WS-3391_10366_CA_MRP_20230804

Confidential and Privileged
20221873.001A | RAL23R156786 August 4, 2023
© 2023 Kleinfelder www.kleinfelder.com
KLEINFELDER 3200 Gateway Centre Blvd. Suite 100, Morrisville, NC 27560 p | 919.755.5011
August 4, 2023
Kleinfelder File No. RAL23R156785
Mr. Shannon Owen
General Manager
Valley Proteins - Fayetteville
1309 Industrial Drive
Fayetteville, NC 28301
SUBJECT: ANNUAL GROUNDWATER MONITORING REPORT
CHEMOL COMPANY, INC.
2410 RANDOLPH AVENUE
GREENSBORO, NORTH CAROLINA
GROUNDWATER INCIDENT NO. 10366
KLEINFELDER PROJECT NO. 20221873.001A
Dear Mr. Owen:
Kleinfelder, Inc. is pleased to provide its report summarizing the results of the annual groundwater
sampling event at the referenced site. A copy of this report has been forwarded to the North
Carolina Department of Environmental Quality (NCDEQ)/Guilford County Department of
Environmental Health.
Kleinfelder appreciates the opportunity to be of service to you. Should you have questions or
require additional information, please do not hesitate to contact the undersigned.
Sincerely,
KLEINFELDER, INC.
Adam Mahr Michael J. Burns, PG
Environmental Staff Professional Environmental Program Manager
EDA/MJB: das
Enclosure
Cc: Matt Haynes, Distr. Env. Mgr. w/enc.
Received: 8/16/2023
Confidential and Privileged

20221873.001A | RAL23R156786 August 4, 2023
© 2023 Kleinfelder www.kleinfelder.com

ANNUAL GROUNDWATER MONITORING REPORT
CHEMOL COMPANY, INC.
GREENSBORO, NORTH CAROLINA
INCIDENT NUMBER 10366

KLEINFELDER PROJECT NO. 20221873.001A

August 4, 2023

Copyright 2023 Kleinfelder
All Rights Reserved

ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC
PROJECT FOR WHICH THIS REPORT WAS PREPARED.
Confidential and Privileged

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© 2023 Kleinfelder www.kleinfelder.com

A Report Prepared for:

Mr. Shannon Owen
General Manager
Valley Proteins - Fayetteville
1309 Industrial Drive
Fayetteville, NC 28301

ANNUAL GROUNDWATER MONITORING REPORT
CHEMOL COMPANY, INC.
GREENSBORO, NORTH CAROLINA
INCIDENT NUMBER 10366

Prepared by:

Adam Mahr
Environmental Staff Professional

Reviewed by:

Michael J. Burns, PG
Environmental Program Manager

KLEINFELDER, INC.
3200 Gateway Centre Blvd. | Suite 100
Morrisville, NC 27560
Phone: [phone]

August 4, 2023

Kleinfelder Project No. 20221873.001A

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© 2023 Kleinfelder www.kleinfelder.com
ANNUAL GROUNDWATER MONITORING REPORT
CHEMOL COMPANY, INC.

Site Name: Chemol Company, Inc.

Site Location: 2410 Randolph Avenue
Greensboro, North Carolina

Groundwater Incident No.: 10366

Facility I.D. Number: 0-016924

Latitude/Longitude: 36o 02’ 35” N, 79o 47’ 08” W

Date of Report: August 4, 2023

Property Occupant: Chemol Company, Inc.
Post Office Box 16286
Greensboro, North Carolina 27416
Contact: Mr. Mark Heimberger
Phone: [phone]

Property Owner: Valley Proteins, Inc. - Carolina By-Products
Post Office Box 3588
Winchester, Virginia 22604
Phone: [phone]

Consultant: Kleinfelder, Inc.
3200 Gateway Centre Blvd. | Suite 100
Morrisville, NC 27560
Attn: Mr. Michael J. Burns, PG
Phone: [phone]

SEAL AND SIGNATURE OF CERTIFYING LICENSED GEOLOGIST

I, Michael J. Burns, a Licensed Geologist for Kleinfelder, Inc., do certify that the information
contained in this report is correct and accurate to the best of my knowledge.

________________________________________________
Michael J. Burns, PG
North Carolina License No. 1645

Kleinfelder, Inc. is licensed to practice Geology, Certification Number C-521 and
Engineering, Certification Number F-1312 in North Carolina

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TABLE OF CONTENTS

1 BACKGROUND ................................................................................................... 1
2 FIELD ACTIVITIES .............................................................................................. 3
3 RESULTS ............................................................................................................. 4
3.1 GROUNDWATER FLOW DIRECTION ................................................................. 4
3.2 GROUNDWATER SAMPLING RESULTS ............................................................ 4
3.3 PLUME GEOMETRY............................................................................................. 5
4 CONCLUSIONS ................................................................................................... 6
5 LIMITATIONS ....................................................................................................... 7

TABLES
Table 1 Current Groundwater Monitoring Schedule
Table 2 Summary of Monitoring Well and Groundwater Elevation Data
Table 3 Groundwater Sample Results
Table 4 Historical Groundwater Sample Results

FIGURES
Figure 1 Site Location Map
Figure 2 Monitoring Well Location Map
Figure 3 Potentiometric Surface Map
Figure 4 Concentration of Methanol vs. Time in CMW-9
Figure 5 Concentration of Methanol vs. Time in CMW-10
Figure 6 Tetrachloroethene, Benzene, and cis-1,2 DCE Conc. vs. Time in CMW-9
Figure 7 Vinyl Chloride and cis-1,2 DCE Concentrations vs. Time in CMW-3

APPENDICES
Appendix A Laboratory Report

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1 BACKGROUND

The site is located at 2410 Randolph Avenue, Greensboro, Guilford County, North Carolina as
displayed on Figure 1. Valley Proteins, Inc. - Carolina By-Products (Valley Proteins - CBP)
currently owns the property and leases the site to Chemol Company, Inc. (Chemol). The site
formerly had six (6) underground storage tanks (USTs) that contained methanol and n-butanol.
Chemol personnel suspected that the USTs had lost integrity due to the presence of water in one
of the USTs. Data collected during the UST removal in March 1991 and the subsequent soil
sampling confirmed the release of alcohols to the subsurface. Further environmental sampling
confirmed both soil and groundwater contamination.

Water and sewer services are reportedly provided by the City of Greensboro to all residences and
businesses in the area. There are no reported water supply wells in use in the area. The site is
located within an industrial area of the City of Greensboro.

A Soil Vapor Extraction (SVE) system was installed at the site in late 1992 to remediate the affected
soils. The SVE system consisted of a vapor extraction trench over the area of the former USTs.
Analysis of soil samples collected during completion of the Comprehensive Site Assessment did not
detect contaminant concentrations above the Industrial/Commercial Soil Cleanup Levels.

A groundwater investigation at the site consisted of the installation of ten (10) monitoring wells.
Analysis of samples collected from the wells during the Comprehensive Site Assessment detected
concentrations of methanol and n-butanol above the state groundwater quality standards. As a
result of the groundwater exceedances, the North Carolina Department of Environmental Quality
(NCDEQ) requested Valley Proteins prepare a corrective action plan to remediate the
groundwater.

On June 8, 2004, Kleinfelder, Inc. (Kleinfelder; formerly Trigon Engineering Consultants, Inc.)
submitted a Corrective Action Plan (CAP) to the NCDEQ on behalf of Valley Proteins. The CAP
proposed allowing the alcohols and volatile hydrocarbons detected in the groundwater to naturally
attenuate over time and to monitor groundwater quality through annual groundwater sampling
events. The CAP was approved by the NCDEQ on October 11, 2004

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During the July 2008 sampling event, contaminant concentrations were detected above the 15 A
NCAC 2L.0202 Water Quality Standards (2L Standards) in several monitoring wells. Therefore,
in compliance with the August 41, 2008, correspondence from Ms. Cindy Rintoul of the NCDEQ
Division of Waste Management (DWM) UST Section, Kleinfelder implemented a semi-annual
monitoring schedule and included two (2) additional monitoring wells, CMW-1 and CMW-8.
Following three consecutive sampling events with concentrations below the 2L Standard,
Kleinfelder recommended removing CMW-1 and CMW-8 from the sampling schedule. In July
2010, following six sampling events of either clean samples or below State Standards, CMW-7
was also removed from the sampling schedule.

The March 19, 2012, letter from Ms. Carin Kromm of the NCDEQ DWM UST Section requested
a new monitoring well across the street from CMW-10. The new well, CMW-11, was installed on
December 6, 2012.

Kleinfelder has completed semi-annual groundwater monitoring events in February and
December of 2012, July of 2013, February and July of 2014 and 2015, March and August of 2016,
February and July of 2017. After the July 2017 groundwater monitoring event, Kleinfelder
recommended the sampling schedule switch to annual monitoring from semi-annual monitoring.
The NCDEQ approved this change in a letter dated August 21, 2017. Kleinfelder has completed
annual groundwater monitoring events in June of 2018, May of 2019, May 2020, May 2021, and
May 2022. As of May 2022, methanol and volatile organic compounds (VOCs) remained present
above the 2L Standard with the highest concentrations in monitoring wells CMW-9 and CMW-3.
This report details the results of the June 27, 2023 groundwater monitoring event.

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2 FIELD ACTIVITIES

On June 27, 2023, seven (7) monitoring wells were sampled according to the sampling schedule
shown in Table 1. Monitoring well CMW-5 could not be located as it had apparently been
landscaped. The locations of the monitoring wells are shown on Figure 2. Prior to collecting the
samples, the depth to groundwater was measured in all the monitoring wells, with the exception
of CMW-1 due to the inability to open the well, using an electronic water level indicator accurate
to 0.01 feet. Depth to groundwater was also measured for CMW-7 and CMW-8. The wells were
purged using a disposable bailer until three well volumes had been removed or the well was bailed
dry. The depth-to-water level in CMW-10 was 0.0 feet before purging due to an unsecured gripper
on top of the well casing. CMW-10 was bailed dry and left for 1 hour to recharge before sampling.
Samples were placed into pre-preserved laboratory provided containers, labeled, and maintained
on ice until delivery to Waypoint Analytical (Waypoint) in Charlotte, North Carolina for chemical
analysis. Each sample was analyzed for VOCs using EPA Method 8260. Waypoint contracted
Analytical Environmental Services, Inc. in Atlanta, Georgia to analyze CMW-9, CMW-10, and
CMW-11 for methanol using modified EPA Method 8015.

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3 RESULTS

3.1 GROUNDWATER FLOW DIRECTION
The groundwater measurements performed on June 27, 2023, were used to prepare a
potentiometric surface map shown on Figure 3. The monitoring well and groundwater elevation
data are summarized in Table 2. Groundwater levels across the site were generally lower than
those measured during the June 27, 2023 sampling event. Groundwater is generally moving
southwest as depicted in Figure 3. The horizontal hydraulic gradient calculated between
monitoring wells CMW-2(E) and CMW-11 is 0.083 foot/foot. The hydraulic conductivity, measured
by the HSMM Group, in the source area of the release ranged from approximately 4.5 to 16 feet
per year (4.35x10-6 to 1.55x10-5 cm/sec), with the hydraulic conductivities slightly higher in the
downgradient wells (CMW-4 and CMW-5). The estimated groundwater velocity across the site
ranges between approximately 1.25 to 4.4 feet per year based upon an assumed effective
porosity of 30 percent.

3.2 GROUNDWATER SAMPLING RESULTS
Laboratory analysis detected methanol in CMW-9 at a concentration exceeding the 2L Standard,
but at a lower concentration than the May 2022 sampling event. Laboratory analysis detected
methanol in CMW-10 at a concentration exceeding the laboratory method detection limit but not
exceeding the 2L Standard. The methanol concentration in CMW-11 exceeded the laboratory
method detection limit but did not exceed the 2L Standard. VOCs were detected above the
laboratory method detection limits in all monitoring wells sampled. Concentrations of one or more
VOCs detected in CMW-2(E), CMW-3, and CMW-9 exceeded the applicable 2L Standards.
Contaminants with concentrations above the 2L Standards included benzene, cis-1,2-
Dichloroethylene, methanol, methyl ethyl ketone, naphthalene, and vinyl chloride. The laboratory
results of the June 27, 2023 sampling event are summarized in Table 3. The laboratory report is
included in Appendix A.

To track the methanol concentrations over time, graphs were prepared for the monitoring wells
where methanol concentrations have historically exceeded the 2L Standard. Graphs showing
methanol concentrations in monitoring wells CMW-9 and CMW-10 are included as Figures 4 and
5, respectively. Concentrations of VOCs of historical concern in the bedrock monitoring well
CMW-9 included PCE, benzene, and the PCE daughter product cis-1,2 dichloroethylene (cis-1,2

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DCE). Concentrations of these compounds over time in CMW-9 are presented as Figure 6. PCE
appears to show a generally decreasing trend, which has decreased below the 2L Standard in
May 2022 and below the laboratory detection limit in June 2023. Benzene continues to show a
generally decreasing trend but remains over the 2L standard. With the exception of the May 2022
event, the concentration of benzene detected from the June 2023 event is the lowest
concentration detected since the May 2019 event. The daughter product cis-1,2 DCE continues
to show a generally decreasing trend but remains over the 2L Standard. Although there was an
increase from the May 2022 event, the concentration remains less than the concentrations
reported between February 2009 and May 2021. The benzene plume appears to be migrating in
the fractured bedrock from the Curtis Packing Company incident located south of the site. The
PCE plume appears to be migrating in the bedrock fractures from the off-site PCE incident at
Precision Fabrics Group south of the site. The concentrations of vinyl chloride and cis-1,2 DCE in
monitoring well CMW-3 appear to continue to decrease, as displayed on Figure 7. The
concentration of vinyl chloride in CMW-3 was below laboratory method detection limits. Vinyl
chloride was detected in monitoring well CMW-2(E) above the 2L Standard. The presence of vinyl
chloride may be an indication of the reductive dechlorination process associated with degradation
of PCE in the subsurface. Historical laboratory results for each of the monitoring wells are
summarized in Table 4.

3.3 PLUME GEOMETRY
Based on the June 27, 2023 sampling results and historical data, methanol has historically been
detected in CMW-9, CMW-10, and CMW-11 with the highest concentrations being detected in
monitoring well CMW-9. Methanol was detected in CMW-9 above the 2L Standard during this
sampling event. The concentration of methanol detected in CMW-9 decreased from the May 2022
event. The concentrations of methanol in CMW-10 and CMW-11 did not exceed the 2L standard.

Other VOCs were detected in all the monitoring wells that were sampled. The highest
concentrations of VOCs were detected in CMW-2(E), CMW-3, and CMW-9. The core of the plume
is situated around CMW-3 and CMW-9 with a large, diffuse plume extending towards CME-2(E)
and CMW-6.

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4 CONCLUSIONS

Based on the results of the June 27, 2023 annual sampling event, Kleinfelder has drawn the
following conclusions:
¨ The comparison criterion for this incident is the NC 2L Standards.
¨ Chlorinated solvents, including cis-1,2-Dichloroethylene and vinyl chloride, from an off-
site release were detected in CMW-2(E) and CMW-9 at concentrations exceeding the
2L Standards.
¨ Other VOCs, including benzene, naphthalene, and Methyl butyl ketone from an off-
site release were detected in CMW-2(E), CMW-3, and CMW-9 at concentrations
exceeding the 2L Standards.
¨ Methanol was detected at concentrations above the 2L Standard in CMW-9. The
methanol concentration in CMW-9 showed a decrease from the May 2022 sampling
event.
¨ Kleinfelder will attempt to find monitoring well CMW-5 during the next sampling event.
The missing data from monitoring well CMW-5 is not expected to impact the findings
of this report.
¨ Annual groundwater monitoring will continue until concentrations are below the 2L
Standards.

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5 LIMITATIONS

Kleinfelder offers various levels of investigative and engineering services to suit the varying needs
of different clients. It should be recognized that definition and evaluation of geologic and
environmental conditions are a difficult and inexact science. Judgments leading to conclusions
and recommendations are generally made with incomplete knowledge of the subsurface
conditions present due to the limitations of data from field studies. Although risk can never be
eliminated, more detailed and extensive studies yield more information, which may help
understand and manage the level of risk. Since detailed study and analysis involves greater
expense, Kleinfelder’s clients participate in determining levels of service that provide adequate
information for their purposes at acceptable levels of risk.

During the course of the performance of Kleinfelder’s services, hazardous materials may have
been discovered. Kleinfelder assumes no responsibility or liability whatsoever for any claim, loss
of property value, damage, or injury that results from pre-existing hazardous materials being
encountered or present on the project site, or from the discovery of such hazardous materials.
Nothing contained in this report should be construed or interpreted as requiring Kleinfelder to
assume the status of an owner, operator, or generator, or person who arranges for disposal,
transport, storage or treatment of hazardous materials within the meaning of any governmental
statute, regulation or order. Valley Proteins, Inc. - Carolina By-Products is solely responsible for
directing notification of all governmental agencies, and the public at large, of the existence,
release, treatment or disposal of any hazardous materials observed at the project site, either
before or during performance of Kleinfelder’s services. Valley Proteins, Inc. - Carolina By-
Products is responsible for directing all arrangements to lawfully store, treat, recycle, dispose, or
otherwise handle hazardous materials, including cuttings and samples resulting from Kleinfelder’s
services.

The information included on graphic representations in the Annual Groundwater Monitoring
Report has been compiled from a variety of sources and is subject to change without notice.
Kleinfelder makes no representations or warranties, express or implied, as to accuracy,
completeness, timeliness, or rights to the use of such information. These documents are not
intended for use as a land survey product, nor are they designed or intended as a construction
design document. The use or misuse of the information contained on these graphic
representations is at the sole risk of the party using or misusing the information.

