
@A
@A
@A
@A@A
@A
@A
!.@A(
@AD
MW1MW2
MW5
MW6MW7
MW8
MW9
MW3
FORMER GAS AST
FORMER GAS PUMP
MW4
FACTORY
$
LEGEND
Date: 8/27/2019
Project No. 57401
SITE MAP
LILLEY INTERNATIONAL, WILLIAMSTON, MARTIN CO., NC
File: DRAWINGS/157401/SITE
Figure 2
0 80'SCALE IN FEET
!.SITE
@A TYPE II MONITORING WELL
@A(TYPE III MONITORING WELL
ROADS
@AD LOST MONITORING WELL
FACTORY
FACTORY
LEGEND
10/04/2021
Project No. 57401
SURFICAL AQUIFER EQUIPOTENTIAL MAP, 09/30/2021
LILLEY INTERNATIONAL, WILLIAMSTON, MARTIN CO., NC
File: DRAWINGS/57401/EQMAP_20210930 Figure 3
0 80'SCALE IN FEET
MW1
MW2
MW5
MW6MW7
MW8
MW9
SITE
TYPE II MONITORING WELL
TYPE III MONITORING WELL
LOST MONITORING WELL
PARCELS
ROADS
GROUNDWATER FLOW DIRECTION
EQUIPOTENTIAL LINE
GENERAL NOTES:1. CONTOUR INTERVAL= 1.0 FOOT2. ARROW INDICATES DIRECTIONS OF GROUNDWATER FLOW3. ISOTROPIC CONDITIONS ARE ASSUMED4. WATER LEVEL ELEVATIONS ARE POSTED BY EACH WELL5. ( ) INDICATES DATA NOT USED
90.83
90.4393.15
92.59
93.0
MW4
MW3
92.0 91.0
93.0 92.0
91.0

Tables
Table 1. Water Level Measurements
Lilley International Inc., Williamston, Martin County UST #17011
Top of Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation
Well Well Casing to of to of to of to of to of
Number Depth Elevation Water^Water Water Water Water Water Water Water Water Water
6/16/1997 11/4/1997 2/23/1998 9/28/1998 2/5/1999
MW1 16 100.00 7.75 92.25 8.70 91.30 7.22 92.78 7.61 92.39 7.19 92.81
MW2 16 101.10 8.13 92.97 9.36 91.74 7.65 93.45 8.05 93.05 7.61 93.49
MW3 16 100.36 8.02 92.34 9.10 91.26 7.39 92.97 7.88 92.48 7.4 92.96
MW4*30 100.02 20.89 79.13 17.18 82.84 18.93 81.09 18.71 81.31
MW5 16 99.57 9.44 90.13 8.45 91.12 8.82 90.75 8.51 91.06
MW6 16 99.68 10.01 89.67 8.85 90.83 9.24 90.44 8.87 90.81
MW7 16 100.91 8.79 92.12 6.89 94.02 7.32 93.59 6.83 94.08
MW8 16 100.80 8.40 92.40 6.99 93.81 7.22 93.58 6.85 93.95
MW9 12 97.78 9.09 88.69
Top of Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation
Well Well Casing to of to of to of to of to of
Number Depth Elevation Water Water Water Water Water Water Water Water Water Water
Date 5/19/1999 11/24/1999 5/15/2000 1/4/2001 7/2/2001
MW1 16 100.00 7.58 92.42 6.35 93.65 7.35 92.65 7.99 92.01 7.44 92.56
MW2 16 101.16 8.09 93.01 6.73 94.37 7.79 93.31 8.63 92.53 7.88 93.28
MW3 16 100.37 7.86 92.50 6.64 93.72 7.64 92.72 8.45 91.92 7.65 92.72
MW4*30 100.02 25.41 74.61 23.18 76.84 18.72 81.30 20.95 79.07
MW5 16 99.57 8.73 90.84 7.95 91.62 8.75 90.82 9.33 90.24 8.69 90.88
MW6 16 99.68 9.18 90.50 8.26 91.42 9.15 90.53 9.73 89.95 9.02 90.66
MW7 16 100.91 7.40 93.51 6.04 94.87 7.08 93.83 7.89 93.02
MW8 16 100.80 7.29 93.51 5.98 94.82 7.04 93.76 7.70 93.10
MW9 12 97.78 9.54 88.24 8.53 89.25 9.54 88.24 9.96 87.82
Units are in feet
Elevations are relative to the top of the well casing for MW1
* MW4 is a deep Type III well
^ Water levels in wells MW2 and MW3 on 6/16/97 corrected for the top of casing elevation for MW2 = 101.16 and MW3 = 100.37.