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TABLES

TABLE 1: CURRENT GROUNDWATER MONITORING SCHEDULE
LOCATION CURRENT FREQUENCY PROPOSED FREQUENCY ANALYSES
CMW-1 None None None
CMW-2(E)May/June May/June 8260
CMW-3 May/June May/June 8260
CMW-4 May/June May/June 8260
CMW-5 May/June May/June*8260
CMW-6 May/June May/June 8260
CMW-7 None None None
CMW-8 None None None
CMW-9 May/June May/June 8260, 8015
CMW-10 May/June May/June 8260, 8015
CMW-11 May/June May/June 8260, 8015
NOTES:
Method 8260 (Volatile Organic Compounds)
Modified Method 8015 (Methanol)
*If located
ELEVATION1 WELL CONSTRUCTION
(ft.)(ft.)02/17/09
Top of Top of Length of Depth of
Casing Screen Screen Well
CMW-1 784.73 759.73 10 35 20.07 764.66 23.39 761.34 26.84 757.89 24.51 760.22 26.20 758.53 26.29 733.44
CMW-2(E)784.73 759.73 10 35 20.43 764.30 22.29 762.44 25.51 759.22 23.01 761.72 22.70 762.03 24.83 734.90
CMW-3 784.73 752.73 10 45 19.41 765.32 21.17 763.56 25.33 759.40 22.02 762.71 22.65 762.08 24.40 728.33
CMW-4 766.95 751.95 10 25 5.86 761.09 7.65 759.30 10.03 756.92 8.61 758.34 8.60 758.35 10.12 741.83
CMW-5 765.11 745.11 10 30 11.11 754.00 11.64 753.47 13.32 751.79 12.79 752.32 12.65 752.46 13.14 731.97
CMW-6 773.76 753.76 10 30 15.96 757.80 10.24 763.52 20.13 753.63 18.35 755.41 18.65 755.11 19.32 734.44
CMW-7 784.48 761.48 10 35 19.11 765.37 23.22 761.26 26.81 757.67 23.72 760.76 25.31 759.17 25.60 735.88
CMW-8 785.35 765.35 10 35 21.55 763.80 24.73 760.62 29.82 755.53 25.37 759.98 27.31 758.04 28.21 737.14
CMW-9 781.49 739.49 10 52 14.99 766.50 18.36 763.13 22.02 759.47 19.73 761.76 20.60 760.89 21.16 718.33
CMW-10 773.58 723.58 10 60 18.11 755.47 20.91 752.67 17.09 756.49 11.19 762.39 10.60 762.98 44.80 678.78
CMW-11 770.30 750.30 15 35 ------------------------
ELEVATION1 WELL CONSTRUCTION
(ft.)(ft.)
Top of Top of Length of Depth of
Casing Screen Screen Well
CMW-1 784.73 759.73 10 35 25.54 734.19 21.72 738.01 23.72 736.01 26.10 733.6 25.33 759.40 25.29 759.44
CMW-2(E)784.73 759.73 10 35 23.97 735.76 20.12 739.61 23.19 736.54 24.98 734.75 24.73 760.00 24.28 760.45
CMW-3 784.73 752.73 10 45 23.93 728.80 18.59 734.14 22.70 730.03 25.20 727.5 24.53 760.20 23.96 760.77
CMW-4 766.95 751.95 10 25 9.14 742.81 6.92 745.03 8.15 743.80 9.82 742.13 9.04 757.91 9.19 757.76
CMW-5 765.11 745.11 10 30 12.66 732.45 12.02 733.09 12.06 733.05 13.12 731.99 12.64 752.47 12.54 752.57
CMW-6 773.76 753.76 10 30 18.80 734.96 17.96 735.80 17.91 735.85 19.82 733.94 19.08 754.68 18.73 755.03
CMW-7 784.48 761.48 10 35 24.73 736.75 21.36 740.12 22.76 738.72 25.90 735.58 24.35 760.13 24.69 759.79
CMW-8 785.35 765.35 10 35 26.89 738.46 22.43 742.92 25.17 740.18 28.34 737.01 26.20 759.15 25.60 759.75
CMW-9 781.49 739.49 10 52 21.39 718.10 19.04 704.54 19.42 720.07 22.20 717.29 21.85 759.64 21.31 760.18
CMW-10 773.58 723.58 10 60 50.59 672.99 47.12 676.46 50.94 672.64 46.30 677.28 48.03 725.55 47.77 725.81
CMW-11 770.30 750.30 15 35 ------------------------
NOTES:
1 Elevations surveyed by Hayes, Seay, Mattern & Mattern, Inc. relative to mean sea level
2 Water levels measured from the top of casing by Kleinfelder
3 Depth measured in feet from top of casing
4 NM = Not Measured
Elevation
07/21/11
Depth
(ft.) 3
Depth
(ft.) 3
Depth
(ft.) 3Elevation Elevation
Depth
(ft.) 3
Depth
(ft.) 3
Depth
(ft.) 3ElevationElevation Depth
(ft.) 3
07/16/08
Elevation Depth
(ft.) 3 Elevation
TABLE 2: SUMMARY OF MONITORING WELL AND GROUNDWATER ELEVATION DATA
WATER LEVELS2
09/01/09
WATER LEVELS2
Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation
02/03/12
Depth
(ft.) 3 Elevation
LOCATION Depth
(ft.) 3
08/14/03 11/05/04 11/17/05 12/19/06
Elevation Elevation
02/17/10 07/06/10 01/20/11
LOCATION
ELEVATION1 WELL CONSTRUCTION
(ft.)(ft.)
Top of Top of Length of Depth of
Casing Screen Screen Well
CMW-1 784.73 759.73 10 35 27.09 757.64 22.98 761.75 24.65 760.08 24.93 759.80 26.84 757.89 25.73 759.00
CMW-2(E)784.73 759.73 10 35 25.46 759.27 22.97 761.76 23.91 760.82 24.24 760.49 25.57 759.16 25.61 759.12
CMW-3 784.73 752.73 10 45 25.80 758.93 22.61 762.12 23.30 761.43 23.81 760.92 25.69 759.04 25.75 758.98
CMW-4 766.95 751.95 10 25 10.34 756.61 7.85 759.10 8.83 758.12 9.00 757.95 10.14 756.81 9.60 757.35
CMW-5 765.11 745.11 10 30 13.50 751.61 12.02 753.09 12.97 752.14 12.68 752.43 13.37 751.74 13.28 751.83
CMW-6 773.76 753.76 10 30 19.80 753.96 17.96 755.80 18.54 755.22 18.10 755.66 22.68 751.08 19.45 754.31
CMW-7 784.48 761.48 10 35 26.67 757.81 22.18 762.30 23.95 760.53 24.39 760.09 26.04 758.44 24.70 759.78
CMW-8 785.35 765.35 10 35 30.33 755.02 23.19 762.16 25.32 760.03 26.45 758.90 27.78 757.57 26.01 759.34
CMW-9 781.49 739.49 10 52 23.30 758.19 21.24 760.25 21.78 759.71 20.63 760.86 22.68 758.81 22.49 759.00
CMW-10 773.58 723.58 10 60 39.60 733.98 49.50 724.08 50.20 723.38 52.05 721.53 51.63 721.95 54.22 719.36
CMW-11 770.30 750.30 15 35 15.98 754.32 15.86 754.44 14.28 756.02 14.36 755.94 15.87 754.43 15.48 754.82
ELEVATION1 WELL CONSTRUCTION
(ft.)(ft.)
LOCATION Top of
Casing
Top of
Screen
Length of
Screen
Depth of
Well
Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation
CMW-1 784.73 759.73 10 35 22.42 762.31 23.47 761.26 26.25 758.48 24.35 760.38 26.00 758.73 22.14 762.59
CMW-2(E)784.73 759.73 10 35 22.78 761.95 24.3 760.43 24.97 759.76 23.91 760.82 24.29 760.44 21.80 762.93
CMW-3 784.73 752.73 10 45 21.92 762.81 22.84 761.89 25.30 759.43 23.90 760.83 24.08 760.65 20.50 764.23
CMW-4 766.95 751.95 10 25 7.02 759.93 8.16 758.79 9.71 757.24 9.90 757.05 9.10 757.85 7.37 759.58
CMW-5 765.11 745.11 10 30 12.29 752.82 12.39 752.72 13.11 752.00 12.60 752.51 12.82 752.29 11.95 753.16
CMW-6 773.76 753.76 10 30 16.41 757.35 17.76 756.00 19.46 754.30 18.25 755.51 18.47 755.29 16.40 757.36
CMW-7 784.48 761.48 10 35 21.72 762.76 22.34 762.14 25.23 759.25 23.39 761.09 24.25 760.23 21.36 763.12
CMW-8 785.35 765.35 10 35 22.31 763.04 24.42 760.93 27.81 757.54 28.17 757.18 25.04 760.31 23.51 761.84
CMW-9 781.49 739.49 10 52 18.66 762.83 19.07 762.42 21.20 760.29 20.84 760.65 20.95 760.54 16.05 765.44
CMW-10 773.58 723.58 10 60 51.32 722.26 53.11 720.47 53.15 720.43 54.22 719.36 49.50 724.08 43.10 730.48
CMW-11 770.30 750.30 15 35 13.17 757.13 13.85 756.45 16.19 754.11 16.15 754.15 14.52 755.78 12.95 757.35
ELEVATION1 WELL CONSTRUCTION
(ft.)(ft.)
Top of Top of Length of Depth of
Casing Screen Screen Well
CMW-1 784.73 759.73 10 35 22.72 762.01 21.83 762.90 23.79 760.94 NM4 NM4
CMW-2(E)784.73 759.73 10 35 22.33 762.40 20.95 763.78 22.75 761.98 22.05 762.68
CMW-3 784.73 752.73 10 45 21.39 763.34 19.22 765.51 21.80 762.93 21.28 763.45
CMW-4 766.95 751.95 10 25 7.28 759.67 6.85 760.10 7.78 759.17 7.51 759.44
CMW-5 765.11 745.11 10 30 12.10 753.01 11.09 754.02 NM4 NM4 NM4 NM4
CMW-6 773.76 753.76 10 30 17.07 756.69 15.19 758.57 18.60 755.16 16.95 756.81
CMW-7 784.48 761.48 10 35 12.60 771.88 19.29 765.19 22.49 761.99 22.07 762.41
CMW-8 785.35 765.35 10 35 23.36 761.99 22.20 763.15 24.82 760.53 24.39 760.96
CMW-9 781.49 739.49 10 52 17.57 763.92 14.37 767.12 19.00 762.49 17.95 763.54
CMW-10 773.58 723.58 10 60 50.50 723.08 45.35 728.23 49.40 724.18 0.00 773.58
CMW-11 770.30 750.30 15 35 12.39 757.91 12.78 757.52 13.74 756.56 13.05 757.25
NOTES:
1 Elevations surveyed by Hayes, Seay, Mattern & Mattern, Inc. relative to mean sea level
2 Water levels measured from the top of casing by Kleinfelder
3 Depth measured in feet from top of casing
4 NM = Not Measured
LOCATION
07/16/15
Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation
12/13/12 02/05/14 07/16/14
WATER LEVELS2
07/24/13
06/19/18
Elevation
02/25/15
03/02/16 08/05/16
Depth
(ft.) 3
02/16/17 07/17/17
WATER LEVELS2
05/30/19
Depth
(ft.) 3 ElevationDepth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation
TABLE 2: SUMMARY OF MONITORING WELL AND GROUNDWATER ELEVATION DATA (Continued)
05/01/20 05/13/21 05/26/22 06/27/23
WATER LEVELS2 WATER LEVELS2 WATER LEVELS2 WATER LEVELS2
LOCATION Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation Depth
(ft.) 3 Elevation
PARAMETER
LOCATION CMW-1 CMW-2(E)CMW-3 CMW-4 CMW-5 CMW-6 CMW-7 CMW-8 CMW-9 CMW-10 CMW-11 Trip Blank
DATE COLLECTED 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 06/27/23 --
1,1,1,2-Tetrachloroethane NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 1
1,1-Dichloroethane NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 6
1,2,4-Trimethylbenzene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 400
1,3,5-Trimethylbenzene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 400
1,2-Dichlorobenzene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 201,2-Dichloropropane NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 0.6
1,4-Dichlorobenzene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 6
cis-1,2-Dichloroethylene NS 3.58 J 44.0 J 0.355 J NS BDL NS NS 77.5 BDL BDL BDL 70
2-Chlorotoluene NS BDL 33.4 J BDL NS BDL NS NS 37.9 J BDL BDL BDL 100
4-Chlorotoluene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 24
4-Isopropyltoluene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 25
Acetone NS BDL BDL BDL NS 535 NS NS BDL 863 BDL BDL 6,000
Benzene NS 4.33 J 54.8 BDL NS BDL NS NS 50.7 BDL BDL BDL 1
Bromomethane NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 10
Carbon disulfide NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 700
Chlorobenzene NS 12.3 BDL BDL NS BDL NS NS BDL 6.09 0.434 J BDL 50
Chloroethane NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 3,000
Chloromethane NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 3
Diisopropyl ether (DIPE)NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 70
Ethylbenzene NS 3.57 J 91.9 BDL NS BDL NS NS 78.7 BDL BDL BDL 600
Isopropylbenzene (cumene)NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 70
Methanol NS NA NA NA NS NA NS NS 13,800 7.19 3.37 NA 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NS BDL BDL BDL NS 327 J NS NS 1640 221 BDL BDL 4,000
Methyl butyl ketone (2-Hexanone)NS BDL BDL BDL NS BDL NS NS BDL 35.2 J BDL BDL 40
Methylene chloride NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 5
Naphthalene NS BDL BDL BDL NS BDL NS NS 219 BDL BDL BDL 6
n-Butanol NS NA NA NA NS NA NS NS NA NA BDL NA 590
n-Butylbenzene NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 70
Tetrachloroethylene NS NA NA NA NS NA NS NS NA NA NA NA 0.7
Toluene NS 5.92 266 BDL NS 27.2 J NS NS 241 4.10 J BDL BDL 600
Trichloroethene NS NA BDL BDL NS BDL NS NS BDL BDL BDL BDL 3
Vinyl chloride NS 4.63 J BDL BDL NS BDL NS NS BDL BDL BDL BDL 0.03
Xylenes NS BDL 45.4 J BDL NS BDL NS NS 63 J BDL BDL BDL 500
Methyl tert-butyl ether (MTBE)NS BDL BDL BDL NS BDL NS NS BDL BDL BDL BDL 20
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
GCLs = Gross Contaminant Levels, effective March 7, 2022
NE = No standard establishedBold = Concentration exceeds the laboratory method detection limit
Shaded = Concentration exceeds the 2L StandardHighlighted = Concentration exceeds the GCL
BDL = Below the laboratory method detection limitBRL = Below the laboratory reporting limit
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
NS = Not Sampled
COMPARISON
CRITERIA
2L STANDARD
TABLE 3: GROUNDWATER SAMPLE RESULTS
ANALYTICAL RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
1,2,4-Trimethylbenzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 400
1,2-Dichlorobenzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 20
1,2-Dichloropropane BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.6
1,4-Dichlorobenzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
2-Chlorotoluene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 100
4-Chlorotoluene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 24
4-Isopropyltoluene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 25
Acetone BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6,000
Benzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 1
bis (2-Ethylhexyl) phthalate 14 BRL BRL NS NS NS NS BRL NA NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
Chlorobenzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 50
Chloroethane BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3,000
Chloromethane BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
cis-1,2-Dichloroethylene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Ethylbenzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 600
Diisoprophyl ether (DIPE)BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Isopropylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Methanol 60,000 40,000 BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 4,000
Methyl ethyl ketone (MEK, 2-Butanone)BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 4,000
Methyl butyl ketone (2-Hexanone)BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 40
Methylene chloride BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 5
Naphthalene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
n-Butanol BRL BRL BRL NS NS NS NS NA NA NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 590
n-Butylbenzene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Tetrachloroethene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.7
Toluene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 600
Trichloroethene BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
Vinyl chloride BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.03
Xylenes BRL BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard
Bold = Concentration exceeds the 2L Standard
BRL = Below the reporting limit of the method of analysis
NA = Sample not analyzed for this compound
NS = Not Sampled
2L
Standards
ANALYTICAL RESULTS
CMW-1
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane BRL BRL BRL 4.0 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.64 BRL BRL 0.59 1.80 1.8 BRL 0.584 BDL 6
1,2,4-Trimethylbenzene BRL BRL BRL BRL BRL 1.1 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 400
1,2-Dichlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 20
1,2-Dichloropropane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.6
1,4 Dichlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.28 J 0.80 J 1.1 BRL BRL BRL BRL BRL BRL BRL BRL 0.65 0.47 J 0.43 J BRL BDL BDL 6
2-Chlorotoluene BRL BRL BRL BRL BRL 3.6 2.7 1.8 BRL 2.1 3.2 2.2 2.1 1.4 2.1 1.6 BRL 2.8 2.8 2.6 2.2 2.0 1.6 1.4 0.96 2.70 3.2 2.68 2.66 BDL 100
4-Chlorotoluene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 24
4-Isopropyltoluene BRL BRL BRL BRL BRL 1.3 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.22 J 0.22 J BDL BDL 25
Acetone BRL BRL BRL 221 BRL BRL BRL BRL BRL BRL BRL 5.4 J BRL 6.8 J BRL BRL BRL BRL BRL BRL BRL 3.8 J 8.2 9.7 7.5 11.00 19 2.91 J 26.0 BDL 6,000
Benzene BRL BRL BRL 4.0 BRL 1.8 1.4 1.4 BRL 1.4 1.4 1.6 1.2 0.80 J 1.8 1.7 BRL 2.4 BRL 2.2 2.0 2.6 1.7 1.4 2.3 4.60 5.7 2.04 3.62 4.33 J 1
bis (2-Ethylhexyl) phthalate BRL 31 BRL BRL BRL BRL NA NA NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA BRL BRL BRL BRL NA NA NA NA BDL NA 3
Carbon disulfide NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 1.1 J BRL 1.2 J 1.2 J BDL BDL 700
Chlorobenzene 200 550 30 27 19 20 3.8 BRL 11 24 18 15 16 30 99 160 80 51 33 38 43 51 41 40 61 40.00 38 21.3 13.80 12.30 50
Chloroethane BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.55 J BRL BRL 1.3 J 0.26 J BRL BRL BRL 0.75 J BRL 1.4 BRL BRL BRL 0.55 BRL 0.95 3.4 J 0.487 J BDL BDL 3,000
Chloromethane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.2 BRL BDL BDL 3
cis-1,2-Dichloroethylene BRL BRL BRL BRL BRL BRL BRL 0.59 J BRL BRL 0.59 J 0.75 J BRL BRL BRL BRL BRL 0.82 J BRL 0.53 BRL 1.1 0.51 0.51 1.2 4.30 5 0.619 2.99 3.58 J 70
Ethylbenzene BRL BRL BRL 4.0 BRL BRL BRL 1.5 BRL BRL 1.9 0.97 J BRL BRL 0.62 J 1.0 BRL 1.5 BRL 0.61 0.85 1.6 0.71 0.71 1.5 3.0 J 7.1 0.601 2.93 3.57 J 600
Diisoprophyl ether (DIPE)BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.82 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Isopropylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Methanol 170,000 21,000 1,300,000 28,200 159,000 11,200 6,690 BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4,000
Methyl ethyl ketone (MEK, 2-Butanone)BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.5 J 2.7 J BRL 5.98 BDL 4,000
Methyl butyl ketone (2-Hexanone)BRL BRL BRL BRL BRL BRL 1.4 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.644 J BDL 40
Methylene chloride BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 5
Naphthalene BRL BRL BRL 6.0 9.6 2.1 BRL BRL BRL BRL BRL 0.75 J BRL 0.26 J BRL BRL BRL 0.52 J BRL BRL BRL 0.70 J BRL BRL 0.55 J 1.80 1.6 0.786 J BDL BDL 6
n-Butanol 1,600,000 200,000 3,900,000 36 NA NA NA NA NA NA NA NA NA NA 2.6 25 BRL BRL 80 BRL BRL 50 BRL BRL BRL ND ND ND BDL NA 590
n-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Tetrachloroethene BRL BRL BRL BRL BRL BRL BRL 0.64 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.1 BRL BRL BRL 4.1 J 1.7 BRL 0.458 J BDL 0.7
Toluene BRL BRL BRL 14 10.2 3.2 1.0 1.8 BRL 1.8 2.2 3.0 1.3 0.40 J 1.4 1.3 2.6 3.3 BRL 1.9 2.1 3.8 BRL 1.4 2.6 7.80 9.2 2.06 4.92 5.92 600
Trichloroethene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.67 0.68 BRL 0.276 J BDL 3
Vinyl chloride BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.59 J BRL BRL 0.93 J 0.42 J 0.77 J 0.77 J BRL 1.8 J BRL 1.4 1.7 BRL BRL 0.98 1.5 6.10 3.8 3.15 4.25 4.63 J 0.03
Xylenes 100 BRL BRL BRL BRL 4.8 1.4 1.1 BRL 1.71 J 4.6 1.5 J BRL BRL 0.91 J 0.91 J BRL 1.83 J BRL 1.65 BRL 1.95 0.67 J 0.65 J 0.93 J BRL 6.6 1.81 2.93 BDL 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
BRL = Below the reporting limit of the method of analysis
BDL = Below the laboratory method detection limit
Bold = Concentration exceeds the 2L Standard
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
ND = Analyte was not detected
2L
STANDARDS
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
ANALYTICAL RESULTS
CMW-2(E)
PARAMETER
LOCATION
DATE SAMPLES 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/231,1,1,2-Tetrachloroethane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 11,1-Dichloroethane BRL BRL BRL 17 15.6 BRL BRL 2.2 J BRL BRL BRL BRL BRL 2.8 J BRL BRL BRL 3.1 J BRL 2.7 3.6 BRL 5.0 4.3 6.6 13 10 BRL 1.80 BDL 6
1,2,4-Trimethylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 34 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 400
1,3,5- Trimethylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.5 BRL BRL BRL BRL BRL BRL BRL BDL BDL 400
1,2-Dichlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 20
1,2-Dichloropropane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.6
1,4 Dichlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6
2-Chlorotoluene BRL BRL BRL 29 29 43 BRL 35 BRL 41 59 25 BRL 30 33 38 41 35 38 35 34 BRL 26 26 25 42 24 28 3.40 33.4 J 100
4-Chlorotoluene BRL BRL BRL BRL BRL BRL BRL 2.9 BRL 5.3 J BRL BRL BRL 3.2 J BRL BRL BRL 3.4 BRL 3.3 3.0 BRL BRL BRL BRL 3.1 J 2.3 J 2.52 0.301 J BDL 24
4-Isopropyltoluene BRL BRL BRL BRL BRL BRL BRL 2.7 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.99 BRL BRL BRL BRL BRL BRL 0.60 BDL BDL 25
Acetone BRL BRL BRL 1,670 482 BRL BRL BRL BRL 14 J BRL BRL BRL 11 J BRL BRL BRL BRL BRL BRL 17 BRL 23 130 34 J 180 92 45.3 23.30 BDL 6,000
Benzene BRL BRL BRL 75 68.7 70.4 BRL 77 BRL 72 61 77 71 67 80 66 74 76 68 63 64 73 52 36 48 66 48 47.6 6.05 54.8 1
Bromomethane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.555 J BDL 10
bis (2-Ethylhexyl) phthalate BRL BRL BRL NA NA NA NA BRL NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA NA BRL BRL BRL NA NA NA NA NA NA 3
Chlorobenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 5.4 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL A BRL BRL BDL BDL 50
Chloroethane BRL BRL BRL BRL BRL BRL BRL 5.6 J BRL 5.3 J BRL BRL BRL BRL BRL BRL BRL 4.0 J BRL 5.1 3.0 BRL 4.2 3.2 BRL BRL BRL 2.46 BDL BDL 3,000
Chloromethane BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
cis-1,2-Dichloroethylene BRL BRL BRL 286 18.2 BRL BRL 2.4 J BRL 23 BRL 72 27 9.6 J 6.4 J 17 BRL 40 BRL 17 26 BRL 18 32 20 59 40 26.1 6.06 44.0 J 70
Ethylbenzene BRL BRL BRL 50 66.3 20 BRL 69 BRL 45 120 71 79 100 IH 96 J 100 150 120 100 500 BRL 100 76 BRL 220 IH 88 A 80 15.3 8.61 91.90 600
Diisoprophyl ether (DIPE)BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Isopropylbenzene BRL BRL BRL BRL BRL BRL BRL 2.2 J BRL BRL BRL BRL BRL BRL BRL BRL BRL 3.9 J BRL BRL 1.5 BRL BRL BRL BRL BRL BRL 1.05 J BDL BDL 70
Methanol 23,000,000 7,800,000 730,000 48,400 704,000 81,700 2,010 920 BRL 47,700 BRL BRL BRL BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4,000
Methyl ethyl ketone (MEK, 2-Butanone)BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 11 62 BRL BRL 42 J 26.1 BDL BDL 4,000
Methyl butyl ketone (2-Hexanone)BRL BRL BRL 62 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL A BRL BRL BDL BDL 40
Methylene chloride BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.336 J BDL 5
Naphthalene BRL BRL BRL 133 151 138 200 170 BRL 160 140 110 110 110 130 130 160 150 130 73 150 160 120 230 130 210 100 180 24.20 BDL 6
n-Butanol 89,000,000 98,000,000 700,000 10 NA NA NA NA NA NA NA NA NA NA 64 250 BRL BRL 1,800 BRL BRL 500 1,000 2,200 BRL 500 9700 50 BDL NA 590
n-Butylbenzene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.308 J BDL BDL 70
Tetrachloroethene BRL BRL BRL BRL 18 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 4.1 J 10 4 1.12 BDL 0.7
Toluene BRL BRL BRL 180 219 229 260 BRL 300 J 320 220 270 250 270 310 280 300 330 290 270 250 310 200 160 180 270 190 225 26.10 266 600
Trichloroethene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.59 BRL BRL 3.9 J 2.7 J 2 0.674 BDL 3
Vinyl chloride BRL BRL BRL 17 70 136 290 220 290 J 300 260 350 370 460 410 410 420 440 300 260 270 240 130 110 91 140 57 119 6.02 BDL 0.03
trans-1,2-Dichloroethylene BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.73 0.54 BRL BRL BRL BRL BDL BDL 100
Xylenes BRL BRL BRL 10 41.1 110 140 92 BRL 79 172 58 83 920 IH 64 DM, J 74 J 118 68 46 J 468 IH 94 BRL 31 J BRL 120 39.0 A,J 54 17.1 5.61 45.4 J 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
GCLs = Gross Contaminant Levels, effective March 7, 2022
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
BRL = Below the reporting limit of the method of analysisBDL = Below laboratory method detection limit
Bold = Concentration exceeds the 2L StandardShaded = Concentration exceeds the GCL
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
IH = Internal standard response below the QC limit. Analyte reported with possible high bias.
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
2L
STANDARDS
ANALYTICAL RESULTS
CMW-3
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLES 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI BRL BRL BRL BRL BRL BRL 0.91 J 1.5 1.8 2.3 1.4 1.7 1.3 0.84 J 0.90 J 0.7 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6
1,2,4-Trimethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 400
1,2-Dichlorobenzene NI BRL BRL BRL BRL BRL 32 6.9 22 29 30 6.9 9.4 4.8 1.3 4.4 1.7 2.2 BRL BRL 0.54 BRL BRL BRL BRL BRL BRL BRL BDL BDL 20
1,2-Dichloropropane NI BRL BRL NA NA NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.6
1,4-Dichlorobenzene NI BRL BRL BRL BRL BRL 3.3 1.1 3.0 4.2 4.9 1.3 BRL 0.89 J BRL 0.69 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6
2-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 100
4-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 24
4-Isopropyltoluene NI BRL BRL BRL BRL BRL BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 25
Acetone NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6,000
Benzene NI BRL BRL BRL BRL BRL BRL BRL 1.3 1.5 1.5 BRL BRL 0.25 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 1
bis (2-Ethylhexyl) phthalate NI 27 BRL NA NA NA BRL BRL NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA NA NA NA NA NA BRL NA BRL NA NA 3
Chlorobenzene NI BRL BRL BRL BRL BRL 55 29 110 150 170 41 55 30 6.2 22 7.4 9.5 BRL 0.55 1.8 BRL BRL BRL BRL BRL BRL BRL BDL BDL 50
Chloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3,000
Chloromethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
cis-1,2-Dichloroethylene NI BRL BRL BRL BRL BRL 1.1 BRL BRL BRL 0.81 J BRL BRL 0.34 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.36 J 0.39 J 0.737 0.436 J 0.355 J 70
Diisoprophyl ether NI BRL BRL NA NA NA 1.7 BRL 1.4 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA NA BDL 600
Ethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL 1.0 0.95 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 600
Diisoprophyl ether (DIPE)NI BRL BRL BRL BRL BRL BRL 0.69 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Methanol NI 38,000 BRL BRL BRL BRL 2,910 BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA BRL NA NA 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NI BRL BRL NA NA NA BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 4,000
Methyl butyl ketone (2-Hexanone)NI BRL BRL NA NA NA BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 40
Methylene chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 5
Naphthalene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.78 J BRL BRL BRL BDL BDL 6
n-Butanol NI BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA BRL BRL BRL BRL BRL 1.7 BRL BRL BRL ND ND ND BDL NA 590
n-Butylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Tetrachloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.7
Toluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 600
Trichloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
Vinyl chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.47 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.03
Xylenes NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.4 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
BRL = Below the reporting limit of the method of analysis
BDL = Below laboratory method detection limit
Bold = Concentration exceeds the 2L Standard
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
NS = Not Sampled
ND = Analyte was not detected
2L
STANDARDSCMW-4
ANALYTICAL RESULTS
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 6
1,2,4-Trimethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 400
1,2-Dichlorobenzene NI BRL BRL BRL 8.19 14 12 7.8 14 4.5 20 8.4 7.9 1.2 2.4 BRL 0.99 1.1 0.89 1.3 0.74 2.6 1.2 0.71 0.98 BRL 1.6 BRL NS NS 20
1,2-Dichloropropane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 0.6
1,4-Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 7.5 BRL BRL NS NS 6
2-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 100
4-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 24
4-Isopropyltoluene NI BRL BRL BRL BRL BRL BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 25
Acetone NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 6,000
Benzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 1
bis (2-Ethylhexyl) phthalate NI 38 BRL NA NA NA NA NA NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA NA NA NA NA NA BRL NA NA NS NS 3
Chlorobenzene NI BRL 3.0 BRL 12 BRL 16 3.8 18 0.88 J 16 5.6 5.3 0.42 J 2.2 BRL BRL 1.1 BRL 1.4 BRL 2.0 BRL BRL BRL 5.6 BRL BRL NS NS 50
Chloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 3,000
Chloromethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 3
cis-1,2-Dichloroethylene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 70
Ethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 600
Diisoprophyl ether (DIPE)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.77 0.21 J BRL NS NS 70
Isopropylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 70
Methanol NI 36,000 BRL BRL BRL BRL 1,360 BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NS NS 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 4,000
Methyl butyl ketone (2-Hexanone)NI BRL BRL BRL BRL BRL BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 40
Methylene chloride NI BRL BRL BRL BRL BRL BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 5
Naphthalene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 6
n-Butanol NI BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA BRL BRL BRL BRL 50 BRL BRL BRL ND ND ND NS NS 590
n-Butylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 70
Tetrachloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 0.7
Toluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 600
Trichloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 3
Vinyl chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS 0.03
Xylenes NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.51 J BRL BRL BRL BRL BRL BRL BRL BRL NS NS 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard
BRL = Below the reporting limit of the method of analysis
Bold = Concentration exceeds the 2L Standard
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
ND = Analyte was not detected
NS = Not Sampled
2L
STANDARDS
ANALYTICAL RESULTS
CMW-5
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.27 J 0.532 1.56 BDL 6
1,2,4-Trimethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.523 BDL 400
1,2-Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.372 J BDL 20
1,2-Dichloropropane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.492 J BDL 0.6
1,4-Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6
2-Chlorotoluene NI BRL BRL BRL BRL 1.4 2.8 1.4 1.8 1.1 2.1 1.9 2.0 2.1 2.1 1.9 2.5 1.5 2.0 2.1 2.1 2.2 2.1 1.9 1.0 0.39 J 1.4 3.03 4.16 BDL 100
4-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.207 J BDL 24
4-Isopropyltoluene NI BRL BRL BRL BRL BRL BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 25
Acetone NI BRL BRL BRL BRL BRL 22 52 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 5.6 4.5 J BRL 102 59.50 535 6,000
Benzene NI BRL BRL BRL BRL BRL BRL 1.0 0.88 J 0.65 J 0.87 J 1.1 1.0 0.84 J 0.82 J 0.73 J 1.0 0.57 J 0.7 0.8 0.6 0.7 0.7 0.5 BRL 0.27 J 1.1 2.93 5.67 BDL 1
bis (2-Ethylhexyl) phthalate NI 19 BRL NA NA NA NA NA NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA NA NA NA NA NA BRL NA NA NA NA 3
Carbon disulfide NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.09 J BDL 700
Chlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.40 J BRL BRL 0.62 BRL BRL 0.53 BRL 0.60 0.63 0.55 BRL BRL 0.96 1.27 1.65 BDL 50
Chloroethane NI BRL BRL BRL BRL BRL BRL 0.6 J 0.52 J BRL BRL BRL BRL 0.58 J BRL BRL 0.62 BRL BRL 0.99 BRL BRL 0.69 0.64 BRL BRL 0.65 J 0.684 J 2.53 BDL 3,000
Chloromethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
cis-1,2-Dichloroethylene NI BRL BRL 1.0 BRL 1.1 2.1 2.4 2.6 1.5 2.2 2.5 2.5 2.4 2.2 1.9 2.4 1.5 1.9 1.8 1.6 1.8 1.6 1.3 1.0 0.51 2.6 3.81 7.06 BDL 70
Diisoprophyl ether (DIPE)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.5 BRL BRL BRL BRL BRL 0.62 BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA BDL BDL 600
Ethylbenzene NI BRL BRL BRL BRL BRL BRL 1.4 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.6 3.1 7.8 BDL 70
Isopropylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Methanol NI 9,000 BRL BRL BRL BRL 625 BRL BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 4,000
Methyl ethyl ketone (MEK 2-Butanone)NI BRL BRL BRL BRL BRL 10 14 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 50.4 26.5 327 J 4,000
Methyl butyl ketone (2-Hexanone)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 5.26 22.20 BDL 40
Methylene chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.31 BDL BDL 5
Naphthalene NI BRL BRL BRL BRL BRL 1.4 3.9 BRL BRL BRL 0.68 J 0.93 J 0.76 J 0.61 J 0.56 J 0.72 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 11.30 BDL 6
n-Butanol NI BRL BRL BRL NA NA NA NA NA NA NA NA NA NA 0.19 BRL NA BRL BRL BRL BRL 100 BRL BRL BRL ND ND ND BDL NA 590
n-Butylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Tetrachloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.7
Toluene NI BRL BRL BRL BRL BRL BRL 1.2 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.36 J 6.37 18.90 27.2 J 600
Trichloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.476 J BDL 3
Vinyl chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.03
Xylenes NI BRL BRL BRL BRL 4.0 5.8 3.9 2.7 J 0.65 J 4.2 1.95 J 3.81 0.99 J 0.53 J 0.76 J 2.56 BRL 0.5J 1.55 J 0.54 J 1.03 J 0.71 J BRL BRL BRL 1.8 10.8 22.8 BDL 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
BRL = Below the reporting limit of the method of analysis
BDL = Below laboratory method detection limit
Bold = Concentration exceeds the 2L Standard
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
ND = Analyte was not detected
2L
STANDARDS
ANALYTICAL RESULTS
CMW-6
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 08/06/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
1,2,4-Trimethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 400
1,2-Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 20
1,2-Dichloropropane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.6
1,4-Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
2-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 100
4-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 24
4-Isopropyltoluene NI BRL BRL BRL BRL BRL BRL BRL NA BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 25
Acetone NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6,000
Benzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 1
bis (2-Ethylhexyl) phthalate NI 59 BRL NA NA NA NA NA NA NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
Chlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 50
Chloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3,000
Chloromethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
cis-1,2-Dichloroethylene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Ethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 600
Diisoprophyl ether (DIPE)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Isopropylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Methanol NI 12,000 BRL 6,380 BRL BRL 1,370 BRL BRL BRL NS NS NS NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 4,000
Methyl ethyl ketone (MEK 2-Butanone)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 4,000
Methyl butyl ketone (2-Hexanone)NI BRL BRL BRL BRL BRL BRL BRL NA BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 40
Methylene chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 5
Naphthalene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
n-Butanol NI BRL BRL BRL NA NA NA NA NA NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 590
n-Butylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Tetrachloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.7
Toluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 600
Trichloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
Vinyl chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.03
Xylenes NI BRL BRL BRL BRL BRL BRL BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard
BRL = Below the reporting limit of the method of analysis
Bold = Concentration exceeds the 2L Standard
NA = Sample not analyzed for this compound
NS = Not Sampled
2L STANDARDS
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
ANALYTICAL RESULTS
CMW-7
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
1,2,4-Trimethylbenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 400
1,2-Dichlorobenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 20
1,2-Dichloropropane NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.6
1,4-Dichlorobenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
2-Chlorotoluene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 100
4-Chlorotoluene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 24
4-Isopropyltoluene NI BRL BRL NS NS NS NS BRL NA BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 25
Acetone NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6,000
Benzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 1
bis (2-Ethylhexyl) phthalate NI BRL BRL NS NS NS NS BRL NA NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
Chlorobenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 50
Chloroethane NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3,000
Chloromethane NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
cis-1,2-Dichloroethylene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Ethylbenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 600
Diisoprophyl ether (DIPE)NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Isopropylbenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Methanol NI 14,000 BRL NS NS NS NS 784 BRL BRL NS NS NS NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NI BRL BRL NS NS NS NS BRL NA BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 4,000
Methyl butyl ketone (2-Hexanone)NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 40
Methylene chloride NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 5
Naphthalene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 6
n-Butanol NI BRL BRL NS NS NS NS NA NA NA NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 590
n-Butylbenzene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 70
Tetrachloroethene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.7
Toluene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 600
Trichloroethene NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 3
Vinyl chloride NI BRL BRL NS NS NS NS BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 0.03
Xylenes NI BRL BRL NA NA NA NA BRL BRL BRL NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard
Bold = Concentration exceeds the 2L Standard
BRL = Below the reporting limit of the method of analysis
NA = Sample not analyzed for this compound
NS = Not Sampled
2L
STANDARDS
ANALYTICAL RESULTS
CMW-8
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/31/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI BRL BRL 73 BRL BRL BRL 55 J 56 40 77 56 50 75 81 56 70 63 54 70 35 36 30 26 24 25 28 19.3 1.92 BDL 6
1,2 Dichloropropane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 26 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.6
1,2,4-Trimethylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL 8.3 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.211 J BDL 20
1,2-Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 5.5 5.4 BRL 7.0 5.4 BRL 4.08 0.422 J BDL 20
1,4 Dichlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.33 BDL BDL 6
2-Chlorotoluene NI BRL BRL 38 BRL BRL BRL BRL 44 48 87 41 34 J 62 80 64 82 77 72 120 58 56 46 52 48 43 42 40 4.06 37.9 J 100
4-Chlorotoluene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 2.04 0.238 J BDL 24
4-Isopropyltoluene NI BRL BRL BRL BRL 131 BRL BRL 25 J 5.7 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 25
Acetone NI BRL BRL 2,090 BRL BRL 2,100 BRL 710 430 1,100 850 580 1,300 1,500 610 360 430 BRL BRL BRL 110 BRL BRL 55 110 130 130 20.5 BDL 6,000
Benzene NI BRL BRL 131 BRL 12.1 BRL 110 120 90 170 120 110 160 210 130 160 170 140 180 91 68 56 50 45 66 67 53.8 5.96 50.7 1
bis (2-Ethylhexyl) phthalate NI BRL BRL NA NA NA NA BRL NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA NA NA NA NA NA BRL NA NA NA NA 3
Chlorobenzene NI BRL BRL BRL BRL BRL BRL BRL BRL 45 34 J 24 J 29 J 16 J BRL BRL 43 24 36 BRL 41 65 72 80 73 82 26 60.8 5.56 BDL 50
Chloroethane NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3,000
Chloromethane NI BRL BRL 41 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
cis-1,2-Dichloroethylene NI BRL BRL BRL BRL BRL BRL 0.09 100 86 120 140 170 420 380 130 240 140 130 190 100 130 110 81 110 130 120 88.7 BDL 77.5 70
Diisoprophyl ether (DIPE)NI BRL BRL BRL BRL BRL BRL BRL BRL 87 200 96 80 140 170 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL NA NA BDL BDL 600
Ethylbenzene NI BRL BRL 129 BRL 137 BRL 130 110 BRL BRL BRL BRL BRL BRL 130 170 170 140 180 BRL 120 100 100 90 98 74 45.5 6.9 78.7 600
Isopropylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Methanol NI BRL 3,400,000 4,260,000 33,500,000 BRL 22,700,000 26,300,000 24,300,000 19,400,000 35,600,000 23,700,000 34,700,000 31,000,000 31,000,000 25,300,000 24,200,000 19,900,000 10,400,000 16,700,000 17,700,000 14,100,000 4,160,000 15,400,000 13,400,000 10,600,000 16,600,000 11,400,000 280,000 13,800 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NI BRL BRL BRL BRL BRL BRL BRL 380 190 490 300 BRL BRL 820 360 BRL 250 BRL BRL BRL BRL BRL BRL BRL BRL 31 J 31 J BDL 1640 4,000
Methyl butyl ketone (2-Hexanone)NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 40
Methylene chloride NI BRL BRL BRL BRL BRL BRL BRL BRL 8.4 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 3.87 0.504 J BDL 5
Naphthalene NI BRL BRL 198 578 287 630 BRL 350 210 320 140 240 55 64 300 330 350 330 520 300 19 66 290 92 250 36 307 14.6 219 6
n-Butanol NI BRL BRL BRL NA NA NA NA NA NA NA NA NA NA 290,000 NA 26,000 53,000 100,000 ND 100,000 220,000 240,000 130,000 32000 A 25,000 12,000 459 BDL NA 590
n-Butylbenzene NI BRL BRL BRL BRL BRL BRL BRL BRL 5.7 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Tetrachloroethene NI BRL BRL 89 BRL BRL BRL 91 J 50 46 74 63 52 94 120 88 94 75 75 85 33 46 31 28 23 20 18 8.75 1.17 BDL 0.7
Toluene NI BRL BRL 580 398 542 500 430 470 470 670 440 370 640 760 430 600 550 480 560 330 310 280 230 260 260 250 228 25.8 241 600
Trichloroethene NI BRL BRL BRL BRL BRL BRL BRL BRL 11 J BRL BRL BRL 14 J BRL BRL BRL 13 J BRL BRL BRL 10 8.5 7.3 8.4 8.8 9.2 7.7 0.869 BDL 3
Vinyl chloride NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 8.7 BRL BRL BRL BRL 16 2.9 J 1.44 BDL BDL 0.03
Xylenes NI BRL BRL 244 BRL 458 BRL BRL 200 206 269 140 J 202 141 J 136 J 92 130 118 J 158 140 85 140 107 111 93 99 58 69.6 6.53 63 J 500
MTBE NI NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA NA 88 BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 20
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
GCLs = Gross Contaminant Levels, effective March 7, 2022
Bold = Concentration exceeds the 2L Standard
Highlighted = Concentration exceeds the GCL
BRL = Below the reporting limit of the method of analysis
BDL = Below laboratory method detection limit
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
A = n-Butanol saturated the detector. The resulting estimated concentration is bias low.
2L
STANDARDS
ANALYTICAL RESULTS
CMW-9
TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/11/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI NI BRL BRL BRL BRL BRL BRL BRL 0.53 J BRL BRL BRL 3.9 J BRL BRL 4.0 4.0 3.2 BRL 4.0 BRL 3.2 2.7 2.4 2.2 2.5 2.5 BDL BDL 6
1,2,4-Trimethylbenzene NI NI BRL BRL BRL BRL BRL BRL BRL BQL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.22 J 0.22 J BDL BDL 400
1,2-Dichlorobenzene NI NI BRL 19 32.9 35.4 37 27 21 21 18 18 18 16 18 17 14 13 13 14 11 BRL 9.7 8.7 8.0 12.0 9.2 7.82 BDL BDL 20
1,2-Dichloropropane NI NI BRL BRL BRL BRL 1.2 BRL BRL 0.70 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.5 0.447 J BDL BDL 0.6
1,4-Dichlorobenzene NI NI BRL BRL BRL BRL 1.1 BRL BRL 0.95 J BRL BRL BRL BRL BRL BRL BRL 1.2 BRL BRL 1.1 BRL BRL BRL 0.95 1.1 0.98 0.939 BDL BDL 6
2-Chlorotoluene NI NI BRL BRL BRL BRL 2.3 BRL BRL 2.8 BRL BRL BRL 4.3 J BRL BRL 5.8 4.8 5.3 BRL 4.0 BRL BRL BRL 3.6 4.2 3.8 3.38 BDL BDL 100
4-Chlorotoluene NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 24
4-Isopropyltoluene NI NI BRL BRL BRL BRL BRL BRL NA BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 25
Acetone NI NI BRL BRL BRL BRL BRL 680 760 570 670 720 750 320 580 470 240 250 340 440 340 BRL 62 48 100 120 250 1510 65.7 863 6,000
Benzene NI NI BRL 3.0 2.4 BRL 2.1 3.2 J 5.1 J 5.6 7.5 J 9.8 J 9.9 J 12 14 13 15 14 12 11 6.7 BRL 3.6 2.8 7.4 6.2 5.2 5.18 BDL BDL 1
bis (2-Ethylhexyl) phthalate NI NI BRL NA NA NA NA BRL NA NA BRL BRL BRL BRL BRL BRL NA NA NA NA NA NA NA NA NA BRL NA NA NA NA 3
Chlorobenzene NI NI 7.0 13 2.1 21 23 BRL 7.6 J 15 22 22 22 30 35 37 39 35 33 31 21 BRL 20 16 31 21 23 21.9 BDL 6.09 50
Chloroethane NI NI BRL BRL BRL BRL BRL BRL BRL 0.61 J BRL BRL BRL BRL BRL BRL BRL 1.4 J BRL BRL 3.0 BRL 2.5 2.5 BRL 1.4 1.3 J 1.25 BDL BDL 3,000
Chloromethane NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
cis-1,2-Dichloroethylene NI NI BRL 2.0 22.2 BRL BRL BRL BRL 2.8 BRL 6.5 J BRL 13 11 10 17 11 9.2 BRL 7.4 BRL 8.4 6.8 8.7 7 6.1 4.8 BDL BDL 70
Ethylbenzene NI NI BRL 2.0 2.41 BRL 2.3 3.6 J BRL 3.6 16 BRL 5.3 J 6.9 J 7.4 J 6.8 J 7.0 8.5 7.2 BRL BRL BRL 44 3.3 6.7 3.3 J 4.6 3.14 BDL BDL 600
Diisoprophyl ether (DIPE)NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 1.6 1.3 BRL BRL BRL BRL BDL BDL 70
Isopropylbenzene NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Methanol NI NI BRL 21,100,000 BRL 8,100 BRL 1,120 BRL 15,000 29,000 5,020 9,060 29,200 5,240 11,300 19,800 12,700 BRL 76,900 307,000 96,400 14,300 3,860 11,200 11,300 4,900 BRL 17,000 7.19 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NI NI BRL BRL BRL BRL BRL BRL 420 230 410 470 38 J 130 250 200 68 110 150 BRL 100 82 J BRL BRL BRL BRL 100 358 16.2 221 4,000
Methyl butyl ketone (2-Hexanone)NI NI BRL BRL BRL BRL BRL 40 56 30 65 48 J BRL BRL 24 J 26 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 61.1 1.52 J 35.2 J 40
Methylene chloride NI NI BRL BRL BRL BRL BRL BRL BRL 0.59 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 5
Naphthalene NI NI BRL 3.0 3.2 BRL 4.1 BRL BRL 4.5 BRL 10 13 17 14 16 4.9 J 15 16 23 15 BRL 19 16 2.5 6.9 1.4 12.6 BDL BDL 6
n-Butanol NI NI BRL BRL NA NA NA NA NA NA NA NA NA NA 2,200 6,600 4,800 990 13,000 ND 26,000 100,000 32,000 32,000 550 A 56 ND ND BDL NA 590
n-Butylbenzene NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Tetrachloroethene NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.85 J BRL BRL BRL BRL 0.69 0.55 0.72 2.9 J 0.61 0.466 J BDL BDL 0.7
Toluene NI NI BRL BRL BRL BRL BRL 7.7 7.8 J 9.9 9.2 J 14 15 21 22 20 21 21 18 19 13 BRL 12 8.0 18 14 14 11.1 BDL 4.10 J 600
Trichloroethene NI NI BRL BRL BRL BRL BRL BRL BRL 0.51 J BRL BRL BRL BRL BRL BRL BRL 0.95 J BRL BRL BRL BRL 0.52 BRL BRL 0.62 0.58 0.433 J BDL BDL 3
Vinyl chloride NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.26 J BRL BDL BDL 0.03
Xylenes NI NI BRL 18 17.5 8.7 16.1 11.2 J 15 J 19.4 26 18 J 39 26.9 J 24 24 21 21 22.9 29 16.1 BRL 18 13.6 22 9.7 J 15 10.9 BDL BDL 500
MTBE NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.54 J BRL BRL BRL BRL BRL BRL BRL 0.46 J 0.44 J 0.46 J BDL BDL 20
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
Bold = Concentration exceeds the 2L Standard
BRL = Below the reporting limit of the method of analysis
BDL = Below laboratory method detection limit
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
A = n-Butanol saturated the detector. The resulting estimated concentration is bias low.
2L
STANDARDS
ANALYTICAL RESULTS
CMW-10