Date
Table 1. Water Level Measurements
Lilley International Inc., Williamston, Martin County UST #17011
Top of Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation
Well Well Casing to of to of to of to of to of
Number Depth Elevation Water Water Water Water Water Water Water Water Water Water
Date 1/7/2002 7/8/2002 1/7/2003 7/3/2003 1/6/2004
MW1 16 100.00 9.21 90.79 8.68 91.32 7.07 92.93 6.83 93.17 6.95 93.05
MW2 16 101.16 9.80 91.36 9.17 91.99 7.48 93.68 7.26 93.90 7.34 93.82
MW3 16 100.37 9.26 91.11 8.78 91.59 7.26 93.11 7.08 93.29 7.17 93.20
MW4*30 100.02
MW5 16 99.57 9.76 89.81 9.22 90.35 8.22 91.35 7.83 91.74 8.08 91.49
MW6 16 99.68 9.73 89.95 9.28 90.40 8.32 91.36 7.89 91.79 8.19 91.49
MW7 16 100.91
MW8 16 100.80
MW9 12 97.78
Top of Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation
Well Well Casing to of to of to of to of to of
Number Depth Elevation Water Water Water Water Water Water Water Water Water Water
Date 7/8/2004 1/6/2005 1/10/2006 1/17/2007
MW1 16 100.00 7.42 92.58 7.96 92.04 7.39 92.61 7.41 92.59 7.12 92.88
MW2 16 101.16 7.87 93.29 8.48 92.68 7.90 93.26 7.90 93.26 7.72 93.44
MW3 16 100.37 7.62 92.75 8.22 92.15 7.62 92.75 7.60 92.77
MW4*30 100.02 18.81 81.21 18.08 81.94
MW5 16 99.57 8.67 90.90 9.12 90.45 8.61 90.96 8.76 90.81 8.43 91.14
MW6 16 99.68 8.83 90.85 9.56 90.12 unable to locate well 9.21 90.47 8.90 90.78
MW7 16 100.91 7.16 93.75 7.79 93.12 7.16 93.75 7.18 93.73 7.05 93.86
MW8 16 100.80 7.11 93.69 7.64 93.16 7.17 93.63 7.09 93.71 6.93 93.87
MW9 12 97.78 8.86 88.92
Units are in feet
Elevations are relative to the top of the well casing for MW1
* MW4 is a deep Type III well
^ Water levels in wells MW2 and MW3 on 6/16/97 corrected for the top of casing elevation for MW2 = 101.16 and MW3 = 100.37.
8/21/2019
LOST
Table 1. Water Level Measurements
Lilley International Inc., Williamston, Martin County UST #17011
Top of Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation
Well Well Casing to of to of to of to of to of
Number Depth Elevation Water Water Water Water Water Water Water Water Water Water
Date 10/21/2019 10/25/2019 11/14/2019
MW1 16 100.00 7.24 92.76 8.32 91.68 7.60 92.40 7.36 92.64 8.72 91.28
MW2 16 101.16 7.77 93.39 8.41 92.75 8.13 93.03 7.98 93.18 8.81 92.35
MW3 16 100.37
MW4*30 100.02 19.93 80.09 17.39 82.63 17.37 82.65 17.16 82.86 17.37 82.65
MW5 16 99.57
MW6 16 99.68 8.96 90.72 10.39 89.29 9.31 90.37 9.06 90.62 10.13 89.55
MW7 16 100.91
MW8 16 100.80
MW9 12 97.78
Top of Depth Elevation Depth Elevation Depth Elevation Depth Elevation Depth Elevation
Well Well Casing to of to of to of to of to of
Number Depth Elevation Water Water Water Water Water Water Water Water Water Water
Date
MW1 16 100.00 7.19 92.81 7.21 92.79 8.33 91.67 7.28 92.72 8.80 91.20
MW2 16 101.16 7.72 93.44 7.76 93.40 8.37 92.79 7.81 93.35 8.72 92.44
MW3 16 100.37
MW4*30 100.02 17.32 82.70 19.09 17.32 17.62 82.40 17.72 82.30 17.84 82.18
MW5 16 99.57 8.46 91.11
MW6 16 99.68 8.94 90.74 9.02 8.94 9.73 89.95 9.08 90.60 9.81 89.87
MW7 16 100.91 7.01 93.90
MW8 16 100.80 6.93 93.87
MW9 12 97.78 8.97 88.81
Units are in feet
Elevations are relative to the top of the well casing for MW1
* MW4 is a deep Type III well
^ Water levels in wells MW2 and MW3 on 6/16/97 corrected for the top of casing elevation for MW2 = 101.16 and MW3 = 100.37.
LOST
7/10/20206/5/2020 7/6/2020
2/10/2020 2/14/2020
3/4/2020
LOST
6/1/2020
Table 1. Water Level Measurements
Lilley International Inc., Williamston, Martin County UST #17011
Top of Depth Elevation Depth Elevation
Well Well Casing to of to of
Number Depth Elevation Water Water Water Water
Date
MW1 16 100.00 7.71 92.29 7.41 92.59
MW2 16 101.16 8.33 92.83 8.01 93.15
MW3 16 100.37
MW4*30 100.02 17.70 82.32
MW5 16 99.57 8.81 90.76 8.74 90.83
MW6 16 99.68 9.37 90.31 9.25 90.43
MW7 16 100.91 7.65 93.26
MW8 16 100.80 7.46 93.34
MW9 12 97.78 9.29 88.49
Units are in feet
Elevations are relative to the top of the well casing for MW1
* MW4 is a deep Type III well
^ Water levels in wells MW2 and MW3 on 6/16/97 corrected for the top of casing elevation for MW2 = 101.16 and MW3 = 100.37.