TABLE 4: HISTORICAL GROUNDWATER SAMPLE RESULTS
PARAMETER
LOCATION
DATE SAMPLED 01/11/94 05/13/94 08/14/03 11/05/04 11/17/05 12/19/06 07/16/08 02/17/09 09/01/09 02/17/10 07/06/10 01/20/11 07/21/11 02/03/12 12/13/12 07/24/13 02/05/14 07/16/14 02/25/15 07/16/15 03/02/16 08/05/16 02/16/17 07/17/17 06/19/18 05/30/19 05/01/20 05/13/21 05/26/22 06/27/23
1,1-Dichloroethane NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6
1,2,4-Trimethylbenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 400
1,2-Dichlorobenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 20
1,2-Dichloropropane NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.6
1,4-Dichlorobenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6
2-Chlorotoluene NI NI NI NI NI NI NI NI NI NI NI NI NI NI 0.52 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.27 J 0.47 J 0.321 J 0.312 J BDL 100
4-Chlorotoluene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 24
4-Isopropyltoluene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 25
Acetone NI NI NI NI NI NI NI NI NI NI NI NI NI NI 32 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 6,000
Benzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI 0.714 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.32 J BRL BDL BDL 1
bis (2-Ethylhexyl) phthalate NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL NA NA NA NA NA NA NA NA NA NA NA NA NA NA 3
Chlorobenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI 1.9 2.8 IH 2.6 1.6 0.97 1.2 1.2 0.98 1.3 1.3 1.1 BRL 1.2 0.70 BDL 0.434 J 50
Chloroethane NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3,000
Chloromethane NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
cis-1,2-Dichloroethylene NI NI NI NI NI NI NI NI NI NI NI NI NI NI 0.86 J 0.55 J 0.52 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.230 J BDL 70
Ethylbenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI 0.70 J 0.61 IH,J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 600
Diisoprophyl ether (DIPE)NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL NA 70
Isopropylbenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Methanol NI NI NI NI NI NI NI NI NI NI NI NI NI NI 1,270 BRL BRL BRL BRL 121 17,600 BRL BRL BRL BRL ND 5,100 BRL BDL 3.37 4,000
Methyl ethyl ketone (MEK, 2-Butanone)NI NI NI NI NI NI NI NI NI NI NI NI NI NI 10 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 4,000
Methyl butyl ketone (2-Hexanone)NI NI NI NI NI NI NI NI NI NI NI NI NI NI 1.7 J BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 40
Methylene chloride NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 5
Naphthalene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL 0.80 J BRL 0.96 J BRL BRL BDL BDL 6
n-Butanol NI NI NI NI NI NI NI NI NI NI NI NI NI NI 560 NA BRL 110 BRL BRL BRL 50 BRL 520 BRL 50 ND ND BDL NA 590
n-Butylbenzene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 70
Tetrachloroethene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.7
Toluene NI NI NI NI NI NI NI NI NI NI NI NI NI NI 1.5 BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 600
Trichloroethene NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 3
Vinyl chloride NI NI NI NI NI NI NI NI NI NI NI NI NI NI BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 0.03
Xylenes NI NI NI NI NI NI NI NI NI NI NI NI NI NI 1.4 J 0.65 IH,J BRL BRL BRL 0.63 J BRL BRL BRL BRL BRL BRL BRL BRL BDL BDL 500
NOTES:
Concentrations are presented in micrograms per liter, analagous to parts per billion
2L Standard = 15 A NCAC 2L.0202 Water Quality Standard, effective April 1, 2022
Bold = Concentration exceeds the 2L Standard
BRL = Below the reporting limit of the method of analysis
BDL = Below laboratory method detection limit
J = The analyte was positively identified, but the value is estimated below the reporting limit
NA = Sample not analyzed for this compound
ND = Analyte was not detected
IH = Internal standard response below the QC limit. Analyte reported with possible high bias.
NI = Not Installed
2L
STANDARDS
ANALYTICAL RESULTS
CMW-11

20221873.001A| RAL23R156786 August 4, 2023
© 2023 Kleinfelder www.kleinfelder.com

FIGURES

PROJ. NO: 20221873.001A
SCALE: 1" = 2000'APPROVED BY:
DRAWN BY: TLB
3200 GATEWAY CENTRE BLVD., SUITE 100
MORRISVILLE, NORTH CAROLINA 27560
PHONE: [phone]
CHEMOL COMPANY, INC.
2410 RANDOLPH AVENUE
GREENSBORO, NORTH CAROLINA
DATE: 07-27-2023
FIGURE 1
SITE LOCATION MAP
CA
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RENDERING
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ENGINEERINGOFFICE
MAINTENANCE
MANUFACTURING
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CMW-1
CMW-2(E)
CMW-4
CMW-5
CMW-6
CMW-7
CMW-8
CMW-10
CMW-11
FORMER
ALCOHOL
USTs
PROJ. NO: 20221873.001A
SCALE: 1" = 100'APPROVED BY:
DRAWN BY: TLB
3200 GATEWAY CENTRE BLVD., SUITE 100
MORRISVILLE, NORTH CAROLINA 27560
PHONE: [phone]
CHEMOL COMPANY, INC.
2410 RANDOLPH AVENUE
GREENSBORO, NORTH CAROLINA
DATE: 07-27-2023
FIGURE 2
MONITORING WELL LOCATION MAP
LEGEND
MONITORING WELL LOCATIONCMW-7
CA
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BUILDING
CMW-11
NM
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CMW-9
CMW-3763.45
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LEGEND
MONITORING WELL LOCATION WITHCMW-7
761.99 GROUNDWATER ELEVATION IN FEET
GROUNDWATER ELEVATION
CONTOUR LINE
GROUNDWATER FLOW DIRECTION
NOTES:
GROUNDWATER ELEVATIONS WERE MEASURED ON JUNE 27, 2023.
MONITORING WELLS CMW-9 AND CMW-10 ARE DEEP WELLS SCREENED BELOW THE WATER TABLE.
GROUNDWATER ELEVATIONS IN CMW-9 AND CMW-10 WERE NOT USED TO ESTIMATE CONTOUR LINES.
SCALE: 1" = 100'APPROVED BY:
3200 GATEWAY CENTRE BLVD., SUITE 100
MORRISVILLE, NORTH CAROLINA 27560
PHONE: [phone]
CHEMOL COMPANY, INC.
2410 RANDOLPH AVENUE
GREENSBORO, NORTH CAROLINA
FIGURE 3
POTENTIOMETRIC SURFACE MAP
PROJ. NO: 20221873.001ADRAWN BY: TLB/CTH
DATE: 07-27-2023CA
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NOT MEASUREDNM
MONITORING WELL CMW-5 COULD NOT BE LOCATED.
0
13,800
0
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10,000,000
15,000,000
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25,000,000
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35,000,000
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FIGURE 4
CONCENTRATION OF METHANOL
VERSUS TIME IN CMW-9
Methanol
7.19
0
50,000
100,000
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300,000
350,000
CO
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FIGURE 5
CONCENTRATION OF METHANOL
VERSUS TIME IN CMW-10
Series1
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FIGURE 6
TETRACHLOROETHENE, BENZENE, AND CIS-1,2-DCE
CONCENTRATIONS VERSUS TIME IN CMW-9
Tetrachloroethene
Benzene
cis-1,2-Dichloroethylene
0
50
100
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350
400
450
500
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FIGURE 7
VINYL CHLORIDE AND CIS-1,2-DCE CONCENTRATIONS
VERSUS TIME IN CMW-3
Vinyl Chloride
cis-1,2-Dichloroethene

20221873.001A| RAL23R156786 August 4, 2023
© 2023 Kleinfelder www.kleinfelder.com

APPENDIX A
LABORATORY REPORT

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.

7/10/2023
Kleinfelder SE, Inc. (Morrisville) Adam Mahr
3200 Gateway Centre Blvd. Suite 100 Morrisville, NC, 27560
Ref: Analytical Testing
Lab Report Number: 23-180-0008 Client Project Description: VP Greensboro - Chemol GW Monitoring
Dear Adam Mahr:
Waypoint Analytical, LLC (Charlotte) received sample(s) on 6/29/2023 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 53
Certification Summary
Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC
State Program Lab ID Expiration Date
07/31/202337735State ProgramNorth Carolina
12/31/2023402State ProgramNorth Carolina
07/31/202399012State ProgramSouth Carolina
12/31/202299012State ProgramSouth Carolina
Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN
State Program Lab ID Expiration Date
02/29/202440750State ProgramAlabama
02/07/202488-0650State ProgramArkansas
06/30/20232904State ProgramCalifornia
06/30/2024E871157State Program - NELAPFlorida
11/14/2025C044State ProgramGeorgia
06/30/202404015State ProgramGeorgia
10/10/2023200078State Program - NELAPIllinois
06/30/202480215State ProgramKentucky
12/31/2023KY90047State ProgramKentucky
12/31/2023LA037State Program - NELAPLouisiana
06/30/202404015State Program - NELAPLouisiana
11/14/2025MSState ProgramMississippi
07/31/202347701State ProgramNorth Carolina
12/31/2023415State ProgramNorth Carolina
05/31/202468-03195State Program - NELAPPennsylvania
06/30/202384002State ProgramSouth Carolina
11/14/202502027State ProgramTennessee
09/30/2023T104704180State Program - NELAPTexas
06/30/202400106State ProgramVirginia
09/14/2023460181State Program - NELAPVirginia
Page 1 of 1 00016/23-180-0008
Page 2 of 53
Report Number:
Sample Summary Table
Client Project Description:
23-180-0008
VP Greensboro - Chemol GW Monitoring
Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID
06/27/2023 13:40Aqueous 99493 CMW-2 (E)06/29/2023 12:10
06/27/2023 14:00Aqueous 99494 CMW-3 06/29/2023 12:10
06/27/2023 15:15Aqueous 99495 CMW-4 06/29/2023 12:10
06/27/2023 16:25Aqueous 99496 CMW-6 06/29/2023 12:10
06/27/2023 13:05Aqueous 99497 CMW-9 06/29/2023 12:10
06/27/2023 13:05Aqueous 99497 CMW-9 06/29/2023 12:10 8015C WP MTN -
06/27/2023 15:30Aqueous 99498 CMW-10 06/29/2023 12:10
06/27/2023 15:30Aqueous 99498 CMW-10 06/29/2023 12:10 8015C WP MTN -
06/27/2023 16:00Aqueous 99499 CMW-11 06/29/2023 12:10
06/27/2023 16:00Aqueous 99499 CMW-11 06/29/2023 12:10 8015C WP MTN -
06/27/2023Aqueous 99500 Trip Blank 06/29/2023 12:10
WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN
Page 3 of 53
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-180-0008
Report Limit
Project:VP Greensboro - Chemol GW Monitoring
V 99493CMW-2 (E)
J4.33 07/05/2023 17:058260DBenzeneµg/L 1.80
12.3 07/05/2023 17:058260DChlorobenzeneµg/L 1.90
J3.58 07/05/2023 17:058260Dcis-1,2-Dichloroethene µg/L 2.00
J3.57 07/05/2023 17:058260DEthylbenzeneµg/L 1.70
5.92 07/05/2023 17:058260DTolueneµg/L 2.20
J4.63 07/05/2023 17:058260DVinyl Chloride µg/L 1.70
V 99494CMW-3
54.8 07/03/2023 13:408260DBenzeneµg/L 18.0
J33.4 07/03/2023 13:408260D2-Chlorotoluene µg/L 20.0
J44.0 07/03/2023 13:408260Dcis-1,2-Dichloroethene µg/L 20.0
91.9 07/03/2023 13:408260DEthylbenzeneµg/L 17.0
266 07/03/2023 13:408260DTolueneµg/L 22.0
J45.4 07/03/2023 13:408260Dm,p-Xylene µg/L 42.0
J45.4 07/03/2023 13:408260DXylene (Total)µg/L 21.0
V 99495CMW-4
J0.355 07/03/2023 10:218260Dcis-1,2-Dichloroethene µg/L 0.200
V 99496CMW-6
535 07/03/2023 14:058260DAcetoneµg/L 180
J32707/03/2023 14:058260DMethyl Ethyl Ketone (MEK)µg/L 71.0
J27.2 07/03/2023 14:058260DTolueneµg/L 22.0
V 99497CMW-9
13800 07/06/2023 15:518015CMethanolmg/L 500
13800 07/06/2023 15:518015CMethanolmg/L 500
50.7 07/03/2023 14:298260DBenzeneµg/L 18.0
J37.9 07/03/2023 14:298260D2-Chlorotoluene µg/L 20.0
77.5 07/03/2023 14:298260Dcis-1,2-Dichloroethene µg/L 20.0
78.7 07/03/2023 14:298260DEthylbenzeneµg/L 17.0
1640 07/03/2023 14:298260D2-Hexanone µg/L 38.0
219 07/03/2023 14:298260DNaphthaleneµg/L 47.0
241 07/03/2023 14:298260DTolueneµg/L 22.0
J63.0 07/03/2023 14:298260Dm,p-Xylene µg/L 42.0
J63.0 07/03/2023 14:298260DXylene (Total)µg/L 21.0
V 99498CMW-10
7.19 07/05/2023 19:138015CMethanolmg/L 0.50
Page 4 of 53
Summary of Detected Analytes
QualifiersAnalyzedUnitsResult
Report Number:
Client Sample ID
Method Parameters
Lab Sample ID
23-180-0008
Report Limit
Project:VP Greensboro - Chemol GW Monitoring
V 99498CMW-10
7.19 07/05/2023 19:138015CMethanolmg/L 0.50
863 07/05/2023 17:308260DAcetoneµg/L 18.0
6.09 07/05/2023 17:308260DChlorobenzeneµg/L 1.90
J35.2 07/05/2023 17:308260D2-Hexanone µg/L 3.80
221 07/05/2023 17:308260DMethyl Ethyl Ketone (MEK)µg/L 7.10
J4.10 07/05/2023 17:308260DTolueneµg/L 2.20
V 99499CMW-11
3.37 07/05/2023 19:328015CMethanolmg/L 0.50
3.37 07/05/2023 19:328015CMethanolmg/L 0.50
J0.434 07/05/2023 15:258260DChlorobenzeneµg/L 0.190
Page 5 of 53

Client: Kleinfelder SE, Inc. (Morrisville) CASE NARRATIVE
Project: VP Greensboro - Chemol GW Monitoring Lab Report Number: 23-180-0008
Date: 7/7/2023
Volatile Organic Compounds - GC/MS Method 8260D Sample 99494 (CMW-3) QC Batch No: V34973/V34969
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Sample 99496 (CMW-6) QC Batch No: V34973/V34969
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Sample 99497 (CMW-9) QC Batch No: V34973/V34969
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly.
Sample 99493 (CMW-2 (E)) QC Batch No: V35002/V34999
The sample was diluted due to the nature of the sample matrix. Reporting limits have been adjusted accordingly. Diluted due to non target compounds.