LOST
9/22/2020 9/30/2021
Table 2. Summary of Groundwater Sample Analytical Results
Lilley International Inc., Williamston, Martin County Incident #: 17011
n-1,2,4-1,3,5-sec-
propyl-trimethyl-trimethyl-styrene butyl-
benzene benzene benzene benzene
1/17/2007 480 5.2 1.9 58 2.0 7.5 62 20 2.8
8/21/2019 680 44 86 190 BRL 59 3.1 6.2 1.5 0.57 0.61 4.1 4.5 0.57 BRL BRL 15 BRL BRL BRL
3/4/2020 290 29 130 110 0.26 J 52 2.5 5.3 0.45 J BRL 0.49 J 3.5 3.5 0.51 BRL 0.54 24 5.5 9.3 BRL
9/22/2020 24 30 9.5 12 J <10 22 <5.0 3.5 J <5.0 <5.0 <5.0 3.2 J 3.4 J <5.0 <5.0 <5.0 74 CCVL, J <50 <10 <5.0
1/17/2007 31 <0.5 <1.5 14 <0.5 5.0 60 5.2 3.7
8/21/2019 370 1700 530 2200 BRL 92 32 90 610 160 BRL 11 6.8 BRL 3.7 3.8 BRL BRL BRL BRL
3/4/2020 1000 2800 390 1800 BRL 86 28 100 650 170 BRL 18 8.9 BRL 6.0 5.1 BRL BRL BRL BRL
9/22/2020 62 120 99 230 <10 12 7.9 29 200 39 <5.0 6.3 3.8 J <5.0 <5.0 <5.0 <100 <50 <10 <5.0
MW3 8/28/2019
1/4/2001 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
8/28/2019 1.7 0.38 J BRL BRL BRL BRL BRL BRL 0.35 J BRL BRL BRL BRL BRL BRL 0.7 BRL BRL BRL BRL
3/4/2020 1.6 0.24 J BRL BRL BRL 0.48 J BRL BRL 0.33 J BRL BRL BRL BRL BRL BRL 0.5 BRL BRL BRL BRL
9/22/2020 1.4 <0.50 <0.50 <1.5 <1.0 0.49 J <0.5 <0.5 0.29 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 0.40 J 10 CCLV <5.0 <1.0 <0.5
1/6/2005 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
8/28/2019 1.0 0.45 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 4.0 J BRL BRL BRL
3/4/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 8.5 J BRL BRL BRL
9/22/2020 <0.5 <0.5 <0.5 <1.5 <1.0 <1.0 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <10 <5.0 <1.0 <0.5
1/6/2005 0.9 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
8/28/2019 10,000 22,000 2,100 10,000 BRL 490 73 190 1,400 340 BRL BRL 6.3 BRL 4.1 90 170 120 BRL BRL
10/21/2019 7,600 13,000 1,900 8,600 BRL 260 52 160 1,200 250 BRL 9.2 6.8 BRL 2.9 J 79 130 BRL BRL BRL
11/14/2019 6,300 16,000 1,400 6,100 BRL 220 48 J 130 880 200 BRL BRL BRL BRL BRL 63 BRL BRL BRL BRL
2/10/2020 7,300 20,000 2,100 10,000 BRL 290 66 190 1,400 300 BRL 23 BRL BRL BRL 95 BRL BRL BRL BRL
3/4/2020 7,500 20,000 1,600 7,500 BRL 360 51 140 1,000 250 BRL BRL BRL BRL BRL 90 BRL BRL BRL BRL
5/4/2020 6,900 21,000 2,100 9,600 <4.2 330 79 220 1,500 360 <4.7 <7.6 <7.6 <8.8 <8.9 70 <31 <24 <7.6 <9.8
6/24/2020 7,200 19,000 1,900 8,000 <4.2 250 59 180 1,200 300 <4.7 <7.6 <7.6 <8.8 <8.9 56 <31 <24 <7.6 <9.8
7/24/20202 6,600 19,000 1,900 8,800 <4.2 340 64 200 1,400 350 <4.7 <7.6 <7.6 <8.8 <8.9 38 J <31 <24 <7.6 <9.8
9/22/20203 6,700 19,000 2,000 9,700 <4.2 280 67 190 1,400 330 <4.7 <7.6 <7.6 <8.8 <8.9 32 J <31 <24 <7.6 <9.8
9/30/20214 2,600 6,800 2,300 7,200 <14 300 81 230 1,400 370 <22 <18 <20 <92 <8.9 <50 <180 <71 <7.8 <22
1/6/2005 0.69 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
8/28/2019 360 640 33 470 BRL 4.6 0.77 1.5 47 19 BRL BRL BRL BRL 0.58 2.4 9.4 J BRL 3.7 BRL
3/4/2020 46 24 8.0 29 BRL 2.2 1.2 3.4 28 2.1 BRL 1.2 0.44 J BRL BRL BRL BRL BRL BRL BRL
9/22/2020 12 2.2 6.5 25 <1.0 0.89 J 1.2 2.2 5.0 1.2 <0.5 0.36 J 0.20 J <0.5 <0.5 <0.5 6.0 CCVL, J <5.0 <1.0 <0.5
1/6/2005 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
8/28/2019 0.32 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 22 2.0 J 0.39 J BRL
3/4/2020 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL
9/22/2020 <0.5 <0.5 <0.5 <1.5 <1.0 0.27 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <10 <5.0 <1.0 <0.5
1/4/2001 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5
8/28/2019 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.67
3/4/20201 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.5
9/22/2020 <0.5 <0.5 <0.5 <1.5 <1.0 0.25 J <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <0.5 <10 <5.0 <1.0 1.0
2L Standard (ug/L)1.0 600 600 500 20 6.0 70 70 350 350 70 70 70 70 25 70 6,000 4,000 100 0.7
5,000 260,000 84,500 85,500 20,000 6,000 25,000 30,000 28,500 25,000 70,000 6,900 8,500 15,000 11,700 70,000 6,000,000 4,000,000 100,000 700
Analytical concentrations shown are expressed in micrograms per kilogram (µg/kg), which is equivalent to parts per billion (ppb)CCVL = estimated; below control limits but within method parameters
Bold = Concetrations above detecatble limits Gray Shaded = Concentrations above 2L Groundwater standards Red Shaded = Concentrations above GCL 1 3/4/2020 - Chloroform = 0.24 J 39/22/2020 - Methyl Butyl Ketone = 30 J
BRL= Below Reporting Limit GCLs - Gross Contaminant Levels J = Detected but below the Reporting Limit 27/24/2020 - Ethanol = 3300 J
methy-isobutyl-
ketone
tert-butyl-
benzene
MW2
naph-
thalene
ethyl-
benzene
total
xylenes
methyl-tert-butyl-
ether
benzeneSample
ID
Date
Collected
MW1
methy-ethyl-
ketone
MW6
tetra-chloro-
ethene
EPA METHOD 6200B
Permanantly lost/underneath building addition
GCLs
MW5
MW8
MW9
MW7
n-butyl
benzene
4-isopropyl-
toluene
acetoneisopropyl
ether
MW4
iso-propyl-
benzenetoluene

Attachment 1

TECHNICAL METHODS AND STANDARD PROCEDURES

I. WATER-LEVEL MEASUREMENTS
Depths to water within wells were measured with an electronic water level indicator that is
accurate to within 0.01 feet. Standard practice is to measure the water level soon after the well
plug is removed, and then re-measure the water levels after an adequate period of time has
elapsed and the water level has equilibrated. If consecutive measurements do not correspond
to within 0.01 feet, it is standard practice to continue collecting water-level measurements until
equilibration has occurred.

II. WELL PURGING AND COLLECTION OF GROUNDWATER SAMPLES
The monitoring wells were purged of three well volumes prior to groundwater sampling using
decontaminated, disposable bailers and new vinyl rope. Fresh, disposable vinyl gloves were
worn during purging and sampling of the well. The groundwater samples were collected
immediately in order to minimize the loss of volatile compounds.

Groundwater samples were collected in individual, disposable bailers and subsequently
transferred to 1 Liter glass jars. The groundwater samples were added slowly to the vials to
minimize the loss of volatile compounds. Standard procedure for the EPA Method 625 and
MADEP Method EPH analysis is to collect two groundwater samples per analytical method from
the well. All sample containers were stored in plastic Ziploc® bags and were immediately
placed in a cooler with ice. Samples were shipped to delivered to a North Carolina certified
laboratory for analysis under chain-of-custody protocol.

Attachment 2

Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the
analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.

10/14/2021
GMA - Greenville Katie Hackney
4300 Sapphire Court, Suite 100 Greenville, NC, 27834
Ref: Analytical Testing
Lab Report Number: 21-278-0009 Client Project Description: 57401
Dear Katie Hackney:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 10/5/2021 for the analyses presented in the
following report.
The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method.
The analytical data has been validated using standard quality control measures performed as required by the
analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136
Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time.
Refer to sample analysis time for confirmation of holding time compliance.
The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to
the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely,
Angela D Overcash Senior Project Manager
Page 1 of 16
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202237735State ProgramNorth Carolina
12/31/2021402State ProgramNorth Carolina
07/31/202299012State ProgramSouth Carolina
12/31/202199012State ProgramSouth Carolina
Page 1 of 1 00016/21-278-0009
Page 2 of 16
Report Number:
Sample Summary Table
Client Project Description:
21-278-0009
57401
Lab No Client Sample ID Matrix Date Collected Date Received
09/30/2021 10:45Aqueous 89125 MW-6 10/05/2021
Page 3 of 16
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
21-278-0009
Report Limit
Project:57401
V 89125MW-6
2550 10/13/2021 16:476200BBenzeneµg/L 18.0
2270 10/13/2021 16:476200BEthylbenzeneµg/L 17.0
80.6 10/13/2021 16:476200BIsopropylbenzeneµg/L 18.0
295 10/13/2021 16:476200BNaphthaleneµg/L 47.0
233 10/13/2021 16:476200Bn-Propylbenzene µg/L 19.0
6820 10/13/2021 16:476200BTolueneµg/L 22.0
1430 10/13/2021 16:476200B1,2,4-Trimethylbenzene µg/L 19.0
371 10/13/2021 16:476200B1,3,5-Trimethylbenzene µg/L 18.0
3250 10/13/2021 16:476200Bo-Xylene µg/L 21.0
3970 10/13/2021 16:476200Bm,p-Xylene µg/L 42.0
7220 10/13/2021 16:476200BXylene (Total)µg/L 21.0
Page 4 of 16
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27834
21-278-0009
01098
GMA - Greenville
4300 Sapphire Court, Suite 100
Katie Hackney
Greenville
Received : 10/05/2021
57401
Report Date : 10/14/2021
Sample ID :
Lab No :
Sampled:MW-6
89125 Matrix:
9/30/2021 10:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V10166 10/13/21 09:00
<180 µg/L 180 1000Acetone 100 10/13/21 16:47 V10167JLB
2550 µg/L 18.0 50.0Benzene 100 10/13/21 16:47 V10167JLB
<21.0 µg/L 21.0 50.0Bromobenzene 100 10/13/21 16:47 V10167JLB
<42.0 µg/L 42.0 100Bromochloromethane 100 10/13/21 16:47 V10167JLB
<16.0 µg/L 16.0 50.0Bromodichloromethane 100 10/13/21 16:47 V10167JLB
<150 µg/L 150 500Bromoform 100 10/13/21 16:47 V10167JLB
<28.0 µg/L 28.0 100Bromomethane 100 10/13/21 16:47 V10167JLB
<18.0 µg/L 18.0 50.0n-Butylbenzene 100 10/13/21 16:47 V10167JLB
<20.0 µg/L 20.0 50.0
sec-Butyl benzene 100 10/13/21 16:47 V10167JLB
<92.0 µg/L 92.0 200tert-Butyl benzene 100 10/13/21 16:47 V10167JLB
<18.0 µg/L 18.0 50.0Carbon Tetrachloride 100 10/13/21 16:47 V10167JLB
<19.0 µg/L 19.0 50.0Chlorobenzene 100 10/13/21 16:47 V10167JLB