Page 6 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-2 (E)
99493 Matrix:
6/27/2023 13:40
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<18.0 µg/L 18.0 50.0Acetone 10 07/05/23 17:05 V35002MSA
<20.0 µg/L 20.0 50.0Acrolein 10 07/05/23 17:05 V35002MSA
<2.30 µg/L 2.30 50.0Acrylonitrile 10 07/05/23 17:05 V35002MSA
4.33 J µg/L 1.80 5.00Benzene 10 07/05/23 17:05 V35002MSA
<2.10 µg/L 2.10 5.00Bromobenzene 10 07/05/23 17:05 V35002MSA
<4.20 µg/L 4.20 10.0Bromochloromethane 10 07/05/23 17:05 V35002MSA
<1.60 µg/L 1.60 5.00Bromodichloromethane 10 07/05/23 17:05 V35002MSA
<15.0 µg/L 15.0 50.0Bromoform 10 07/05/23 17:05 V35002MSA
<2.80 µg/L 2.80 10.0Bromomethane 10 07/05/23 17:05 V35002MSA
<1.85 µg/L 1.85 10.0n-Butylbenzene 10 07/05/23 17:05 V35002MSA
<2.00 µg/L 2.00 5.00sec-Butyl benzene 10 07/05/23 17:05 V35002MSA
<9.20 µg/L 9.20 20.0tert-Butyl benzene 10 07/05/23 17:05 V35002MSA
<1.50 µg/L 1.50 50.0Carbon Disulfide 10 07/05/23 17:05 V35002MSA
<1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 07/05/23 17:05 V35002MSA
12.3 µg/L 1.90 5.00Chlorobenzene 10 07/05/23 17:05 V35002MSA
<1.90 µg/L 1.90 5.00Chlorodibromomethane 10 07/05/23 17:05 V35002MSA
<4.30 µg/L 4.30 10.0Chloroethane 10 07/05/23 17:05 V35002MSA
<2.20 µg/L 2.20 5.00Chloroform 10 07/05/23 17:05 V35002MSA
<2.20 µg/L 2.20 5.00Chloromethane 10 07/05/23 17:05 V35002MSA
<2.00 µg/L 2.00 5.002-Chlorotoluene 10 07/05/23 17:05 V35002MSA
<2.00 µg/L 2.00 5.004-Chlorotoluene 10 07/05/23 17:05 V35002MSA
<9.60 µg/L 9.60 50.0Di-Isopropyl Ether (DIPE)10 07/05/23 17:05 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 7 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-2 (E)
99493 Matrix:
6/27/2023 13:40
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 07/05/23 17:05 V35002MSA
<2.00 µg/L 2.00 5.001,2-Dibromoethane 10 07/05/23 17:05 V35002MSA
<2.30 µg/L 2.30 5.00Dibromomethane 10 07/05/23 17:05 V35002MSA
<2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 07/05/23 17:05 V35002MSA
<1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 07/05/23 17:05 V35002MSA
<2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 07/05/23 17:05 V35002MSA
<12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 07/05/23 17:05 V35002MSA
<2.40 µg/L 2.40 5.001,1-Dichloroethane 10 07/05/23 17:05 V35002MSA
<1.50 µg/L 1.50 5.001,2-Dichloroethane 10 07/05/23 17:05 V35002MSA
<1.50 µg/L 1.50 5.001,1-Dichloroethene 10 07/05/23 17:05 V35002MSA
3.58 J µg/L 2.00 5.00cis-1,2-Dichloroethene 10 07/05/23 17:05 V35002MSA
<1.80 µg/L 1.80 5.00trans-1,2-Dichloroethene 10 07/05/23 17:05 V35002MSA
<1.90 µg/L 1.90 5.001,2-Dichloropropane 10 07/05/23 17:05 V35002MSA
<1.30 µg/L 1.30 5.001,3-Dichloropropane 10 07/05/23 17:05 V35002MSA
<2.10 µg/L 2.10 20.02,2-Dichloropropane 10 07/05/23 17:05 V35002MSA
<2.00 µg/L 2.00 5.001,1-Dichloropropene 10 07/05/23 17:05 V35002MSA
<2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 07/05/23 17:05 V35002MSA
<1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 07/05/23 17:05 V35002MSA
3.57 J µg/L 1.70 5.00Ethylbenzene 10 07/05/23 17:05 V35002MSA
<18.0 µg/L 18.0 100Ethyl Tertiary Butyl Ether (ETBE)10 07/05/23 17:05 V35002MSA
<3.50 µg/L 3.50 20.0Hexachlorobutadiene 10 07/05/23 17:05 V35002MSA
<13.0 µg/L 13.0 100n-Hexane 10 07/05/23 17:05 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 8 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-2 (E)
99493 Matrix:
6/27/2023 13:40
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<3.80 µg/L 3.80 50.02-Hexanone 10 07/05/23 17:05 V35002MSA
<1.80 µg/L 1.80 50.0Isopropylbenzene 10 07/05/23 17:05 V35002MSA
<0.890 µg/L 0.890 5.004-Isopropyl toluene 10 07/05/23 17:05 V35002MSA
<7.10 µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 07/05/23 17:05 V35002MSA
<1.40 µg/L 1.40 5.00Methyl tert-butyl ether (MTBE)10 07/05/23 17:05 V35002MSA
<10.0 µg/L 10.0 50.04-Methyl-2-Pentanone 10 07/05/23 17:05 V35002MSA
<3.30 µg/L 3.30 10.0Methylene Chloride 10 07/05/23 17:05 V35002MSA
<4.70 µg/L 4.70 10.0Naphthalene 10 07/05/23 17:05 V35002MSA
<1.90 µg/L 1.90 5.00n-Propylbenzene 10 07/05/23 17:05 V35002MSA
<2.20 µg/L 2.20 5.00Styrene 10 07/05/23 17:05 V35002MSA
<1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 07/05/23 17:05 V35002MSA
<1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 07/05/23 17:05 V35002MSA
<2.20 µg/L 2.20 5.00Tetrachloroethene 10 07/05/23 17:05 V35002MSA
5.92 µg/L 2.20 5.00Toluene 10 07/05/23 17:05 V35002MSA
<3.80 µg/L 3.80 20.01,2,3-Trichlorobenzene 10 07/05/23 17:05 V35002MSA
<3.10 µg/L 3.10 10.01,2,4-Trichlorobenzene 10 07/05/23 17:05 V35002MSA
<1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 07/05/23 17:05 V35002MSA
<0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 07/05/23 17:05 V35002MSA
<1.80 µg/L 1.80 5.00Trichloroethene 10 07/05/23 17:05 V35002MSA
<1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 07/05/23 17:05 V35002MSA
<2.70 µg/L 2.70 10.01,2,3-Trichloropropane 10 07/05/23 17:05 V35002MSA
<1.90 µg/L 1.90 5.001,2,4-Trimethylbenzene 10 07/05/23 17:05 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 9 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-2 (E)
99493 Matrix:
6/27/2023 13:40
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<1.80 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 07/05/23 17:05 V35002MSA
<10.0 µg/L 10.0 20.0Vinyl Acetate 10 07/05/23 17:05 V35002MSA
4.63 J µg/L 1.70 5.00Vinyl Chloride 10 07/05/23 17:05 V35002MSA
<2.10 µg/L 2.10 5.00o-Xylene 10 07/05/23 17:05 V35002MSA
<4.20 µg/L 4.20 10.0m,p-Xylene 10 07/05/23 17:05 V35002MSA
<2.1 µg/L 2.10 5.00Xylene (Total)10 07/05/23 17:05 V35002
Surrogate: 4-Bromofluorobenzene 100 Limits: 80-124%07/05/23 17:0510 MSA V35002
Surrogate: Dibromofluoromethane 97.0 Limits: 75-129%07/05/23 17:0510 MSA V35002
Surrogate: 1,2-Dichloroethane - d4 97.6 Limits: 63-136%07/05/23 17:0510 MSA V35002
Surrogate: Toluene-d8 95.4 Limits: 77-123%07/05/23 17:0510 MSA V35002
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 10 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-3
99494 Matrix:
6/27/2023 14:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<180 µg/L 180 500Acetone 100 07/03/23 13:40 V34973ENM
<200 µg/L 200 500Acrolein 100 07/03/23 13:40 V34973ENM
<23.0 µg/L 23.0 500Acrylonitrile 100 07/03/23 13:40 V34973ENM
54.8 µg/L 18.0 50.0Benzene 100 07/03/23 13:40 V34973ENM
<21.0 µg/L 21.0 50.0Bromobenzene 100 07/03/23 13:40 V34973ENM
<42.0 µg/L 42.0 100Bromochloromethane 100 07/03/23 13:40 V34973ENM
<16.0 µg/L 16.0 50.0Bromodichloromethane 100 07/03/23 13:40 V34973ENM
<150 µg/L 150 500Bromoform 100 07/03/23 13:40 V34973ENM
<28.0 µg/L 28.0 100Bromomethane 100 07/03/23 13:40 V34973ENM
<18.5 µg/L 18.5 100n-Butylbenzene 100 07/03/23 13:40 V34973ENM
<20.0 µg/L 20.0 50.0sec-Butyl benzene 100 07/03/23 13:40 V34973ENM
<92.0 µg/L 92.0 200tert-Butyl benzene 100 07/03/23 13:40 V34973ENM
<15.0 µg/L 15.0 500Carbon Disulfide 100 07/03/23 13:40 V34973ENM
<18.0 µg/L 18.0 50.0Carbon Tetrachloride 100 07/03/23 13:40 V34973ENM
<19.0 µg/L 19.0 50.0Chlorobenzene 100 07/03/23 13:40 V34973ENM
<19.0 µg/L 19.0 50.0Chlorodibromomethane 100 07/03/23 13:40 V34973ENM
<43.0 µg/L 43.0 100Chloroethane 100 07/03/23 13:40 V34973ENM
<22.0 µg/L 22.0 50.0Chloroform 100 07/03/23 13:40 V34973ENM
<22.0 µg/L 22.0 50.0Chloromethane 100 07/03/23 13:40 V34973ENM
33.4 J µg/L 20.0 50.02-Chlorotoluene 100 07/03/23 13:40 V34973ENM
<20.0 µg/L 20.0 50.04-Chlorotoluene 100 07/03/23 13:40 V34973ENM
<96.0 µg/L 96.0 500Di-Isopropyl Ether (DIPE)100 07/03/23 13:40 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 11 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-3
99494 Matrix:
6/27/2023 14:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<110 µg/L 110 2001,2-Dibromo-3-Chloropropane 100 07/03/23 13:40 V34973ENM
<20.0 µg/L 20.0 50.01,2-Dibromoethane 100 07/03/23 13:40 V34973ENM
<23.0 µg/L 23.0 50.0Dibromomethane 100 07/03/23 13:40 V34973ENM
<22.0 µg/L 22.0 50.01,2-Dichlorobenzene 100 07/03/23 13:40 V34973ENM
<19.0 µg/L 19.0 50.01,3-Dichlorobenzene 100 07/03/23 13:40 V34973ENM
<21.0 µg/L 21.0 50.01,4-Dichlorobenzene 100 07/03/23 13:40 V34973ENM
<120 µg/L 120 500Dichlorodifluoromethane 100 07/03/23 13:40 V34973ENM
<24.0 µg/L 24.0 50.01,1-Dichloroethane 100 07/03/23 13:40 V34973ENM
<15.0 µg/L 15.0 50.01,2-Dichloroethane 100 07/03/23 13:40 V34973ENM
<15.0 µg/L 15.0 50.01,1-Dichloroethene 100 07/03/23 13:40 V34973ENM
44.0 J µg/L 20.0 50.0cis-1,2-Dichloroethene 100 07/03/23 13:40 V34973ENM
<18.0 µg/L 18.0 50.0trans-1,2-Dichloroethene 100 07/03/23 13:40 V34973ENM
<19.0 µg/L 19.0 50.01,2-Dichloropropane 100 07/03/23 13:40 V34973ENM
<13.0 µg/L 13.0 50.01,3-Dichloropropane 100 07/03/23 13:40 V34973ENM
<21.0 µg/L 21.0 2002,2-Dichloropropane 100 07/03/23 13:40 V34973ENM
<20.0 µg/L 20.0 50.01,1-Dichloropropene 100 07/03/23 13:40 V34973ENM
<21.0 µg/L 21.0 50.0cis-1,3-Dichloropropene 100 07/03/23 13:40 V34973ENM
<15.0 µg/L 15.0 50.0trans-1,3-Dichloropropene 100 07/03/23 13:40 V34973ENM
91.9 µg/L 17.0 50.0Ethylbenzene 100 07/03/23 13:40 V34973ENM
<180 µg/L 180 1000Ethyl Tertiary Butyl Ether (ETBE)100 07/03/23 13:40 V34973ENM
<35.0 µg/L 35.0 200Hexachlorobutadiene 100 07/03/23 13:40 V34973ENM
<130 µg/L 130 1000n-Hexane 100 07/03/23 13:40 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 12 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-3
99494 Matrix:
6/27/2023 14:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<38.0 µg/L 38.0 5002-Hexanone 100 07/03/23 13:40 V34973ENM
<18.0 µg/L 18.0 500Isopropylbenzene 100 07/03/23 13:40 V34973ENM
<8.90 µg/L 8.90 50.04-Isopropyl toluene 100 07/03/23 13:40 V34973ENM
<71.0 µg/L 71.0 500Methyl Ethyl Ketone (MEK)100 07/03/23 13:40 V34973ENM
<14.0 µg/L 14.0 50.0Methyl tert-butyl ether (MTBE)100 07/03/23 13:40 V34973ENM
<100 µg/L 100 5004-Methyl-2-Pentanone 100 07/03/23 13:40 V34973ENM
<33.0 µg/L 33.0 100Methylene Chloride 100 07/03/23 13:40 V34973ENM
<47.0 µg/L 47.0 100Naphthalene 100 07/03/23 13:40 V34973ENM
<19.0 µg/L 19.0 50.0n-Propylbenzene 100 07/03/23 13:40 V34973ENM
<22.0 µg/L 22.0 50.0Styrene 100 07/03/23 13:40 V34973ENM
<16.0 µg/L 16.0 50.01,1,1,2-Tetrachloroethane 100 07/03/23 13:40 V34973ENM
<16.0 µg/L 16.0 50.01,1,2,2-Tetrachloroethane 100 07/03/23 13:40 V34973ENM
<22.0 µg/L 22.0 50.0Tetrachloroethene 100 07/03/23 13:40 V34973ENM
266 µg/L 22.0 50.0Toluene 100 07/03/23 13:40 V34973ENM
<38.0 µg/L 38.0 2001,2,3-Trichlorobenzene 100 07/03/23 13:40 V34973ENM
<31.0 µg/L 31.0 1001,2,4-Trichlorobenzene 100 07/03/23 13:40 V34973ENM
<16.0 µg/L 16.0 50.01,1,1-Trichloroethane 100 07/03/23 13:40 V34973ENM
<9.60 µg/L 9.60 50.01,1,2-Trichloroethane 100 07/03/23 13:40 V34973ENM
<18.0 µg/L 18.0 50.0Trichloroethene 100 07/03/23 13:40 V34973ENM
<18.0 µg/L 18.0 50.0Trichlorofluoromethane 100 07/03/23 13:40 V34973ENM
<27.0 µg/L 27.0 1001,2,3-Trichloropropane 100 07/03/23 13:40 V34973ENM
<19.0 µg/L 19.0 50.01,2,4-Trimethylbenzene 100 07/03/23 13:40 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 13 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-3
99494 Matrix:
6/27/2023 14:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<18.0 µg/L 18.0 50.01,3,5-Trimethylbenzene 100 07/03/23 13:40 V34973ENM
<100 µg/L 100 200Vinyl Acetate 100 07/03/23 13:40 V34973ENM
<17.0 µg/L 17.0 50.0Vinyl Chloride 100 07/03/23 13:40 V34973ENM
<21.0 µg/L 21.0 50.0o-Xylene 100 07/03/23 13:40 V34973ENM
45.4 J µg/L 42.0 100m,p-Xylene 100 07/03/23 13:40 V34973ENM
45.4 J µg/L 21.0 50.0Xylene (Total)100 07/03/23 13:40 V34973
Surrogate: 4-Bromofluorobenzene 104 Limits: 80-124%07/03/23 13:40100 ENM V34973
Surrogate: Dibromofluoromethane 97.2 Limits: 75-129%07/03/23 13:40100 ENM V34973
Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 63-136%07/03/23 13:40100 ENM V34973
Surrogate: Toluene-d8 91.8 Limits: 77-123%07/03/23 13:40100 ENM V34973
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 14 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-4
99495 Matrix:
6/27/2023 15:15
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<1.80 µg/L 1.80 5.00Acetone 1 07/03/23 10:21 V34973ENM
<2.00 µg/L 2.00 5.00Acrolein 1 07/03/23 10:21 V34973ENM
<0.230 µg/L 0.230 5.00Acrylonitrile 1 07/03/23 10:21 V34973ENM
<0.180 µg/L 0.180 0.500Benzene 1 07/03/23 10:21 V34973ENM
<0.210 µg/L 0.210 0.500Bromobenzene 1 07/03/23 10:21 V34973ENM
<0.420 µg/L 0.420 1.00Bromochloromethane 1 07/03/23 10:21 V34973ENM
<0.160 µg/L 0.160 0.500Bromodichloromethane 1 07/03/23 10:21 V34973ENM
<1.50 µg/L 1.50 5.00Bromoform 1 07/03/23 10:21 V34973ENM
<0.280 µg/L 0.280 1.00Bromomethane 1 07/03/23 10:21 V34973ENM
<0.185 µg/L 0.185 1.00n-Butylbenzene 1 07/03/23 10:21 V34973ENM
<0.200 µg/L 0.200 0.500sec-Butyl benzene 1 07/03/23 10:21 V34973ENM
<0.920 µg/L 0.920 2.00tert-Butyl benzene 1 07/03/23 10:21 V34973ENM
<0.150 µg/L 0.150 5.00Carbon Disulfide 1 07/03/23 10:21 V34973ENM
<0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 07/03/23 10:21 V34973ENM
<0.190 µg/L 0.190 0.500Chlorobenzene 1 07/03/23 10:21 V34973ENM
<0.190 µg/L 0.190 0.500Chlorodibromomethane 1 07/03/23 10:21 V34973ENM
<0.430 µg/L 0.430 1.00Chloroethane 1 07/03/23 10:21 V34973ENM
<0.220 µg/L 0.220 0.500Chloroform 1 07/03/23 10:21 V34973ENM
<0.220 µg/L 0.220 0.500Chloromethane 1 07/03/23 10:21 V34973ENM
<0.200 µg/L 0.200 0.5002-Chlorotoluene 1 07/03/23 10:21 V34973ENM
<0.200 µg/L 0.200 0.5004-Chlorotoluene 1 07/03/23 10:21 V34973ENM
<0.960 µg/L 0.960 5.00Di-Isopropyl Ether (DIPE)1 07/03/23 10:21 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 15 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-4
99495 Matrix:
6/27/2023 15:15
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 07/03/23 10:21 V34973ENM
<0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 07/03/23 10:21 V34973ENM
<0.230 µg/L 0.230 0.500Dibromomethane 1 07/03/23 10:21 V34973ENM
<0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 07/03/23 10:21 V34973ENM
<0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 07/03/23 10:21 V34973ENM
<0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 07/03/23 10:21 V34973ENM
<1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 07/03/23 10:21 V34973ENM
<0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 07/03/23 10:21 V34973ENM
<0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 07/03/23 10:21 V34973ENM
<0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 07/03/23 10:21 V34973ENM
0.355 J µg/L 0.200 0.500cis-1,2-Dichloroethene 1 07/03/23 10:21 V34973ENM
<0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 07/03/23 10:21 V34973ENM
<0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 07/03/23 10:21 V34973ENM
<0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 07/03/23 10:21 V34973ENM
<0.210 µg/L 0.210 2.002,2-Dichloropropane 1 07/03/23 10:21 V34973ENM
<0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 07/03/23 10:21 V34973ENM
<0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 07/03/23 10:21 V34973ENM
<0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 07/03/23 10:21 V34973ENM
<0.170 µg/L 0.170 0.500Ethylbenzene 1 07/03/23 10:21 V34973ENM
<1.80 µg/L 1.80 10.0Ethyl Tertiary Butyl Ether (ETBE)1 07/03/23 10:21 V34973ENM
<0.350 µg/L 0.350 2.00Hexachlorobutadiene 1 07/03/23 10:21 V34973ENM
<1.30 µg/L 1.30 10.0n-Hexane 1 07/03/23 10:21 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 16 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-4
99495 Matrix:
6/27/2023 15:15
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<0.380 µg/L 0.380 5.002-Hexanone 1 07/03/23 10:21 V34973ENM
<0.180 µg/L 0.180 5.00Isopropylbenzene 1 07/03/23 10:21 V34973ENM
<0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 07/03/23 10:21 V34973ENM
<0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 07/03/23 10:21 V34973ENM
<0.140 µg/L 0.140 0.500Methyl tert-butyl ether (MTBE)1 07/03/23 10:21 V34973ENM
<1.00 µg/L 1.00 5.004-Methyl-2-Pentanone 1 07/03/23 10:21 V34973ENM
<0.330 µg/L 0.330 1.00Methylene Chloride 1 07/03/23 10:21 V34973ENM
<0.470 µg/L 0.470 1.00Naphthalene 1 07/03/23 10:21 V34973ENM
<0.190 µg/L 0.190 0.500n-Propylbenzene 1 07/03/23 10:21 V34973ENM
<0.220 µg/L 0.220 0.500Styrene 1 07/03/23 10:21 V34973ENM
<0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 07/03/23 10:21 V34973ENM
<0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 07/03/23 10:21 V34973ENM
<0.220 µg/L 0.220 0.500Tetrachloroethene 1 07/03/23 10:21 V34973ENM
<0.220 µg/L 0.220 0.500Toluene 1 07/03/23 10:21 V34973ENM
<0.380 µg/L 0.380 2.001,2,3-Trichlorobenzene 1 07/03/23 10:21 V34973ENM
<0.310 µg/L 0.310 1.001,2,4-Trichlorobenzene 1 07/03/23 10:21 V34973ENM
<0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 07/03/23 10:21 V34973ENM
<0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 07/03/23 10:21 V34973ENM
<0.180 µg/L 0.180 0.500Trichloroethene 1 07/03/23 10:21 V34973ENM
<0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 07/03/23 10:21 V34973ENM
<0.270 µg/L 0.270 1.001,2,3-Trichloropropane 1 07/03/23 10:21 V34973ENM
<0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 07/03/23 10:21 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 17 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-4
99495 Matrix:
6/27/2023 15:15
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 07/03/23 10:21 V34973ENM
<1.00 µg/L 1.00 2.00Vinyl Acetate 1 07/03/23 10:21 V34973ENM
<0.170 µg/L 0.170 0.500Vinyl Chloride 1 07/03/23 10:21 V34973ENM