<19.0 µg/L 19.0 50.0Chlorodibromomethane 100 10/13/21 16:47 V10167JLB
<43.0 µg/L 43.0 100Chloroethane 100 10/13/21 16:47 V10167JLB
<22.0 µg/L 22.0 50.0Chloroform 100 10/13/21 16:47 V10167JLB
<22.0 µg/L 22.0 50.0
Chloromethane 100 10/13/21 16:47 V10167JLB
<20.0 µg/L 20.0 50.02-Chlorotoluene 100 10/13/21 16:47 V10167JLB
<20.0 µg/L 20.0 50.04-Chlorotoluene 100 10/13/21 16:47 V10167JLB
<50.0 µg/L 50.0 50.0Di-Isopropyl Ether (DIPE)100 10/13/21 16:47 V10167JLB
<110 µg/L 110 2001,2-Dibromo-3-Chloropropane 100 10/13/21 16:47 V10167JLB
<20.0 µg/L 20.0 50.01,2-Dibromoethane 100 10/13/21 16:47 V10167JLB
<23.0 µg/L 23.0 50.0Dibromomethane 100 10/13/21 16:47 V10167JLB
Qualifiers/
Definitions
Method Quantitation LimitMQLDilution FactorDF
Page 5 of 16
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27834
21-278-0009
01098
GMA - Greenville
4300 Sapphire Court, Suite 100
Katie Hackney
Greenville
Received : 10/05/2021
57401
Report Date : 10/14/2021
Sample ID :
Lab No :
Sampled:MW-6
89125 Matrix:
9/30/2021 10:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V10166 10/13/21 09:00
<22.0 µg/L 22.0 50.01,2-Dichlorobenzene 100 10/13/21 16:47 V10167JLB
<19.0 µg/L 19.0 50.01,3-Dichlorobenzene 100 10/13/21 16:47 V10167JLB
<21.0 µg/L 21.0 50.01,4-Dichlorobenzene 100 10/13/21 16:47 V10167JLB
<120 µg/L 120 500Dichlorodifluoromethane 100 10/13/21 16:47 V10167JLB
<24.0 µg/L 24.0 50.01,1-Dichloroethane 100 10/13/21 16:47 V10167JLB
<15.0 µg/L 15.0 50.01,2-Dichloroethane 100 10/13/21 16:47 V10167JLB
<15.0 µg/L 15.0 50.01,1-Dichloroethene 100 10/13/21 16:47 V10167JLB
<20.0 µg/L 20.0 50.0cis-1,2-Dichloroethene 100 10/13/21 16:47 V10167JLB
<18.0 µg/L 18.0 50.0
trans-1,2-Dichloroethene 100 10/13/21 16:47 V10167JLB
<19.0 µg/L 19.0 50.01,2-Dichloropropane 100 10/13/21 16:47 V10167JLB
<13.0 µg/L 13.0 50.01,3-Dichloropropane 100 10/13/21 16:47 V10167JLB
<21.0 µg/L 21.0 2002,2-Dichloropropane 100 10/13/21 16:47 V10167JLB
<20.0 µg/L 20.0 50.01,1-Dichloropropene 100 10/13/21 16:47 V10167JLB
<21.0 µg/L 21.0 50.0cis-1,3-Dichloropropene 100 10/13/21 16:47 V10167JLB
<15.0 µg/L 15.0 50.0trans-1,3-Dichloropropene 100 10/13/21 16:47 V10167JLB
<4200 µg/L 4200 20000
Ethanol 100 10/13/21 16:47 V10167JLB
2270 µg/L 17.0 50.0Ethylbenzene 100 10/13/21 16:47 V10167JLB
<35.0 µg/L 35.0 300Hexachlorobutadiene 100 10/13/21 16:47 V10167JLB
<38.0 µg/L 38.0 1002-Hexanone 100 10/13/21 16:47 V10167JLB
80.6 µg/L 18.0 50.0Isopropylbenzene 100 10/13/21 16:47 V10167JLB
<8.90 µg/L 8.90 50.04-Isopropyl toluene 100 10/13/21 16:47 V10167JLB
<71.0 µg/L 71.0 500Methyl Ethyl Ketone (MEK)100 10/13/21 16:47 V10167JLB
Qualifiers/
Definitions
Method Quantitation LimitMQLDilution FactorDF
Page 6 of 16
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27834
21-278-0009
01098
GMA - Greenville
4300 Sapphire Court, Suite 100
Katie Hackney
Greenville
Received : 10/05/2021
57401
Report Date : 10/14/2021
Sample ID :
Lab No :
Sampled:MW-6
89125 Matrix:
9/30/2021 10:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V10166 10/13/21 09:00
<14.0 µg/L 14.0 100Methyl tert-butyl ether (MTBE)100 10/13/21 16:47 V10167JLB
<7.80 µg/L 7.80 1004-Methyl-2-Pentanone 100 10/13/21 16:47 V10167JLB
<33.0 µg/L 33.0 200Methylene Chloride 100 10/13/21 16:47 V10167JLB
295 µg/L 47.0 100Naphthalene 100 10/13/21 16:47 V10167JLB
233 µg/L 19.0 50.0n-Propylbenzene 100 10/13/21 16:47 V10167JLB
<22.0 µg/L 22.0 50.0Styrene 100 10/13/21 16:47 V10167JLB
<16.0 µg/L 16.0 50.01,1,1,2-Tetrachloroethane 100 10/13/21 16:47 V10167JLB
<16.0 µg/L 16.0 50.01,1,2,2-Tetrachloroethane 100 10/13/21 16:47 V10167JLB
<22.0 µg/L 22.0 50.0
Tetrachloroethene 100 10/13/21 16:47 V10167JLB
6820 µg/L 22.0 50.0Toluene 100 10/13/21 16:47 V10167JLB
<38.0 µg/L 38.0 50.01,2,3-Trichlorobenzene 100 10/13/21 16:47 V10167JLB
<31.0 µg/L 31.0 50.01,2,4-Trichlorobenzene 100 10/13/21 16:47 V10167JLB
<16.0 µg/L 16.0 50.01,1,1-Trichloroethane 100 10/13/21 16:47 V10167JLB
<9.60 µg/L 9.60 50.01,1,2-Trichloroethane 100 10/13/21 16:47 V10167JLB
<18.0 µg/L 18.0 50.0Trichloroethene 100 10/13/21 16:47 V10167JLB
<18.0 µg/L 18.0 50.0
Trichlorofluoromethane 100 10/13/21 16:47 V10167JLB
<27.0 µg/L 27.0 50.01,2,3-Trichloropropane 100 10/13/21 16:47 V10167JLB
1430 µg/L 19.0 50.01,2,4-Trimethylbenzene 100 10/13/21 16:47 V10167JLB
371 µg/L 18.0 50.01,3,5-Trimethylbenzene 100 10/13/21 16:47 V10167JLB
<100 µg/L 100 500Vinyl Acetate 100 10/13/21 16:47 V10167JLB
<17.0 µg/L 17.0 50.0Vinyl Chloride 100 10/13/21 16:47 V10167JLB
3250 µg/L 21.0 50.0o-Xylene 100 10/13/21 16:47 V10167JLB
Qualifiers/
Definitions
Method Quantitation LimitMQLDilution FactorDF
Page 7 of 16
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27834
21-278-0009
01098
GMA - Greenville
4300 Sapphire Court, Suite 100
Katie Hackney
Greenville
Received : 10/05/2021
57401
Report Date : 10/14/2021
Sample ID :
Lab No :
Sampled:MW-6
89125 Matrix:
9/30/2021 10:45
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
6200 PT
6200B Prep Batch(es):V10166 10/13/21 09:00
3970 µg/L 42.0 100m,p-Xylene 100 10/13/21 16:47 V10167JLB
7220 µg/L 21.0 50.0Xylene (Total)100 10/13/21 16:47 V10167
Surrogate: 4-Bromofluorobenzene 99.2 Limits: 70-130%10/13/21 16:47100 JLB V10167
Surrogate: Dibromofluoromethane 97.6 Limits: 70-130%10/13/21 16:47100 JLB V10167
Surrogate: 1,2-Dichloroethane - d4 94.2 Limits: 70-130%10/13/21 16:47100 JLB V10167
Surrogate: Toluene-d8 94.0 Limits: 70-130%10/13/21 16:47100 JLB V10167
Qualifiers/
Definitions
Method Quantitation LimitMQLDilution FactorDF
Page 8 of 16
Quality Control Data
21-278-0009Report No:
Project Description:
Client ID:GMA - Greenville
57401
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V10167QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V10166
Associated Lab Samples: 89125
LRB-V10166 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
10/13/21 12:5510.01.80<1.80µg/LAcetone
10/13/21 12:550.5000.180<0.180µg/LBenzene
10/13/21 12:550.5000.210<0.210µg/LBromobenzene
10/13/21 12:551.000.420<0.420µg/LBromochloromethane
10/13/21 12:550.5000.160<0.160µg/LBromodichloromethane
10/13/21 12:555.001.50<1.50µg/LBromoform
10/13/21 12:551.000.280<0.280µg/LBromomethane
10/13/21 12:550.5000.180<0.180µg/Ln-Butylbenzene
10/13/21 12:550.5000.200<0.200µg/Lsec-Butyl benzene
10/13/21 12:552.000.920<0.920µg/Ltert-Butyl benzene
10/13/21 12:550.5000.180<0.180µg/LCarbon Tetrachloride
10/13/21 12:550.5000.190<0.190µg/LChlorobenzene
10/13/21 12:550.5000.190<0.190µg/LChlorodibromomethane
10/13/21 12:551.000.430<0.430µg/LChloroethane
10/13/21 12:550.5000.220<0.220µg/LChloroform
10/13/21 12:550.5000.220<0.220µg/LChloromethane
10/13/21 12:550.5000.200<0.200µg/L2-Chlorotoluene
10/13/21 12:550.5000.200<0.200µg/L4-Chlorotoluene
10/13/21 12:550.5000.500<0.500µg/LDi-Isopropyl Ether (DIPE)
10/13/21 12:552.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane
10/13/21 12:550.5000.200<0.200µg/L1,2-Dibromoethane
10/13/21 12:550.5000.230<0.230µg/LDibromomethane
10/13/21 12:550.5000.220<0.220µg/L1,2-Dichlorobenzene
10/13/21 12:550.5000.190<0.190µg/L1,3-Dichlorobenzene
10/13/21 12:550.5000.210<0.210µg/L1,4-Dichlorobenzene
10/13/21 12:555.001.20<1.20µg/LDichlorodifluoromethane
10/13/21 12:550.5000.240<0.240µg/L1,1-Dichloroethane
Page 1 of 6Date:10/14/2021 01:37 PM
Page 9 of 16
Quality Control Data
21-278-0009Report No:
Project Description:
Client ID:GMA - Greenville
57401
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V10167QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V10166
Associated Lab Samples: 89125
LRB-V10166 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
10/13/21 12:550.5000.150<0.150µg/L1,2-Dichloroethane
10/13/21 12:550.5000.150<0.150µg/L1,1-Dichloroethene
10/13/21 12:550.5000.200<0.200µg/Lcis-1,2-Dichloroethene
10/13/21 12:550.5000.180<0.180µg/Ltrans-1,2-Dichloroethene
10/13/21 12:550.5000.190<0.190µg/L1,2-Dichloropropane
10/13/21 12:550.5000.130<0.130µg/L1,3-Dichloropropane
10/13/21 12:552.000.210<0.210µg/L2,2-Dichloropropane
10/13/21 12:550.5000.200<0.200µg/L1,1-Dichloropropene
10/13/21 12:550.5000.210<0.210µg/Lcis-1,3-Dichloropropene
10/13/21 12:550.5000.150<0.150µg/Ltrans-1,3-Dichloropropene
10/13/21 12:5520042.0<42.0µg/LEthanol
10/13/21 12:550.5000.170<0.170µg/LEthylbenzene
10/13/21 12:553.000.350<0.350µg/LHexachlorobutadiene
10/13/21 12:551.000.380<0.380µg/L2-Hexanone
10/13/21 12:550.5000.180<0.180µg/LIsopropylbenzene