<0.210 µg/L 0.210 0.500o-Xylene 1 07/03/23 10:21 V34973ENM
<0.420 µg/L 0.420 1.00m,p-Xylene 1 07/03/23 10:21 V34973ENM
<0.21 µg/L 0.210 0.500Xylene (Total)1 07/03/23 10:21 V34973
Surrogate: 4-Bromofluorobenzene 102 Limits: 80-124%07/03/23 10:211 ENM V34973
Surrogate: Dibromofluoromethane 95.2 Limits: 75-129%07/03/23 10:211 ENM V34973
Surrogate: 1,2-Dichloroethane - d4 99.8 Limits: 63-136%07/03/23 10:211 ENM V34973
Surrogate: Toluene-d8 94.8 Limits: 77-123%07/03/23 10:211 ENM V34973
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 18 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-6
99496 Matrix:
6/27/2023 16:25
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
535 µg/L 180 500Acetone 100 07/03/23 14:05 V34973ENM
<200 µg/L 200 500Acrolein 100 07/03/23 14:05 V34973ENM
<23.0 µg/L 23.0 500Acrylonitrile 100 07/03/23 14:05 V34973ENM
<18.0 µg/L 18.0 50.0Benzene 100 07/03/23 14:05 V34973ENM
<21.0 µg/L 21.0 50.0Bromobenzene 100 07/03/23 14:05 V34973ENM
<42.0 µg/L 42.0 100Bromochloromethane 100 07/03/23 14:05 V34973ENM
<16.0 µg/L 16.0 50.0Bromodichloromethane 100 07/03/23 14:05 V34973ENM
<150 µg/L 150 500Bromoform 100 07/03/23 14:05 V34973ENM
<28.0 µg/L 28.0 100Bromomethane 100 07/03/23 14:05 V34973ENM
<18.5 µg/L 18.5 100n-Butylbenzene 100 07/03/23 14:05 V34973ENM
<20.0 µg/L 20.0 50.0sec-Butyl benzene 100 07/03/23 14:05 V34973ENM
<92.0 µg/L 92.0 200tert-Butyl benzene 100 07/03/23 14:05 V34973ENM
<15.0 µg/L 15.0 500Carbon Disulfide 100 07/03/23 14:05 V34973ENM
<18.0 µg/L 18.0 50.0Carbon Tetrachloride 100 07/03/23 14:05 V34973ENM
<19.0 µg/L 19.0 50.0Chlorobenzene 100 07/03/23 14:05 V34973ENM
<19.0 µg/L 19.0 50.0Chlorodibromomethane 100 07/03/23 14:05 V34973ENM
<43.0 µg/L 43.0 100Chloroethane 100 07/03/23 14:05 V34973ENM
<22.0 µg/L 22.0 50.0Chloroform 100 07/03/23 14:05 V34973ENM
<22.0 µg/L 22.0 50.0Chloromethane 100 07/03/23 14:05 V34973ENM
<20.0 µg/L 20.0 50.02-Chlorotoluene 100 07/03/23 14:05 V34973ENM
<20.0 µg/L 20.0 50.04-Chlorotoluene 100 07/03/23 14:05 V34973ENM
<96.0 µg/L 96.0 500Di-Isopropyl Ether (DIPE)100 07/03/23 14:05 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 19 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-6
99496 Matrix:
6/27/2023 16:25
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<110 µg/L 110 2001,2-Dibromo-3-Chloropropane 100 07/03/23 14:05 V34973ENM
<20.0 µg/L 20.0 50.01,2-Dibromoethane 100 07/03/23 14:05 V34973ENM
<23.0 µg/L 23.0 50.0Dibromomethane 100 07/03/23 14:05 V34973ENM
<22.0 µg/L 22.0 50.01,2-Dichlorobenzene 100 07/03/23 14:05 V34973ENM
<19.0 µg/L 19.0 50.01,3-Dichlorobenzene 100 07/03/23 14:05 V34973ENM
<21.0 µg/L 21.0 50.01,4-Dichlorobenzene 100 07/03/23 14:05 V34973ENM
<120 µg/L 120 500Dichlorodifluoromethane 100 07/03/23 14:05 V34973ENM
<24.0 µg/L 24.0 50.01,1-Dichloroethane 100 07/03/23 14:05 V34973ENM
<15.0 µg/L 15.0 50.01,2-Dichloroethane 100 07/03/23 14:05 V34973ENM
<15.0 µg/L 15.0 50.01,1-Dichloroethene 100 07/03/23 14:05 V34973ENM
<20.0 µg/L 20.0 50.0cis-1,2-Dichloroethene 100 07/03/23 14:05 V34973ENM
<18.0 µg/L 18.0 50.0trans-1,2-Dichloroethene 100 07/03/23 14:05 V34973ENM
<19.0 µg/L 19.0 50.01,2-Dichloropropane 100 07/03/23 14:05 V34973ENM
<13.0 µg/L 13.0 50.01,3-Dichloropropane 100 07/03/23 14:05 V34973ENM
<21.0 µg/L 21.0 2002,2-Dichloropropane 100 07/03/23 14:05 V34973ENM
<20.0 µg/L 20.0 50.01,1-Dichloropropene 100 07/03/23 14:05 V34973ENM
<21.0 µg/L 21.0 50.0cis-1,3-Dichloropropene 100 07/03/23 14:05 V34973ENM
<15.0 µg/L 15.0 50.0trans-1,3-Dichloropropene 100 07/03/23 14:05 V34973ENM
<17.0 µg/L 17.0 50.0Ethylbenzene 100 07/03/23 14:05 V34973ENM
<180 µg/L 180 1000Ethyl Tertiary Butyl Ether (ETBE)100 07/03/23 14:05 V34973ENM
<35.0 µg/L 35.0 200Hexachlorobutadiene 100 07/03/23 14:05 V34973ENM
<130 µg/L 130 1000n-Hexane 100 07/03/23 14:05 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 20 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-6
99496 Matrix:
6/27/2023 16:25
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<38.0 µg/L 38.0 5002-Hexanone 100 07/03/23 14:05 V34973ENM
<18.0 µg/L 18.0 500Isopropylbenzene 100 07/03/23 14:05 V34973ENM
<8.90 µg/L 8.90 50.04-Isopropyl toluene 100 07/03/23 14:05 V34973ENM
327 J µg/L 71.0 500Methyl Ethyl Ketone (MEK)100 07/03/23 14:05 V34973ENM
<14.0 µg/L 14.0 50.0Methyl tert-butyl ether (MTBE)100 07/03/23 14:05 V34973ENM
<100 µg/L 100 5004-Methyl-2-Pentanone 100 07/03/23 14:05 V34973ENM
<33.0 µg/L 33.0 100Methylene Chloride 100 07/03/23 14:05 V34973ENM
<47.0 µg/L 47.0 100Naphthalene 100 07/03/23 14:05 V34973ENM
<19.0 µg/L 19.0 50.0n-Propylbenzene 100 07/03/23 14:05 V34973ENM
<22.0 µg/L 22.0 50.0Styrene 100 07/03/23 14:05 V34973ENM
<16.0 µg/L 16.0 50.01,1,1,2-Tetrachloroethane 100 07/03/23 14:05 V34973ENM
<16.0 µg/L 16.0 50.01,1,2,2-Tetrachloroethane 100 07/03/23 14:05 V34973ENM
<22.0 µg/L 22.0 50.0Tetrachloroethene 100 07/03/23 14:05 V34973ENM
27.2 J µg/L 22.0 50.0Toluene 100 07/03/23 14:05 V34973ENM
<38.0 µg/L 38.0 2001,2,3-Trichlorobenzene 100 07/03/23 14:05 V34973ENM
<31.0 µg/L 31.0 1001,2,4-Trichlorobenzene 100 07/03/23 14:05 V34973ENM
<16.0 µg/L 16.0 50.01,1,1-Trichloroethane 100 07/03/23 14:05 V34973ENM
<9.60 µg/L 9.60 50.01,1,2-Trichloroethane 100 07/03/23 14:05 V34973ENM
<18.0 µg/L 18.0 50.0Trichloroethene 100 07/03/23 14:05 V34973ENM
<18.0 µg/L 18.0 50.0Trichlorofluoromethane 100 07/03/23 14:05 V34973ENM
<27.0 µg/L 27.0 1001,2,3-Trichloropropane 100 07/03/23 14:05 V34973ENM
<19.0 µg/L 19.0 50.01,2,4-Trimethylbenzene 100 07/03/23 14:05 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 21 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-6
99496 Matrix:
6/27/2023 16:25
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<18.0 µg/L 18.0 50.01,3,5-Trimethylbenzene 100 07/03/23 14:05 V34973ENM
<100 µg/L 100 200Vinyl Acetate 100 07/03/23 14:05 V34973ENM
<17.0 µg/L 17.0 50.0Vinyl Chloride 100 07/03/23 14:05 V34973ENM
<21.0 µg/L 21.0 50.0o-Xylene 100 07/03/23 14:05 V34973ENM
<42.0 µg/L 42.0 100m,p-Xylene 100 07/03/23 14:05 V34973ENM
<21 µg/L 21.0 50.0Xylene (Total)100 07/03/23 14:05 V34973
Surrogate: 4-Bromofluorobenzene 100 Limits: 80-124%07/03/23 14:05100 ENM V34973
Surrogate: Dibromofluoromethane 96.0 Limits: 75-129%07/03/23 14:05100 ENM V34973
Surrogate: 1,2-Dichloroethane - d4 99.2 Limits: 63-136%07/03/23 14:05100 ENM V34973
Surrogate: Toluene-d8 94.0 Limits: 77-123%07/03/23 14:05100 ENM V34973
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 22 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-9
99497 Matrix:
6/27/2023 13:05
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5021
8015C Prep Batch(es):L690743 07/03/23 11:35
13800 mg/L 500 1000Methanol 1000 07/06/23 15:51 L691228KDL
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<180 µg/L 180 500Acetone 100 07/03/23 14:29 V34973ENM
<200 µg/L 200 500Acrolein 100 07/03/23 14:29 V34973ENM
<23.0 µg/L 23.0 500Acrylonitrile 100 07/03/23 14:29 V34973ENM
50.7 µg/L 18.0 50.0Benzene 100 07/03/23 14:29 V34973ENM
<21.0 µg/L 21.0 50.0Bromobenzene 100 07/03/23 14:29 V34973ENM
<42.0 µg/L 42.0 100Bromochloromethane 100 07/03/23 14:29 V34973ENM
<16.0 µg/L 16.0 50.0Bromodichloromethane 100 07/03/23 14:29 V34973ENM
<150 µg/L 150 500Bromoform 100 07/03/23 14:29 V34973ENM
<28.0 µg/L 28.0 100Bromomethane 100 07/03/23 14:29 V34973ENM
<18.5 µg/L 18.5 100n-Butylbenzene 100 07/03/23 14:29 V34973ENM
<20.0 µg/L 20.0 50.0sec-Butyl benzene 100 07/03/23 14:29 V34973ENM
<92.0 µg/L 92.0 200tert-Butyl benzene 100 07/03/23 14:29 V34973ENM
<15.0 µg/L 15.0 500Carbon Disulfide 100 07/03/23 14:29 V34973ENM
<18.0 µg/L 18.0 50.0Carbon Tetrachloride 100 07/03/23 14:29 V34973ENM
<19.0 µg/L 19.0 50.0Chlorobenzene 100 07/03/23 14:29 V34973ENM
<19.0 µg/L 19.0 50.0Chlorodibromomethane 100 07/03/23 14:29 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 23 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-9
99497 Matrix:
6/27/2023 13:05
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<43.0 µg/L 43.0 100Chloroethane 100 07/03/23 14:29 V34973ENM
<22.0 µg/L 22.0 50.0Chloroform 100 07/03/23 14:29 V34973ENM
<22.0 µg/L 22.0 50.0Chloromethane 100 07/03/23 14:29 V34973ENM
37.9 J µg/L 20.0 50.02-Chlorotoluene 100 07/03/23 14:29 V34973ENM
<20.0 µg/L 20.0 50.04-Chlorotoluene 100 07/03/23 14:29 V34973ENM
<96.0 µg/L 96.0 500Di-Isopropyl Ether (DIPE)100 07/03/23 14:29 V34973ENM
<110 µg/L 110 2001,2-Dibromo-3-Chloropropane 100 07/03/23 14:29 V34973ENM
<20.0 µg/L 20.0 50.01,2-Dibromoethane 100 07/03/23 14:29 V34973ENM
<23.0 µg/L 23.0 50.0Dibromomethane 100 07/03/23 14:29 V34973ENM
<22.0 µg/L 22.0 50.01,2-Dichlorobenzene 100 07/03/23 14:29 V34973ENM
<19.0 µg/L 19.0 50.01,3-Dichlorobenzene 100 07/03/23 14:29 V34973ENM
<21.0 µg/L 21.0 50.01,4-Dichlorobenzene 100 07/03/23 14:29 V34973ENM
<120 µg/L 120 500Dichlorodifluoromethane 100 07/03/23 14:29 V34973ENM
<24.0 µg/L 24.0 50.01,1-Dichloroethane 100 07/03/23 14:29 V34973ENM
<15.0 µg/L 15.0 50.01,2-Dichloroethane 100 07/03/23 14:29 V34973ENM
<15.0 µg/L 15.0 50.01,1-Dichloroethene 100 07/03/23 14:29 V34973ENM
77.5 µg/L 20.0 50.0cis-1,2-Dichloroethene 100 07/03/23 14:29 V34973ENM
<18.0 µg/L 18.0 50.0trans-1,2-Dichloroethene 100 07/03/23 14:29 V34973ENM
<19.0 µg/L 19.0 50.01,2-Dichloropropane 100 07/03/23 14:29 V34973ENM
<13.0 µg/L 13.0 50.01,3-Dichloropropane 100 07/03/23 14:29 V34973ENM
<21.0 µg/L 21.0 2002,2-Dichloropropane 100 07/03/23 14:29 V34973ENM
<20.0 µg/L 20.0 50.01,1-Dichloropropene 100 07/03/23 14:29 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 24 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-9
99497 Matrix:
6/27/2023 13:05
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<21.0 µg/L 21.0 50.0cis-1,3-Dichloropropene 100 07/03/23 14:29 V34973ENM
<15.0 µg/L 15.0 50.0trans-1,3-Dichloropropene 100 07/03/23 14:29 V34973ENM
78.7 µg/L 17.0 50.0Ethylbenzene 100 07/03/23 14:29 V34973ENM
<180 µg/L 180 1000Ethyl Tertiary Butyl Ether (ETBE)100 07/03/23 14:29 V34973ENM
<35.0 µg/L 35.0 200Hexachlorobutadiene 100 07/03/23 14:29 V34973ENM
<130 µg/L 130 1000n-Hexane 100 07/03/23 14:29 V34973ENM
1640 µg/L 38.0 5002-Hexanone 100 07/03/23 14:29 V34973ENM
<18.0 µg/L 18.0 500Isopropylbenzene 100 07/03/23 14:29 V34973ENM
<8.90 µg/L 8.90 50.04-Isopropyl toluene 100 07/03/23 14:29 V34973ENM
<71.0 µg/L 71.0 500Methyl Ethyl Ketone (MEK)100 07/03/23 14:29 V34973ENM
<14.0 µg/L 14.0 50.0Methyl tert-butyl ether (MTBE)100 07/03/23 14:29 V34973ENM
<100 µg/L 100 5004-Methyl-2-Pentanone 100 07/03/23 14:29 V34973ENM
<33.0 µg/L 33.0 100Methylene Chloride 100 07/03/23 14:29 V34973ENM
219 µg/L 47.0 100Naphthalene 100 07/03/23 14:29 V34973ENM
<19.0 µg/L 19.0 50.0n-Propylbenzene 100 07/03/23 14:29 V34973ENM
<22.0 µg/L 22.0 50.0Styrene 100 07/03/23 14:29 V34973ENM
<16.0 µg/L 16.0 50.01,1,1,2-Tetrachloroethane 100 07/03/23 14:29 V34973ENM
<16.0 µg/L 16.0 50.01,1,2,2-Tetrachloroethane 100 07/03/23 14:29 V34973ENM
<22.0 µg/L 22.0 50.0Tetrachloroethene 100 07/03/23 14:29 V34973ENM
241 µg/L 22.0 50.0Toluene 100 07/03/23 14:29 V34973ENM
<38.0 µg/L 38.0 2001,2,3-Trichlorobenzene 100 07/03/23 14:29 V34973ENM
<31.0 µg/L 31.0 1001,2,4-Trichlorobenzene 100 07/03/23 14:29 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 25 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-9
99497 Matrix:
6/27/2023 13:05
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<16.0 µg/L 16.0 50.01,1,1-Trichloroethane 100 07/03/23 14:29 V34973ENM
<9.60 µg/L 9.60 50.01,1,2-Trichloroethane 100 07/03/23 14:29 V34973ENM
<18.0 µg/L 18.0 50.0Trichloroethene 100 07/03/23 14:29 V34973ENM
<18.0 µg/L 18.0 50.0Trichlorofluoromethane 100 07/03/23 14:29 V34973ENM
<27.0 µg/L 27.0 1001,2,3-Trichloropropane 100 07/03/23 14:29 V34973ENM
<19.0 µg/L 19.0 50.01,2,4-Trimethylbenzene 100 07/03/23 14:29 V34973ENM
<18.0 µg/L 18.0 50.01,3,5-Trimethylbenzene 100 07/03/23 14:29 V34973ENM
<100 µg/L 100 200Vinyl Acetate 100 07/03/23 14:29 V34973ENM
<17.0 µg/L 17.0 50.0Vinyl Chloride 100 07/03/23 14:29 V34973ENM
<21.0 µg/L 21.0 50.0o-Xylene 100 07/03/23 14:29 V34973ENM
63.0 J µg/L 42.0 100m,p-Xylene 100 07/03/23 14:29 V34973ENM
63.0 J µg/L 21.0 50.0Xylene (Total)100 07/03/23 14:29 V34973
Surrogate: 4-Bromofluorobenzene 102 Limits: 80-124%07/03/23 14:29100 ENM V34973
Surrogate: Dibromofluoromethane 97.8 Limits: 75-129%07/03/23 14:29100 ENM V34973
Surrogate: 1,2-Dichloroethane - d4 105 Limits: 63-136%07/03/23 14:29100 ENM V34973
Surrogate: Toluene-d8 91.8 Limits: 77-123%07/03/23 14:29100 ENM V34973
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 26 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-10
99498 Matrix:
6/27/2023 15:30
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5021
8015C Prep Batch(es):L690743 07/03/23 11:35
7.19 mg/L 0.50 1.00Methanol 1 07/05/23 19:13 L691228KDL
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
863 µg/L 18.0 50.0Acetone 10 07/05/23 17:30 V35002MSA
<20.0 µg/L 20.0 50.0Acrolein 10 07/05/23 17:30 V35002MSA
<2.30 µg/L 2.30 50.0Acrylonitrile 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 5.00Benzene 10 07/05/23 17:30 V35002MSA
<2.10 µg/L 2.10 5.00Bromobenzene 10 07/05/23 17:30 V35002MSA
<4.20 µg/L 4.20 10.0Bromochloromethane 10 07/05/23 17:30 V35002MSA
<1.60 µg/L 1.60 5.00Bromodichloromethane 10 07/05/23 17:30 V35002MSA
<15.0 µg/L 15.0 50.0Bromoform 10 07/05/23 17:30 V35002MSA
<2.80 µg/L 2.80 10.0Bromomethane 10 07/05/23 17:30 V35002MSA
<1.85 µg/L 1.85 10.0n-Butylbenzene 10 07/05/23 17:30 V35002MSA
<2.00 µg/L 2.00 5.00sec-Butyl benzene 10 07/05/23 17:30 V35002MSA
<9.20 µg/L 9.20 20.0tert-Butyl benzene 10 07/05/23 17:30 V35002MSA
<1.50 µg/L 1.50 50.0Carbon Disulfide 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 5.00Carbon Tetrachloride 10 07/05/23 17:30 V35002MSA
6.09 µg/L 1.90 5.00Chlorobenzene 10 07/05/23 17:30 V35002MSA
<1.90 µg/L 1.90 5.00Chlorodibromomethane 10 07/05/23 17:30 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 27 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-10
99498 Matrix:
6/27/2023 15:30
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<4.30 µg/L 4.30 10.0Chloroethane 10 07/05/23 17:30 V35002MSA
<2.20 µg/L 2.20 5.00Chloroform 10 07/05/23 17:30 V35002MSA
<2.20 µg/L 2.20 5.00Chloromethane 10 07/05/23 17:30 V35002MSA
<2.00 µg/L 2.00 5.002-Chlorotoluene 10 07/05/23 17:30 V35002MSA
<2.00 µg/L 2.00 5.004-Chlorotoluene 10 07/05/23 17:30 V35002MSA
<9.60 µg/L 9.60 50.0Di-Isopropyl Ether (DIPE)10 07/05/23 17:30 V35002MSA
<11.0 µg/L 11.0 20.01,2-Dibromo-3-Chloropropane 10 07/05/23 17:30 V35002MSA
<2.00 µg/L 2.00 5.001,2-Dibromoethane 10 07/05/23 17:30 V35002MSA
<2.30 µg/L 2.30 5.00Dibromomethane 10 07/05/23 17:30 V35002MSA
<2.20 µg/L 2.20 5.001,2-Dichlorobenzene 10 07/05/23 17:30 V35002MSA
<1.90 µg/L 1.90 5.001,3-Dichlorobenzene 10 07/05/23 17:30 V35002MSA
<2.10 µg/L 2.10 5.001,4-Dichlorobenzene 10 07/05/23 17:30 V35002MSA
<12.0 µg/L 12.0 50.0Dichlorodifluoromethane 10 07/05/23 17:30 V35002MSA
<2.40 µg/L 2.40 5.001,1-Dichloroethane 10 07/05/23 17:30 V35002MSA
<1.50 µg/L 1.50 5.001,2-Dichloroethane 10 07/05/23 17:30 V35002MSA
<1.50 µg/L 1.50 5.001,1-Dichloroethene 10 07/05/23 17:30 V35002MSA
<2.00 µg/L 2.00 5.00cis-1,2-Dichloroethene 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 5.00trans-1,2-Dichloroethene 10 07/05/23 17:30 V35002MSA
<1.90 µg/L 1.90 5.001,2-Dichloropropane 10 07/05/23 17:30 V35002MSA
<1.30 µg/L 1.30 5.001,3-Dichloropropane 10 07/05/23 17:30 V35002MSA
<2.10 µg/L 2.10 20.02,2-Dichloropropane 10 07/05/23 17:30 V35002MSA
<2.00 µg/L 2.00 5.001,1-Dichloropropene 10 07/05/23 17:30 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 28 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-10
99498 Matrix:
6/27/2023 15:30
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<2.10 µg/L 2.10 5.00cis-1,3-Dichloropropene 10 07/05/23 17:30 V35002MSA
<1.50 µg/L 1.50 5.00trans-1,3-Dichloropropene 10 07/05/23 17:30 V35002MSA
<1.70 µg/L 1.70 5.00Ethylbenzene 10 07/05/23 17:30 V35002MSA
<18.0 µg/L 18.0 100Ethyl Tertiary Butyl Ether (ETBE)10 07/05/23 17:30 V35002MSA
<3.50 µg/L 3.50 20.0Hexachlorobutadiene 10 07/05/23 17:30 V35002MSA
<13.0 µg/L 13.0 100n-Hexane 10 07/05/23 17:30 V35002MSA
35.2 J µg/L 3.80 50.02-Hexanone 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 50.0Isopropylbenzene 10 07/05/23 17:30 V35002MSA
<0.890 µg/L 0.890 5.004-Isopropyl toluene 10 07/05/23 17:30 V35002MSA
221 µg/L 7.10 50.0Methyl Ethyl Ketone (MEK)10 07/05/23 17:30 V35002MSA
<1.40 µg/L 1.40 5.00Methyl tert-butyl ether (MTBE)10 07/05/23 17:30 V35002MSA
<10.0 µg/L 10.0 50.04-Methyl-2-Pentanone 10 07/05/23 17:30 V35002MSA
<3.30 µg/L 3.30 10.0Methylene Chloride 10 07/05/23 17:30 V35002MSA
<4.70 µg/L 4.70 10.0Naphthalene 10 07/05/23 17:30 V35002MSA
<1.90 µg/L 1.90 5.00n-Propylbenzene 10 07/05/23 17:30 V35002MSA
<2.20 µg/L 2.20 5.00Styrene 10 07/05/23 17:30 V35002MSA
<1.60 µg/L 1.60 5.001,1,1,2-Tetrachloroethane 10 07/05/23 17:30 V35002MSA
<1.60 µg/L 1.60 5.001,1,2,2-Tetrachloroethane 10 07/05/23 17:30 V35002MSA
<2.20 µg/L 2.20 5.00Tetrachloroethene 10 07/05/23 17:30 V35002MSA
4.10 J µg/L 2.20 5.00Toluene 10 07/05/23 17:30 V35002MSA
<3.80 µg/L 3.80 20.01,2,3-Trichlorobenzene 10 07/05/23 17:30 V35002MSA
<3.10 µg/L 3.10 10.01,2,4-Trichlorobenzene 10 07/05/23 17:30 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 29 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-10
99498 Matrix:
6/27/2023 15:30
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<1.60 µg/L 1.60 5.001,1,1-Trichloroethane 10 07/05/23 17:30 V35002MSA
<0.960 µg/L 0.960 5.001,1,2-Trichloroethane 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 5.00Trichloroethene 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 5.00Trichlorofluoromethane 10 07/05/23 17:30 V35002MSA
<2.70 µg/L 2.70 10.01,2,3-Trichloropropane 10 07/05/23 17:30 V35002MSA
<1.90 µg/L 1.90 5.001,2,4-Trimethylbenzene 10 07/05/23 17:30 V35002MSA
<1.80 µg/L 1.80 5.001,3,5-Trimethylbenzene 10 07/05/23 17:30 V35002MSA
<10.0 µg/L 10.0 20.0Vinyl Acetate 10 07/05/23 17:30 V35002MSA
<1.70 µg/L 1.70 5.00Vinyl Chloride 10 07/05/23 17:30 V35002MSA
<2.10 µg/L 2.10 5.00o-Xylene 10 07/05/23 17:30 V35002MSA
<4.20 µg/L 4.20 10.0m,p-Xylene 10 07/05/23 17:30 V35002MSA
<2.1 µg/L 2.10 5.00Xylene (Total)10 07/05/23 17:30 V35002
Surrogate: 4-Bromofluorobenzene 103 Limits: 80-124%07/05/23 17:3010 MSA V35002
Surrogate: Dibromofluoromethane 96.8 Limits: 75-129%07/05/23 17:3010 MSA V35002
Surrogate: 1,2-Dichloroethane - d4 99.2 Limits: 63-136%07/05/23 17:3010 MSA V35002
Surrogate: Toluene-d8 95.4 Limits: 77-123%07/05/23 17:3010 MSA V35002
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 30 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-11
99499 Matrix:
6/27/2023 16:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5021
8015C Prep Batch(es):L690743 07/03/23 11:35
3.37 mg/L 0.50 1.00Methanol 1 07/05/23 19:32 L691228KDL
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<1.80 µg/L 1.80 5.00Acetone 1 07/05/23 15:25 V35002MSA
<2.00 µg/L 2.00 5.00Acrolein 1 07/05/23 15:25 V35002MSA
<0.230 µg/L 0.230 5.00Acrylonitrile 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 0.500Benzene 1 07/05/23 15:25 V35002MSA
<0.210 µg/L 0.210 0.500Bromobenzene 1 07/05/23 15:25 V35002MSA
<0.420 µg/L 0.420 1.00Bromochloromethane 1 07/05/23 15:25 V35002MSA
<0.160 µg/L 0.160 0.500Bromodichloromethane 1 07/05/23 15:25 V35002MSA
<1.50 µg/L 1.50 5.00Bromoform 1 07/05/23 15:25 V35002MSA
<0.280 µg/L 0.280 1.00Bromomethane 1 07/05/23 15:25 V35002MSA
<0.185 µg/L 0.185 1.00n-Butylbenzene 1 07/05/23 15:25 V35002MSA
<0.200 µg/L 0.200 0.500sec-Butyl benzene 1 07/05/23 15:25 V35002MSA
<0.920 µg/L 0.920 2.00tert-Butyl benzene 1 07/05/23 15:25 V35002MSA
<0.150 µg/L 0.150 5.00Carbon Disulfide 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 07/05/23 15:25 V35002MSA
0.434 J µg/L 0.190 0.500Chlorobenzene 1 07/05/23 15:25 V35002MSA
<0.190 µg/L 0.190 0.500Chlorodibromomethane 1 07/05/23 15:25 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 31 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-11
99499 Matrix:
6/27/2023 16:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<0.430 µg/L 0.430 1.00Chloroethane 1 07/05/23 15:25 V35002MSA
<0.220 µg/L 0.220 0.500Chloroform 1 07/05/23 15:25 V35002MSA
<0.220 µg/L 0.220 0.500Chloromethane 1 07/05/23 15:25 V35002MSA
<0.200 µg/L 0.200 0.5002-Chlorotoluene 1 07/05/23 15:25 V35002MSA
<0.200 µg/L 0.200 0.5004-Chlorotoluene 1 07/05/23 15:25 V35002MSA
<0.960 µg/L 0.960 5.00Di-Isopropyl Ether (DIPE)1 07/05/23 15:25 V35002MSA
<1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 07/05/23 15:25 V35002MSA
<0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 07/05/23 15:25 V35002MSA
<0.230 µg/L 0.230 0.500Dibromomethane 1 07/05/23 15:25 V35002MSA
<0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 07/05/23 15:25 V35002MSA
<0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 07/05/23 15:25 V35002MSA
<0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 07/05/23 15:25 V35002MSA
<1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 07/05/23 15:25 V35002MSA
<0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 07/05/23 15:25 V35002MSA
<0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 07/05/23 15:25 V35002MSA
<0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 07/05/23 15:25 V35002MSA
<0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 07/05/23 15:25 V35002MSA
<0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 07/05/23 15:25 V35002MSA
<0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 07/05/23 15:25 V35002MSA
<0.210 µg/L 0.210 2.002,2-Dichloropropane 1 07/05/23 15:25 V35002MSA
<0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 07/05/23 15:25 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 32 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-11
99499 Matrix:
6/27/2023 16:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 07/05/23 15:25 V35002MSA
<0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 07/05/23 15:25 V35002MSA
<0.170 µg/L 0.170 0.500Ethylbenzene 1 07/05/23 15:25 V35002MSA
<1.80 µg/L 1.80 10.0Ethyl Tertiary Butyl Ether (ETBE)1 07/05/23 15:25 V35002MSA
<0.350 µg/L 0.350 2.00Hexachlorobutadiene 1 07/05/23 15:25 V35002MSA
<1.30 µg/L 1.30 10.0n-Hexane 1 07/05/23 15:25 V35002MSA
<0.380 µg/L 0.380 5.002-Hexanone 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 5.00Isopropylbenzene 1 07/05/23 15:25 V35002MSA
<0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 07/05/23 15:25 V35002MSA
<0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 07/05/23 15:25 V35002MSA
<0.140 µg/L 0.140 0.500Methyl tert-butyl ether (MTBE)1 07/05/23 15:25 V35002MSA
<1.00 µg/L 1.00 5.004-Methyl-2-Pentanone 1 07/05/23 15:25 V35002MSA
<0.330 µg/L 0.330 1.00Methylene Chloride 1 07/05/23 15:25 V35002MSA
<0.470 µg/L 0.470 1.00Naphthalene 1 07/05/23 15:25 V35002MSA
<0.190 µg/L 0.190 0.500n-Propylbenzene 1 07/05/23 15:25 V35002MSA
<0.220 µg/L 0.220 0.500Styrene 1 07/05/23 15:25 V35002MSA
<0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 07/05/23 15:25 V35002MSA
<0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 07/05/23 15:25 V35002MSA
<0.220 µg/L 0.220 0.500Tetrachloroethene 1 07/05/23 15:25 V35002MSA
<0.220 µg/L 0.220 0.500Toluene 1 07/05/23 15:25 V35002MSA
<0.380 µg/L 0.380 2.001,2,3-Trichlorobenzene 1 07/05/23 15:25 V35002MSA
<0.310 µg/L 0.310 1.001,2,4-Trichlorobenzene 1 07/05/23 15:25 V35002MSA
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 33 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:CMW-11
99499 Matrix:
6/27/2023 16:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34999 07/05/23 09:00
<0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 07/05/23 15:25 V35002MSA
<0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 0.500Trichloroethene 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 07/05/23 15:25 V35002MSA
<0.270 µg/L 0.270 1.001,2,3-Trichloropropane 1 07/05/23 15:25 V35002MSA
<0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 07/05/23 15:25 V35002MSA
<0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 07/05/23 15:25 V35002MSA
<1.00 µg/L 1.00 2.00Vinyl Acetate 1 07/05/23 15:25 V35002MSA
<0.170 µg/L 0.170 0.500Vinyl Chloride 1 07/05/23 15:25 V35002MSA
<0.210 µg/L 0.210 0.500o-Xylene 1 07/05/23 15:25 V35002MSA
<0.420 µg/L 0.420 1.00m,p-Xylene 1 07/05/23 15:25 V35002MSA
<0.21 µg/L 0.210 0.500Xylene (Total)1 07/05/23 15:25 V35002
Surrogate: 4-Bromofluorobenzene 109 Limits: 80-124%07/05/23 15:251 MSA V35002
Surrogate: Dibromofluoromethane 95.8 Limits: 75-129%07/05/23 15:251 MSA V35002
Surrogate: 1,2-Dichloroethane - d4 97.0 Limits: 63-136%07/05/23 15:251 MSA V35002
Surrogate: Toluene-d8 98.8 Limits: 77-123%07/05/23 15:251 MSA V35002
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 34 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99500 Matrix:
6/27/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<1.80 µg/L 1.80 5.00Acetone 1 07/03/23 09:56 V34973ENM
<2.00 µg/L 2.00 5.00Acrolein 1 07/03/23 09:56 V34973ENM
<0.230 µg/L 0.230 5.00Acrylonitrile 1 07/03/23 09:56 V34973ENM
<0.180 µg/L 0.180 0.500Benzene 1 07/03/23 09:56 V34973ENM
<0.210 µg/L 0.210 0.500Bromobenzene 1 07/03/23 09:56 V34973ENM
<0.420 µg/L 0.420 1.00Bromochloromethane 1 07/03/23 09:56 V34973ENM
<0.160 µg/L 0.160 0.500Bromodichloromethane 1 07/03/23 09:56 V34973ENM
<1.50 µg/L 1.50 5.00Bromoform 1 07/03/23 09:56 V34973ENM
<0.280 µg/L 0.280 1.00Bromomethane 1 07/03/23 09:56 V34973ENM
<0.185 µg/L 0.185 1.00n-Butylbenzene 1 07/03/23 09:56 V34973ENM
<0.200 µg/L 0.200 0.500sec-Butyl benzene 1 07/03/23 09:56 V34973ENM
<0.920 µg/L 0.920 2.00tert-Butyl benzene 1 07/03/23 09:56 V34973ENM
<0.150 µg/L 0.150 5.00Carbon Disulfide 1 07/03/23 09:56 V34973ENM
<0.180 µg/L 0.180 0.500Carbon Tetrachloride 1 07/03/23 09:56 V34973ENM
<0.190 µg/L 0.190 0.500Chlorobenzene 1 07/03/23 09:56 V34973ENM
<0.190 µg/L 0.190 0.500Chlorodibromomethane 1 07/03/23 09:56 V34973ENM
<0.430 µg/L 0.430 1.00Chloroethane 1 07/03/23 09:56 V34973ENM
<0.220 µg/L 0.220 0.500Chloroform 1 07/03/23 09:56 V34973ENM
<0.220 µg/L 0.220 0.500Chloromethane 1 07/03/23 09:56 V34973ENM
<0.200 µg/L 0.200 0.5002-Chlorotoluene 1 07/03/23 09:56 V34973ENM
<0.200 µg/L 0.200 0.5004-Chlorotoluene 1 07/03/23 09:56 V34973ENM
<0.960 µg/L 0.960 5.00Di-Isopropyl Ether (DIPE)1 07/03/23 09:56 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 35 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99500 Matrix:
6/27/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<1.10 µg/L 1.10 2.001,2-Dibromo-3-Chloropropane 1 07/03/23 09:56 V34973ENM
<0.200 µg/L 0.200 0.5001,2-Dibromoethane 1 07/03/23 09:56 V34973ENM
<0.230 µg/L 0.230 0.500Dibromomethane 1 07/03/23 09:56 V34973ENM
<0.220 µg/L 0.220 0.5001,2-Dichlorobenzene 1 07/03/23 09:56 V34973ENM
<0.190 µg/L 0.190 0.5001,3-Dichlorobenzene 1 07/03/23 09:56 V34973ENM
<0.210 µg/L 0.210 0.5001,4-Dichlorobenzene 1 07/03/23 09:56 V34973ENM
<1.20 µg/L 1.20 5.00Dichlorodifluoromethane 1 07/03/23 09:56 V34973ENM
<0.240 µg/L 0.240 0.5001,1-Dichloroethane 1 07/03/23 09:56 V34973ENM
<0.150 µg/L 0.150 0.5001,2-Dichloroethane 1 07/03/23 09:56 V34973ENM
<0.150 µg/L 0.150 0.5001,1-Dichloroethene 1 07/03/23 09:56 V34973ENM
<0.200 µg/L 0.200 0.500cis-1,2-Dichloroethene 1 07/03/23 09:56 V34973ENM
<0.180 µg/L 0.180 0.500trans-1,2-Dichloroethene 1 07/03/23 09:56 V34973ENM
<0.190 µg/L 0.190 0.5001,2-Dichloropropane 1 07/03/23 09:56 V34973ENM
<0.130 µg/L 0.130 0.5001,3-Dichloropropane 1 07/03/23 09:56 V34973ENM
<0.210 µg/L 0.210 2.002,2-Dichloropropane 1 07/03/23 09:56 V34973ENM
<0.200 µg/L 0.200 0.5001,1-Dichloropropene 1 07/03/23 09:56 V34973ENM
<0.210 µg/L 0.210 0.500cis-1,3-Dichloropropene 1 07/03/23 09:56 V34973ENM
<0.150 µg/L 0.150 0.500trans-1,3-Dichloropropene 1 07/03/23 09:56 V34973ENM
<0.170 µg/L 0.170 0.500Ethylbenzene 1 07/03/23 09:56 V34973ENM
<1.80 µg/L 1.80 10.0Ethyl Tertiary Butyl Ether (ETBE)1 07/03/23 09:56 V34973ENM
<0.350 µg/L 0.350 2.00Hexachlorobutadiene 1 07/03/23 09:56 V34973ENM
<1.30 µg/L 1.30 10.0n-Hexane 1 07/03/23 09:56 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 36 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99500 Matrix:
6/27/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<0.380 µg/L 0.380 5.002-Hexanone 1 07/03/23 09:56 V34973ENM
<0.180 µg/L 0.180 5.00Isopropylbenzene 1 07/03/23 09:56 V34973ENM
<0.089 µg/L 0.089 0.5004-Isopropyl toluene 1 07/03/23 09:56 V34973ENM
<0.710 µg/L 0.710 5.00Methyl Ethyl Ketone (MEK)1 07/03/23 09:56 V34973ENM
<0.140 µg/L 0.140 0.500Methyl tert-butyl ether (MTBE)1 07/03/23 09:56 V34973ENM
<1.00 µg/L 1.00 5.004-Methyl-2-Pentanone 1 07/03/23 09:56 V34973ENM
<0.330 µg/L 0.330 1.00Methylene Chloride 1 07/03/23 09:56 V34973ENM
<0.470 µg/L 0.470 1.00Naphthalene 1 07/03/23 09:56 V34973ENM
<0.190 µg/L 0.190 0.500n-Propylbenzene 1 07/03/23 09:56 V34973ENM
<0.220 µg/L 0.220 0.500Styrene 1 07/03/23 09:56 V34973ENM
<0.160 µg/L 0.160 0.5001,1,1,2-Tetrachloroethane 1 07/03/23 09:56 V34973ENM
<0.160 µg/L 0.160 0.5001,1,2,2-Tetrachloroethane 1 07/03/23 09:56 V34973ENM
<0.220 µg/L 0.220 0.500Tetrachloroethene 1 07/03/23 09:56 V34973ENM
<0.220 µg/L 0.220 0.500Toluene 1 07/03/23 09:56 V34973ENM
<0.380 µg/L 0.380 2.001,2,3-Trichlorobenzene 1 07/03/23 09:56 V34973ENM
<0.310 µg/L 0.310 1.001,2,4-Trichlorobenzene 1 07/03/23 09:56 V34973ENM
<0.160 µg/L 0.160 0.5001,1,1-Trichloroethane 1 07/03/23 09:56 V34973ENM
<0.096 µg/L 0.096 0.5001,1,2-Trichloroethane 1 07/03/23 09:56 V34973ENM
<0.180 µg/L 0.180 0.500Trichloroethene 1 07/03/23 09:56 V34973ENM
<0.180 µg/L 0.180 0.500Trichlorofluoromethane 1 07/03/23 09:56 V34973ENM
<0.270 µg/L 0.270 1.001,2,3-Trichloropropane 1 07/03/23 09:56 V34973ENM
<0.190 µg/L 0.190 0.5001,2,4-Trimethylbenzene 1 07/03/23 09:56 V34973ENM
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 37 of 53
,
REPORT OF ANALYSISReport Number :
Project
Information :
NC 27560
23-180-0008
01123
Kleinfelder SE, Inc. (Morrisville)
3200 Gateway Centre Blvd. Suite 100
Adam Mahr
Morrisville
Received : 06/29/2023
VP Greensboro - Chemol GW Monitoring
Report Date : 07/10/2023
Sample ID :
Lab No :
Sampled:Trip Blank
99500 Matrix:
6/27/2023 0:00
Aqueous
Analytical Method:
Prep Method:
Test Results Units MDL MQL By Analytical
Batch
Date / Time
Analyzed
DF
5030B
8260D Prep Batch(es):V34969 07/02/23 09:00
<0.180 µg/L 0.180 0.5001,3,5-Trimethylbenzene 1 07/03/23 09:56 V34973ENM
<1.00 µg/L 1.00 2.00Vinyl Acetate 1 07/03/23 09:56 V34973ENM
<0.170 µg/L 0.170 0.500Vinyl Chloride 1 07/03/23 09:56 V34973ENM
<0.210 µg/L 0.210 0.500o-Xylene 1 07/03/23 09:56 V34973ENM
<0.420 µg/L 0.420 1.00m,p-Xylene 1 07/03/23 09:56 V34973ENM
<0.21 µg/L 0.210 0.500Xylene (Total)1 07/03/23 09:56 V34973
Surrogate: 4-Bromofluorobenzene 100 Limits: 80-124%07/03/23 09:561 ENM V34973
Surrogate: Dibromofluoromethane 95.0 Limits: 75-129%07/03/23 09:561 ENM V34973
Surrogate: 1,2-Dichloroethane - d4 97.6 Limits: 63-136%07/03/23 09:561 ENM V34973
Surrogate: Toluene-d8 95.2 Limits: 77-123%07/03/23 09:561 ENM V34973
Qualifiers/
Definitions
Estimated valueJDilution FactorDF
Method Quantitation LimitMQL
Page 38 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
VOC Organics by GC/FID
8015C
L691228QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5021
QC Prep:L690743
Associated Lab Samples: 99497, 99498, 99499
LRB-L690743 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
07/05/23 14:201.000.50<0.50mg/LMethanol
LCS-L690743Laboratory Control Sample
Parameter
LCS %RecLCS
Result
Spike
Conc.Units
% Rec
Limits
89.444.750.0mg/LMethanol 70-130
L 94479-MS-L690743 L 94479-MSD-L690743Matrix Spike & Matrix Spike Duplicate
MS Result
Parameter
Max
RPD
MS
%Rec
MSD
Result
MSD
Spike
Conc.
MS Spike
Conc.ResultUnits
%Rec
Limits
MSD
%Rec RPD
54.8 83.656.950.050.013.0mg/LMethanol 87.8 60-140 3.7 30.0
Page 1 of 13Date:07/10/2023 10:38 AM
Page 39 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V34973QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34969
Associated Lab Samples: 99494, 99495, 99496, 99497, 99500
LRB-V34969 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/03/23 07:025.001.80<1.80µg/LAcetone
07/03/23 07:025.002.00<2.00µg/LAcrolein
07/03/23 07:025.000.230<0.230µg/LAcrylonitrile
07/03/23 07:020.5000.180<0.180µg/LBenzene
07/03/23 07:020.5000.210<0.210µg/LBromobenzene
07/03/23 07:021.000.420<0.420µg/LBromochloromethane
07/03/23 07:020.5000.160<0.160µg/LBromodichloromethane
07/03/23 07:025.001.50<1.50µg/LBromoform
07/03/23 07:021.000.280<0.280µg/LBromomethane
07/03/23 07:021.000.185<0.185µg/Ln-Butylbenzene
07/03/23 07:020.5000.200<0.200µg/Lsec-Butyl benzene
07/03/23 07:022.000.920<0.920µg/Ltert-Butyl benzene
07/03/23 07:025.000.150<0.150µg/LCarbon Disulfide
07/03/23 07:020.5000.180<0.180µg/LCarbon Tetrachloride
07/03/23 07:020.5000.190<0.190µg/LChlorobenzene
07/03/23 07:020.5000.190<0.190µg/LChlorodibromomethane
07/03/23 07:021.000.430<0.430µg/LChloroethane
07/03/23 07:020.5000.220<0.220µg/LChloroform
07/03/23 07:020.5000.220<0.220µg/LChloromethane
07/03/23 07:020.5000.200<0.200µg/L2-Chlorotoluene
07/03/23 07:020.5000.200<0.200µg/L4-Chlorotoluene
07/03/23 07:025.000.960<0.960µg/LDi-Isopropyl Ether (DIPE)
07/03/23 07:022.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane
07/03/23 07:020.5000.200<0.200µg/L1,2-Dibromoethane
07/03/23 07:020.5000.230<0.230µg/LDibromomethane
07/03/23 07:020.5000.220<0.220µg/L1,2-Dichlorobenzene
07/03/23 07:020.5000.190<0.190µg/L1,3-Dichlorobenzene
Page 2 of 13Date:07/10/2023 10:38 AM
Page 40 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V34973QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34969
Associated Lab Samples: 99494, 99495, 99496, 99497, 99500
LRB-V34969 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/03/23 07:020.5000.210<0.210µg/L1,4-Dichlorobenzene
07/03/23 07:025.001.20<1.20µg/LDichlorodifluoromethane
07/03/23 07:020.5000.240<0.240µg/L1,1-Dichloroethane
07/03/23 07:020.5000.150<0.150µg/L1,2-Dichloroethane
07/03/23 07:020.5000.150<0.150µg/L1,1-Dichloroethene
07/03/23 07:020.5000.200<0.200µg/Lcis-1,2-Dichloroethene
07/03/23 07:020.5000.180<0.180µg/Ltrans-1,2-Dichloroethene
07/03/23 07:020.5000.190<0.190µg/L1,2-Dichloropropane
07/03/23 07:020.5000.130<0.130µg/L1,3-Dichloropropane
07/03/23 07:022.000.210<0.210µg/L2,2-Dichloropropane
07/03/23 07:020.5000.200<0.200µg/L1,1-Dichloropropene
07/03/23 07:020.5000.210<0.210µg/Lcis-1,3-Dichloropropene
07/03/23 07:020.5000.150<0.150µg/Ltrans-1,3-Dichloropropene
07/03/23 07:020.5000.170<0.170µg/LEthylbenzene
07/03/23 07:0210.01.80<1.80µg/LEthyl Tertiary Butyl Ether (ETBE)
07/03/23 07:022.000.350<0.350µg/LHexachlorobutadiene
07/03/23 07:0210.01.30<1.30µg/Ln-Hexane
07/03/23 07:025.000.380<0.380µg/L2-Hexanone
07/03/23 07:025.000.180<0.180µg/LIsopropylbenzene
07/03/23 07:020.5000.089<0.089µg/L4-Isopropyl toluene