10/13/21 12:550.5000.089<0.089µg/L4-Isopropyl toluene
10/13/21 12:555.000.710<0.710µg/LMethyl Ethyl Ketone (MEK)
10/13/21 12:551.000.140<0.140µg/LMethyl tert-butyl ether (MTBE)
10/13/21 12:551.000.078<0.078µg/L4-Methyl-2-Pentanone
10/13/21 12:552.000.330<0.330µg/LMethylene Chloride
10/13/21 12:551.000.470<0.470µg/LNaphthalene
10/13/21 12:550.5000.190<0.190µg/Ln-Propylbenzene
10/13/21 12:550.5000.220<0.220µg/LStyrene
10/13/21 12:550.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane
10/13/21 12:550.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane
10/13/21 12:550.5000.220<0.220µg/LTetrachloroethene
10/13/21 12:550.5000.220<0.220µg/LToluene
Page 2 of 6Date:10/14/2021 01:37 PM
Page 10 of 16
Quality Control Data
21-278-0009Report No:
Project Description:
Client ID:GMA - Greenville
57401
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V10167QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V10166
Associated Lab Samples: 89125
LRB-V10166 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
10/13/21 12:550.5000.380<0.380µg/L1,2,3-Trichlorobenzene
10/13/21 12:550.5000.310<0.310µg/L1,2,4-Trichlorobenzene
10/13/21 12:550.5000.160<0.160µg/L1,1,1-Trichloroethane
10/13/21 12:550.5000.096<0.096µg/L1,1,2-Trichloroethane
10/13/21 12:550.5000.180<0.180µg/LTrichloroethene
10/13/21 12:550.5000.180<0.180µg/LTrichlorofluoromethane
10/13/21 12:550.5000.270<0.270µg/L1,2,3-Trichloropropane
10/13/21 12:550.5000.190<0.190µg/L1,2,4-Trimethylbenzene
10/13/21 12:550.5000.180<0.180µg/L1,3,5-Trimethylbenzene
10/13/21 12:555.001.00<1.00µg/LVinyl Acetate
10/13/21 12:550.5000.170<0.170µg/LVinyl Chloride
10/13/21 12:550.5000.210<0.210µg/Lo-Xylene
10/13/21 12:551.000.420<0.420µg/Lm,p-Xylene
10/13/21 12:554-Bromofluorobenzene (S)102 70-130
10/13/21 12:55Dibromofluoromethane (S)97.4 70-130
10/13/21 12:551,2-Dichloroethane - d4 (S)93.6 70-130
10/13/21 12:55Toluene-d8 (S)94.2 70-130
LCS-V10166 LCSD-V10166Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
33.3 83.282.733.140.0µg/LAcetone 40-160 0.6 20.0
21.7 10911422.720.0µg/LBenzene 70-130 4.5 20.0
19.6 98.010120.120.0µg/LBromobenzene 70-130 2.5 20.0
22.0 11011823.620.0µg/LBromochloromethane 70-130 7.0 20.0
21.4 10711122.120.0µg/LBromodichloromethane 70-130 3.2 20.0
Page 3 of 6Date:10/14/2021 01:37 PM
Page 11 of 16
Quality Control Data
21-278-0009Report No:
Project Description:
Client ID:GMA - Greenville
57401
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V10167QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V10166
LCS-V10166 LCSD-V10166Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.1 10199.519.920.0µg/LBromoform 70-130 1.0 20.0
19.1 95.510520.920.0µg/LBromomethane 60-140 9.0 20.0
20.2 10110721.420.0µg/Ln-Butylbenzene 70-130 5.7 20.0
19.8 99.010520.920.0µg/Lsec-Butyl benzene 70-130 5.4 20.0
19.8 99.010120.220.0µg/Ltert-Butyl benzene 70-130 2.0 20.0
21.3 10711322.620.0µg/LCarbon Tetrachloride 70-130 5.9 20.0
20.6 10310821.620.0µg/LChlorobenzene 70-130 4.7 20.0
19.9 99.510320.620.0µg/LChlorodibromomethane 70-130 3.4 20.0
20.8 10411021.920.0µg/LChloroethane 60-140 5.1 20.0
20.9 10510921.720.0µg/LChloroform 70-130 3.7 20.0
19.3 96.591.018.220.0µg/LChloromethane 60-140 5.8 20.0
19.7 98.510120.120.0µg/L2-Chlorotoluene 70-130 2.0 20.0
19.9 99.510120.220.0µg/L4-Chlorotoluene 70-130 1.4 20.0
21.2 10611022.020.0µg/LDi-Isopropyl Ether (DIPE)70-130 3.7 20.0
19.6 98.010120.120.0µg/L1,2-Dibromo-3-Chloropropane 70-130 2.5 20.0
20.5 10310521.020.0µg/L1,2-Dibromoethane 70-130 2.4 20.0
21.7 10911122.120.0µg/LDibromomethane 70-130 1.8 20.0
20.0 10010120.120.0µg/L1,2-Dichlorobenzene 70-130 0.4 20.0
19.2 96.099.019.820.0µg/L1,3-Dichlorobenzene 70-130 3.0 20.0
19.6 98.099.019.820.0µg/L1,4-Dichlorobenzene 70-130 1.0 20.0
22.6 11311923.720.0µg/LDichlorodifluoromethane 60-140 4.7 20.0
21.2 10611022.020.0µg/L1,1-Dichloroethane 70-130 3.7 20.0
20.7 10410821.520.0µg/L1,2-Dichloroethane 70-130 3.7 20.0
21.0 10510921.820.0µg/L1,1-Dichloroethene 70-130 3.7 20.0
21.3 10710921.820.0µg/Lcis-1,2-Dichloroethene 70-130 2.3 20.0
21.5 10811222.420.0µg/Ltrans-1,2-Dichloroethene 70-130 4.1 20.0
Page 4 of 6Date:10/14/2021 01:37 PM
Page 12 of 16
Quality Control Data
21-278-0009Report No:
Project Description:
Client ID:GMA - Greenville
57401
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V10167QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V10166
LCS-V10166 LCSD-V10166Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
21.3 10711322.520.0µg/L1,2-Dichloropropane 70-130 5.4 20.0
20.1 10110220.420.0µg/L1,3-Dichloropropane 70-130 1.4 20.0
21.9 11012224.420.0µg/L2,2-Dichloropropane 70-130 10.7 20.0
21.3 10711222.320.0µg/L1,1-Dichloropropene 70-130 4.5 20.0
21.3 10711122.220.0µg/Lcis-1,3-Dichloropropene 70-130 4.1 20.0
22.5 11311623.120.0µg/Ltrans-1,3-Dichloropropene 70-130 2.6 20.0
644 129122612500µg/LEthanol 60-140 5.0 20.0
20.6 10310721.320.0µg/LEthylbenzene 70-130 3.3 20.0
21.1 10610921.720.0µg/LHexachlorobutadiene 70-130 2.8 20.0
19.4 97.098.019.620.0µg/L2-Hexanone 60-140 1.0 20.0
19.8 99.010320.520.0µg/LIsopropylbenzene 70-130 3.4 20.0
19.7 98.510320.520.0µg/L4-Isopropyl toluene 70-130 3.9 20.0
18.5 92.592.018.420.0µg/LMethyl Ethyl Ketone (MEK)60-140 0.5 20.0
21.6 10811322.520.0µg/LMethyl tert-butyl ether (MTBE)70-130 4.0 20.0
20.9 10510821.620.0µg/L4-Methyl-2-Pentanone 60-140 3.2 20.0
20.1 10110420.820.0µg/LMethylene Chloride 70-130 3.4 20.0
23.5 11811723.420.0µg/LNaphthalene 70-130 0.4 20.0
20.1 10110420.820.0µg/Ln-Propylbenzene 70-130 3.4 20.0
20.6 10310621.120.0µg/LStyrene 70-130 2.3 20.0
20.4 10210721.320.0µg/L1,1,1,2-Tetrachloroethane 70-130 4.3 20.0
19.5 97.510020.020.0µg/L1,1,2,2-Tetrachloroethane 70-130 2.5 20.0
20.2 10110621.220.0µg/LTetrachloroethene 70-130 4.8 20.0
21.7 10911322.520.0µg/LToluene 70-130 3.6 20.0
24.8 12412424.820.0µg/L1,2,3-Trichlorobenzene 70-130 0.0 20.0
22.4 11211022.020.0µg/L1,2,4-Trichlorobenzene 70-130 1.8 20.0
21.4 10711322.620.0µg/L1,1,1-Trichloroethane 70-130 5.4 20.0
Page 5 of 6Date:10/14/2021 01:37 PM
Page 13 of 16
Quality Control Data
21-278-0009Report No:
Project Description:
Client ID:GMA - Greenville
57401
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
6200B
V10167QC Analytical Batch(es):
Analysis Method:
Analysis Description:
6200 PT
QC Prep:V10166
LCS-V10166 LCSD-V10166Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
21.8 10911022.020.0µg/L1,1,2-Trichloroethane 70-130 0.9 20.0
21.7 10911222.420.0µg/LTrichloroethene 70-130 3.1 20.0
22.6 11312023.920.0µg/LTrichlorofluoromethane 60-140 5.5 20.0
19.3 96.597.519.520.0µg/L1,2,3-Trichloropropane 70-130 1.0 20.0
20.2 10110320.620.0µg/L1,2,4-Trimethylbenzene 70-130 1.9 20.0
20.1 10110320.520.0µg/L1,3,5-Trimethylbenzene 70-130 1.9 20.0
22.3 11211923.720.0µg/LVinyl Acetate 60-140 6.0 20.0
22.0 11011322.520.0µg/LVinyl Chloride 60-140 2.2 20.0
20.5 10310521.020.0µg/Lo-Xylene 70-130 2.4 20.0
42.9 10711144.540.0µg/Lm,p-Xylene 70-130 3.6 20.0
98.697.24-Bromofluorobenzene (S)70-130
97.499.0Dibromofluoromethane (S)70-130
97.098.81,2-Dichloroethane - d4 (S)70-130
93.093.8Toluene-d8 (S)70-130
Page 6 of 6Date:10/14/2021 01:37 PM
Page 14 of 16
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:21-278-0009
GMA - Greenville
01098
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT-15 5.8C
Chain of Custody (COC) present?Yes No
Yes No Not Present
Yes No Not Present
Yes No
COC agrees with sample label(s)? Yes No
COC properly completed
Samples in proper containers?
Sample containers intact?
Sufficient sample volume for indicated test(s)?
All samples received within holding time?
Cooler temperature in compliance?
Yes No
Yes No
Yes No
Yes No
Yes No
Yes NoCooler/Samples arrived at the laboratory on ice.
Samples were considered acceptable as cooling
process had begun.
Yes No
Yes No N/A
Yes No N/A
Yes No N/ASoil VOA method 5035 – compliance criteria met
Water - Sample containers properly preserved
Water - VOA vials free of headspace Yes No N/A
Trip Blanks received with VOAs
Low concentration EnCore samplers (48 hr)
High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d)
High concentration container (48 hr)
Custody seals intact on shipping container/cooler?
Custody seals intact on sample bottles?
Number of coolers/boxes received
Yes No
1
Signature:Sarah J. Locklear Date & Time:10/05/2021 10:57:12
Special precautions or instructions included?
Comments:
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