07/03/23 07:025.000.710<0.710µg/LMethyl Ethyl Ketone (MEK)
07/03/23 07:020.5000.140<0.140µg/LMethyl tert-butyl ether (MTBE)
07/03/23 07:025.001.00<1.00µg/L4-Methyl-2-Pentanone
07/03/23 07:021.000.330<0.330µg/LMethylene Chloride
07/03/23 07:021.000.470<0.470µg/LNaphthalene
07/03/23 07:020.5000.190<0.190µg/Ln-Propylbenzene
07/03/23 07:020.5000.220<0.220µg/LStyrene
Page 3 of 13Date:07/10/2023 10:38 AM
Page 41 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V34973QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34969
Associated Lab Samples: 99494, 99495, 99496, 99497, 99500
LRB-V34969 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/03/23 07:020.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane
07/03/23 07:020.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane
07/03/23 07:020.5000.220<0.220µg/LTetrachloroethene
07/03/23 07:020.5000.220<0.220µg/LToluene
07/03/23 07:022.000.380<0.380µg/L1,2,3-Trichlorobenzene
07/03/23 07:021.000.310<0.310µg/L1,2,4-Trichlorobenzene
07/03/23 07:020.5000.160<0.160µg/L1,1,1-Trichloroethane
07/03/23 07:020.5000.096<0.096µg/L1,1,2-Trichloroethane
07/03/23 07:020.5000.180<0.180µg/LTrichloroethene
07/03/23 07:020.5000.180<0.180µg/LTrichlorofluoromethane
07/03/23 07:021.000.270<0.270µg/L1,2,3-Trichloropropane
07/03/23 07:020.5000.190<0.190µg/L1,2,4-Trimethylbenzene
07/03/23 07:020.5000.180<0.180µg/L1,3,5-Trimethylbenzene
07/03/23 07:022.001.00<1.00µg/LVinyl Acetate
07/03/23 07:020.5000.170<0.170µg/LVinyl Chloride
07/03/23 07:020.5000.210<0.210µg/Lo-Xylene
07/03/23 07:021.000.420<0.420µg/Lm,p-Xylene
07/03/23 07:024-Bromofluorobenzene (S)103 80-124
07/03/23 07:02Dibromofluoromethane (S)95.6 75-129
07/03/23 07:021,2-Dichloroethane - d4 (S)95.6 63-136
07/03/23 07:02Toluene-d8 (S)96.6 77-123
LCS-V34969 LCSD-V34969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
40.4 10184.233.740.0µg/LAcetone 40-166 18.0 20.0
Page 4 of 13Date:07/10/2023 10:38 AM
Page 42 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V34973QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34969
LCS-V34969 LCSD-V34969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
34.2 85.583.733.540.0µg/LAcrolein 70-130 2.0 20.0
43.7 10910240.740.0µg/LAcrylonitrile 81-127 7.1 20.0
20.5 10310420.720.0µg/LBenzene 77-128 0.9 20.0
19.0 95.099.519.920.0µg/LBromobenzene 78-129 4.6 20.0
20.6 10310921.720.0µg/LBromochloromethane 78-135 5.2 20.0
21.5 10810921.720.0µg/LBromodichloromethane 76-138 0.9 20.0
21.0 10510420.820.0µg/LBromoform 71-135 0.9 20.0
25.8 12911021.920.0µg/LBromomethane 41-168 16.3 20.0
19.6 98.010220.320.0µg/Ln-Butylbenzene 68-134 3.5 20.0
20.4 10210721.320.0µg/Lsec-Butyl benzene 71-131 4.3 20.0
20.0 10010520.920.0µg/Ltert-Butyl benzene 70-132 4.4 20.0
20.2 10110220.420.0µg/LCarbon Disulfide 59-135 0.9 20.0
20.3 10210120.120.0µg/LCarbon Tetrachloride 72-142 0.9 20.0
20.4 10210320.620.0µg/LChlorobenzene 78-119 0.9 20.0
20.4 10210320.520.0µg/LChlorodibromomethane 75-134 0.4 20.0
20.5 10397.519.520.0µg/LChloroethane 57-142 5.0 20.0
20.5 10310220.420.0µg/LChloroform 77-130 0.4 20.0
21.6 10810220.320.0µg/LChloromethane 47-145 6.2 20.0
19.7 98.510320.520.0µg/L2-Chlorotoluene 74-126 3.9 20.0
19.6 98.010220.420.0µg/L4-Chlorotoluene 78-129 4.0 20.0
20.6 10310521.020.0µg/LDi-Isopropyl Ether (DIPE)60-154 1.9 20.0
19.4 97.092.518.520.0µg/L1,2-Dibromo-3-Chloropropane 63-134 4.7 20.0
20.0 10010220.420.0µg/L1,2-Dibromoethane 77-135 1.9 20.0
21.6 10810921.820.0µg/LDibromomethane 76-138 0.9 20.0
19.6 98.010020.020.0µg/L1,2-Dichlorobenzene 78-128 2.0 20.0
19.5 97.510020.020.0µg/L1,3-Dichlorobenzene 77-125 2.5 20.0
Page 5 of 13Date:07/10/2023 10:38 AM
Page 43 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V34973QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34969
LCS-V34969 LCSD-V34969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
19.5 97.510120.220.0µg/L1,4-Dichlorobenzene 75-126 3.5 20.0
21.4 10710220.320.0µg/LDichlorodifluoromethane 28-163 5.2 20.0
19.9 99.510320.520.0µg/L1,1-Dichloroethane 70-130 2.9 20.0
20.3 10210320.620.0µg/L1,2-Dichloroethane 68-131 1.4 20.0
19.9 99.510120.120.0µg/L1,1-Dichloroethene 70-154 1.0 20.0
20.8 10410721.420.0µg/Lcis-1,2-Dichloroethene 76-141 2.8 20.0
20.2 10110120.120.0µg/Ltrans-1,2-Dichloroethene 76-135 0.4 20.0
20.8 10410621.220.0µg/L1,2-Dichloropropane 77-130 1.9 20.0
20.4 10210320.520.0µg/L1,3-Dichloropropane 76-132 0.4 20.0
16.1 80.582.516.520.0µg/L2,2-Dichloropropane 29-149 2.4 20.0
19.4 97.098.519.720.0µg/L1,1-Dichloropropene 71-136 1.5 20.0
20.2 10110220.320.0µg/Lcis-1,3-Dichloropropene 65-140 0.4 20.0
21.1 10610721.320.0µg/Ltrans-1,3-Dichloropropene 67-140 0.9 20.0
20.3 10210320.620.0µg/LEthylbenzene 80-127 1.4 20.0
41.9 10510642.340.0µg/LEthyl Tertiary Butyl Ether (ETBE)70-130 0.9 20.0
18.9 94.598.019.620.0µg/LHexachlorobutadiene 61-134 3.6 20.0
17.6 88.087.517.520.0µg/Ln-Hexane 70-130 0.5 20.0
19.4 97.090.518.120.0µg/L2-Hexanone 64-137 6.9 20.0
19.8 99.010420.720.0µg/LIsopropylbenzene 70-130 4.4 20.0
19.8 99.010420.820.0µg/L4-Isopropyl toluene 69-132 4.9 20.0
19.2 96.083.016.620.0µg/LMethyl Ethyl Ketone (MEK)71-134 14.5 20.0
20.3 10210120.120.0µg/LMethyl tert-butyl ether (MTBE)68-135 0.9 20.0
22.1 11111021.920.0µg/L4-Methyl-2-Pentanone 69-134 0.9 20.0
20.9 10510621.120.0µg/LMethylene Chloride 73-131 0.9 20.0
20.2 10198.519.720.0µg/LNaphthalene 64-136 2.5 20.0
20.6 10310721.320.0µg/Ln-Propylbenzene 72-132 3.3 20.0
Page 6 of 13Date:07/10/2023 10:38 AM
Page 44 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V34973QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34969
LCS-V34969 LCSD-V34969Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
21.0 10510220.420.0µg/LStyrene 78-129 2.8 20.0
19.6 98.010120.220.0µg/L1,1,1,2-Tetrachloroethane 79-134 3.0 20.0
18.0 90.098.019.620.0µg/L1,1,2,2-Tetrachloroethane 62-127 8.5 20.0
19.8 99.010120.120.0µg/LTetrachloroethene 80-129 1.5 20.0
21.4 10711021.920.0µg/LToluene 76-131 2.3 20.0
22.3 11210821.620.0µg/L1,2,3-Trichlorobenzene 58-144 3.1 20.0
19.1 95.597.519.520.0µg/L1,2,4-Trichlorobenzene 66-139 2.0 20.0
20.5 10310420.820.0µg/L1,1,1-Trichloroethane 75-135 1.4 20.0
21.6 10810921.820.0µg/L1,1,2-Trichloroethane 70-140 0.9 20.0
22.1 11110521.020.0µg/LTrichloroethene 77-133 5.1 20.0
21.4 10710320.620.0µg/LTrichlorofluoromethane 62-148 3.8 20.0
21.4 10710520.920.0µg/L1,2,3-Trichloropropane 71-127 2.3 20.0
20.0 10010420.720.0µg/L1,2,4-Trimethylbenzene 75-133 3.4 20.0
20.0 10010520.920.0µg/L1,3,5-Trimethylbenzene 75-131 4.4 20.0
12.6 63.092.018.420.0µg/LVinyl Acetate 34-167 37.4*20.0
20.4 10297.519.520.0µg/LVinyl Chloride 57-141 4.5 20.0
20.9 10510621.120.0µg/Lo-Xylene 78-128 0.9 20.0
43.3 10811144.540.0µg/Lm,p-Xylene 77-133 2.7 20.0
99.21014-Bromofluorobenzene (S)80-124
96.295.2Dibromofluoromethane (S)75-129
1031021,2-Dichloroethane - d4 (S)63-136
94.895.0Toluene-d8 (S)77-123
Page 7 of 13* QC Fail Date:07/10/2023 10:38 AM
Page 45 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V35002QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34999
Associated Lab Samples: 99493, 99498, 99499
LRB-V34999 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/05/23 13:465.001.80<1.80µg/LAcetone
07/05/23 13:465.002.00<2.00µg/LAcrolein
07/05/23 13:465.000.230<0.230µg/LAcrylonitrile
07/05/23 13:460.5000.180<0.180µg/LBenzene
07/05/23 13:460.5000.210<0.210µg/LBromobenzene
07/05/23 13:461.000.420<0.420µg/LBromochloromethane
07/05/23 13:460.5000.160<0.160µg/LBromodichloromethane
07/05/23 13:465.001.50<1.50µg/LBromoform
07/05/23 13:461.000.280<0.280µg/LBromomethane
07/05/23 13:461.000.185<0.185µg/Ln-Butylbenzene
07/05/23 13:460.5000.200<0.200µg/Lsec-Butyl benzene
07/05/23 13:462.000.920<0.920µg/Ltert-Butyl benzene
07/05/23 13:465.000.150<0.150µg/LCarbon Disulfide
07/05/23 13:460.5000.180<0.180µg/LCarbon Tetrachloride
07/05/23 13:460.5000.190<0.190µg/LChlorobenzene
07/05/23 13:460.5000.190<0.190µg/LChlorodibromomethane
07/05/23 13:461.000.430<0.430µg/LChloroethane
07/05/23 13:460.5000.220<0.220µg/LChloroform
07/05/23 13:460.5000.220<0.220µg/LChloromethane
07/05/23 13:460.5000.200<0.200µg/L2-Chlorotoluene
07/05/23 13:460.5000.200<0.200µg/L4-Chlorotoluene
07/05/23 13:465.000.960<0.960µg/LDi-Isopropyl Ether (DIPE)
07/05/23 13:462.001.10<1.10µg/L1,2-Dibromo-3-Chloropropane
07/05/23 13:460.5000.200<0.200µg/L1,2-Dibromoethane
07/05/23 13:460.5000.230<0.230µg/LDibromomethane
07/05/23 13:460.5000.220<0.220µg/L1,2-Dichlorobenzene
07/05/23 13:460.5000.190<0.190µg/L1,3-Dichlorobenzene
Page 8 of 13Date:07/10/2023 10:38 AM
Page 46 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V35002QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34999
Associated Lab Samples: 99493, 99498, 99499
LRB-V34999 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/05/23 13:460.5000.210<0.210µg/L1,4-Dichlorobenzene
07/05/23 13:465.001.20<1.20µg/LDichlorodifluoromethane
07/05/23 13:460.5000.240<0.240µg/L1,1-Dichloroethane
07/05/23 13:460.5000.150<0.150µg/L1,2-Dichloroethane
07/05/23 13:460.5000.150<0.150µg/L1,1-Dichloroethene
07/05/23 13:460.5000.200<0.200µg/Lcis-1,2-Dichloroethene
07/05/23 13:460.5000.180<0.180µg/Ltrans-1,2-Dichloroethene
07/05/23 13:460.5000.190<0.190µg/L1,2-Dichloropropane
07/05/23 13:460.5000.130<0.130µg/L1,3-Dichloropropane
07/05/23 13:462.000.210<0.210µg/L2,2-Dichloropropane
07/05/23 13:460.5000.200<0.200µg/L1,1-Dichloropropene
07/05/23 13:460.5000.210<0.210µg/Lcis-1,3-Dichloropropene
07/05/23 13:460.5000.150<0.150µg/Ltrans-1,3-Dichloropropene
07/05/23 13:460.5000.170<0.170µg/LEthylbenzene
07/05/23 13:4610.01.80<1.80µg/LEthyl Tertiary Butyl Ether (ETBE)
07/05/23 13:462.000.350<0.350µg/LHexachlorobutadiene
07/05/23 13:4610.01.30<1.30µg/Ln-Hexane
07/05/23 13:465.000.380<0.380µg/L2-Hexanone
07/05/23 13:465.000.180<0.180µg/LIsopropylbenzene
07/05/23 13:460.5000.089<0.089µg/L4-Isopropyl toluene
07/05/23 13:465.000.710<0.710µg/LMethyl Ethyl Ketone (MEK)
07/05/23 13:460.5000.140<0.140µg/LMethyl tert-butyl ether (MTBE)
07/05/23 13:465.001.00<1.00µg/L4-Methyl-2-Pentanone
07/05/23 13:461.000.330<0.330µg/LMethylene Chloride
07/05/23 13:461.000.470<0.470µg/LNaphthalene
07/05/23 13:460.5000.190<0.190µg/Ln-Propylbenzene
07/05/23 13:460.5000.220<0.220µg/LStyrene
Page 9 of 13Date:07/10/2023 10:38 AM
Page 47 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V35002QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34999
Associated Lab Samples: 99493, 99498, 99499
LRB-V34999 Matrix: AQULab Reagent Blank
Parameter
AnalyzedMQLMDLBlank
ResultUnits
%
Recovery
% Rec
Limits
07/05/23 13:460.5000.160<0.160µg/L1,1,1,2-Tetrachloroethane
07/05/23 13:460.5000.160<0.160µg/L1,1,2,2-Tetrachloroethane
07/05/23 13:460.5000.220<0.220µg/LTetrachloroethene
07/05/23 13:460.5000.220<0.220µg/LToluene
07/05/23 13:462.000.380<0.380µg/L1,2,3-Trichlorobenzene
07/05/23 13:461.000.310<0.310µg/L1,2,4-Trichlorobenzene
07/05/23 13:460.5000.160<0.160µg/L1,1,1-Trichloroethane
07/05/23 13:460.5000.096<0.096µg/L1,1,2-Trichloroethane
07/05/23 13:460.5000.180<0.180µg/LTrichloroethene
07/05/23 13:460.5000.180<0.180µg/LTrichlorofluoromethane
07/05/23 13:461.000.270<0.270µg/L1,2,3-Trichloropropane
07/05/23 13:460.5000.190<0.190µg/L1,2,4-Trimethylbenzene
07/05/23 13:460.5000.180<0.180µg/L1,3,5-Trimethylbenzene
07/05/23 13:462.001.00<1.00µg/LVinyl Acetate
07/05/23 13:460.5000.170<0.170µg/LVinyl Chloride
07/05/23 13:460.5000.210<0.210µg/Lo-Xylene
07/05/23 13:461.000.420<0.420µg/Lm,p-Xylene
07/05/23 13:464-Bromofluorobenzene (S)100 80-124
07/05/23 13:46Dibromofluoromethane (S)95.8 75-129
07/05/23 13:461,2-Dichloroethane - d4 (S)96.4 63-136
07/05/23 13:46Toluene-d8 (S)96.2 77-123
LCS-V34999 LCSD-V34999Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
42.2 10610843.040.0µg/LAcetone 40-166 1.8 20.0
Page 10 of 13Date:07/10/2023 10:38 AM
Page 48 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V35002QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34999
LCS-V34999 LCSD-V34999Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
46.4 11611847.140.0µg/LAcrolein 70-130 1.4 20.0
42.0 10510542.140.0µg/LAcrylonitrile 81-127 0.2 20.0
21.4 10710821.620.0µg/LBenzene 77-128 0.9 20.0
20.6 10310821.520.0µg/LBromobenzene 78-129 4.2 20.0
22.0 11010821.620.0µg/LBromochloromethane 78-135 1.8 20.0
21.6 10810721.320.0µg/LBromodichloromethane 76-138 1.3 20.0
21.6 10810721.320.0µg/LBromoform 71-135 1.3 20.0
27.2 13614128.120.0µg/LBromomethane 41-168 3.2 20.0
21.8 10911422.720.0µg/Ln-Butylbenzene 68-134 4.0 20.0
21.7 10911222.420.0µg/Lsec-Butyl benzene 71-131 3.1 20.0
21.2 10611122.220.0µg/Ltert-Butyl benzene 70-132 4.6 20.0
22.3 11211022.020.0µg/LCarbon Disulfide 59-135 1.3 20.0
20.9 10510521.020.0µg/LCarbon Tetrachloride 72-142 0.4 20.0
21.3 10710621.220.0µg/LChlorobenzene 78-119 0.4 20.0
21.4 10710721.320.0µg/LChlorodibromomethane 75-134 0.4 20.0
21.2 10610821.520.0µg/LChloroethane 57-142 1.4 20.0
21.1 10610520.920.0µg/LChloroform 77-130 0.9 20.0
20.7 10410420.720.0µg/LChloromethane 47-145 0.0 20.0
21.3 10711022.020.0µg/L2-Chlorotoluene 74-126 3.2 20.0
21.2 10611021.920.0µg/L4-Chlorotoluene 78-129 3.2 20.0
21.0 10510420.720.0µg/LDi-Isopropyl Ether (DIPE)60-154 1.4 20.0
19.7 98.510020.020.0µg/L1,2-Dibromo-3-Chloropropane 63-134 1.5 20.0
20.8 10410220.420.0µg/L1,2-Dibromoethane 77-135 1.9 20.0
21.8 10910721.420.0µg/LDibromomethane 76-138 1.8 20.0
21.0 10510621.220.0µg/L1,2-Dichlorobenzene 78-128 0.9 20.0
21.0 10510721.420.0µg/L1,3-Dichlorobenzene 77-125 1.8 20.0
Page 11 of 13Date:07/10/2023 10:38 AM
Page 49 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V35002QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34999
LCS-V34999 LCSD-V34999Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
20.6 10310621.220.0µg/L1,4-Dichlorobenzene 75-126 2.8 20.0
20.4 10210420.820.0µg/LDichlorodifluoromethane 28-163 1.9 20.0
20.9 10510520.920.0µg/L1,1-Dichloroethane 70-130 0.0 20.0
21.1 10610220.420.0µg/L1,2-Dichloroethane 68-131 3.3 20.0
21.2 10610420.720.0µg/L1,1-Dichloroethene 70-154 2.3 20.0
21.3 10710821.520.0µg/Lcis-1,2-Dichloroethene 76-141 0.9 20.0
21.0 10510521.020.0µg/Ltrans-1,2-Dichloroethene 76-135 0.0 20.0
21.8 10910721.420.0µg/L1,2-Dichloropropane 77-130 1.8 20.0
20.7 10410320.520.0µg/L1,3-Dichloropropane 76-132 0.9 20.0
21.6 10811022.020.0µg/L2,2-Dichloropropane 29-149 1.8 20.0
21.5 10810821.520.0µg/L1,1-Dichloropropene 71-136 0.0 20.0
21.9 11010921.820.0µg/Lcis-1,3-Dichloropropene 65-140 0.4 20.0
22.0 11010921.820.0µg/Ltrans-1,3-Dichloropropene 67-140 0.9 20.0
21.2 10610821.520.0µg/LEthylbenzene 80-127 1.4 20.0
43.6 10910843.040.0µg/LEthyl Tertiary Butyl Ether (ETBE)70-130 1.3 20.0
21.9 11011422.720.0µg/LHexachlorobutadiene 61-134 3.5 20.0
22.1 11111523.020.0µg/Ln-Hexane 70-130 3.9 20.0
20.5 10398.519.720.0µg/L2-Hexanone 64-137 3.9 20.0
21.5 10811222.420.0µg/LIsopropylbenzene 70-130 4.1 20.0
21.7 10911322.520.0µg/L4-Isopropyl toluene 69-132 3.6 20.0
18.6 93.091.018.220.0µg/LMethyl Ethyl Ketone (MEK)71-134 2.1 20.0
20.8 10410120.120.0µg/LMethyl tert-butyl ether (MTBE)68-135 3.4 20.0
20.8 10410420.820.0µg/L4-Methyl-2-Pentanone 69-134 0.0 20.0
21.1 10610621.120.0µg/LMethylene Chloride 73-131 0.0 20.0
20.1 10110220.420.0µg/LNaphthalene 64-136 1.4 20.0
22.0 11011522.920.0µg/Ln-Propylbenzene 72-132 4.0 20.0
Page 12 of 13Date:07/10/2023 10:38 AM
Page 50 of 53
Quality Control Data
23-180-0008Report No:
Project Description:
Client ID:Kleinfelder SE, Inc. (Morrisville)
VP Greensboro - Chemol GW Monitoring
QC Prep Batch Method:
Volatile Organic Compounds - GC/MS
8260D
V35002QC Analytical Batch(es):
Analysis Method:
Analysis Description:
5030B
QC Prep:V34999
LCS-V34999 LCSD-V34999Laboratory Control Sample & LCSD
LCSD
ResultParameter Max
RPD
LCSD
% Rec
LCS
%Rec
LCS
Result
Spike
Conc.Units
% Rec
Limits RPD
21.6 10810621.120.0µg/LStyrene 78-129 2.3 20.0
21.1 10610621.220.0µg/L1,1,1,2-Tetrachloroethane 79-134 0.4 20.0
20.6 10310420.820.0µg/L1,1,2,2-Tetrachloroethane 62-127 0.9 20.0
21.4 10710721.320.0µg/LTetrachloroethene 80-129 0.4 20.0
21.9 11010921.820.0µg/LToluene 76-131 0.4 20.0
21.4 10711122.120.0µg/L1,2,3-Trichlorobenzene 58-144 3.2 20.0
20.9 10510821.620.0µg/L1,2,4-Trichlorobenzene 66-139 3.2 20.0
21.3 10710621.220.0µg/L1,1,1-Trichloroethane 75-135 0.4 20.0
22.0 11010721.320.0µg/L1,1,2-Trichloroethane 70-140 3.2 20.0
21.4 10710621.220.0µg/LTrichloroethene 77-133 0.9 20.0
21.5 10811222.420.0µg/LTrichlorofluoromethane 62-148 4.1 20.0
21.7 10910721.420.0µg/L1,2,3-Trichloropropane 71-127 1.3 20.0
21.6 10811122.220.0µg/L1,2,4-Trimethylbenzene 75-133 2.7 20.0
21.6 10811222.320.0µg/L1,3,5-Trimethylbenzene 75-131 3.1 20.0
23.5 11812124.120.0µg/LVinyl Acetate 34-167 2.5 20.0
21.1 10610721.320.0µg/LVinyl Chloride 57-141 0.9 20.0
21.7 10910821.620.0µg/Lo-Xylene 78-128 0.4 20.0
45.7 11411545.940.0µg/Lm,p-Xylene 77-133 0.4 20.0
1001024-Bromofluorobenzene (S)80-124
95.895.0Dibromofluoromethane (S)75-129
10098.61,2-Dichloroethane - d4 (S)63-136
97.096.8Toluene-d8 (S)77-123
Page 13 of 13Date:07/10/2023 10:38 AM
Page 51 of 53
Fed Ex
UPS
US Postal
Client
Lab
Courier
Other :
Shipment Receipt Form
Customer Number:
Customer Name:
Report Number:23-180-0008
Kleinfelder SE, Inc. (Morrisville)
01123
Shipping Method
Shipping container/cooler uncompromised?
Thermometer ID:IRT15 3.5C
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:Angelo Norvell Date & Time:06/29/2023 12:13:51
Special precautions or instructions included?
Comments:
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