2019-9-13 Venable VI Assessment

CRAWL SPACE AND SOIL GAS ASSESSMENT REPORT
VENABLE TOBACCO COMPANY
302 & 308 EAST PETTIGREW STREET
DURHAM, DURHAM COUNTY, NORTH CAROLINA 27701
Prepared For:
Trinity Partners, Inc.
Attn: Ms. Sherrie Chaffin
440 South Church Street, Suite 800
Charlotte, North Carolina 28202
Prepared By:
Mid -Atlantic Associates, Inc.
409 Rogers View Court
Raleigh, North Carolina 27610
Mid -Atlantic Job No. OOOR3155.00
September 13, 2019
Mid Atlantic

M i �i tl anti C
&
409 Roger & Vit w Cou i t
Baal,, NC 276 10
office 919.150 "Is
fAC-11mile 949,750 9,950
MAAONL INECOM
CRAWL SPACE AND SOIL GAS ASSESSMENT REPORT
VENABLE TOBACCO COMPANY
302 & 308 EAST PETTIGREW STREET
DURHAM, DURHAM COUNTY, NORTH CAROLINA 27701
September 13, 2019
Mid -Atlantic Job No. 00OR3155.00
Prepared For:
Trinity Partners, Inc.
Attn: Ms. Sherrie Chaffin
440 South Church Street, Suite 800
Charlotte, North Carolina 28202
Prepared By:
MID -ATLANTIC
ASSOCIATES, INC.
Kevin Clay
Staff Scientist,,
S
Daniel H.
Principal Eft"
�� Mid Atlantic

TABLE OF CONTENTS
1.0 GENERAL INFORMATION....................................................................................1
2.0 SUMMARY OF FIELD ACTIVITIES.......................................................................1
2.1 Crawlspace and Outdoor Air Sample Collection .......................................... 1
2.2 Exterior Soil Gas Sample Collection............................................................. 2
3.0 LABORATORY ANALYTICAL RESULTS............................................................. 3
3.1
Risk Evaluation Methodology....................................................................... 3
3.2
Exposure Unit 1 Sampling Results............................................................... 4
3.3
Exposure Unit 2 Sampling Results............................................................... 4
3.4
Exposure Unit 3 Sampling Results............................................................... 5
3.5
Exposure Unit 4 Sampling Results............................................................... 5
4.0 SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS ................................. 5
DRAWINGS
Drawing 1.1 Topographic Site Map
Drawing 1.2 Sample Location Map
Ir_1 114: &1
Table 3.1 Summary of Chemical Constituents Detected in Soil Gas and Risk
Calculations
Table 3.2 Summary of Chemical Constituents Detected in Indoor Air (Crawl
Space) and Risk Calculations
APPENDICES
Appendix A Indoor Air Building Survey and Sampling Form
Appendix B Laboratory Analytical Report and Chain of Custody Record
Appendix C DEQ Risk Summary Sheets
Mid Atlantic

1.0 GENERAL INFORMATION
The subject site consists of two parcels totaling approximately 3.76 acres located along
South Roxboro Street and East Pettigrew Street in Durham, Durham County, North
Carolina (Drawing 1.1). Current uses on and in the vicinity of subject site are for offices
and parking. However, historical uses of the subject site and the surrounding area were
primarily industrial. Parcel information obtained from the Durham County Tax
Administration Office is summarized below:
Map ID
Address
Acres
Zoning
PIN
P-1
302 E Pettigrew Street
2.03
DD-C
0821-12-95-7878
P-2
308 E Pettigrew Street
1.73
DD-C
0821-09-95-9860
Assessment activities have been conducted on each parcel of the subject site and have
not identified significant contamination on and in the immediate vicinity of the subject site.
During a project kick off meeting with the Brownfield Program conducted on October 30,
2018, parties agreed that the previous assessment data adequately characterized the
potential source areas. However, at the request of the Brownfield Program, it was decided
that the collection of sub slab soil gas under existing buildings and soil gas data under the
proposed building would be prudent (May 31, 2019 Work Plan, Version 2). Review of the
building construction revealed that the majority of the existing buildings are not slab on
grade. They are constructed with very small inaccessible crawl spaces. Therefore, the
Work Plan Version 2 was revised to include additional soil gas samples in the vicinity of
the Dibrell Building. In addition, one crawl space sample under The Prizery Building,
accessible through a small door in the northeast wall of The Receiving Room was added
to the scope (July 1, 2019 Work Plan, Version 3).
2.0 SUMMARY OF FIELD ACTIVITIES
On July 17, 2019 Mid -Atlantic collected 8-hour air samples from the crawlspace below
The Prizery and an outdoor air sample. Mid -Atlantic also oversaw the installation of and
sampled five exterior soil gas points (SG-1 through SG-5) in the parking lot and in the
vicinity of the Dibrell Building.
2.1 Crawlspace and Outdoor Air Sample Collection
Air samples were collected at one crawlspace (CS-1) and one outdoor (OA-1) location
(Drawing 2.1), as identified in the July 1, 2019 Work Plan. The building HVAC system
was in operation prior to and during sampling. Mid -Atlantic conducted a site
reconnaissance prior to sampling to identify potential sources of indoor air
contaminants. The results of the survey are included in the Indoor Air Building Survey
and Sampling Form (Appendix A). A closed paint container was identified and moved
out of the crawlspace prior to collecting CS-1.
Mid Atlantic

Crawl Space and Soil Gas Assessment Report September 13, 2019
Venable Tobacco Company Page 2
Durham, North Carolina
All samples were collected in general accordance with the Division of Waste
Management (DWM) Vapor Intrusion Guidance dated March 2018. Both samples were
collected on July 17, 2019 using 6-liter stainless steel Summa canisters at a maximum
flow rate of 8-10 ml/min. Outdoor temperatures were in the low 90s (F) at the start of
the sampling and peaked in the high 90s (F). The skies were partly cloudy and there
was a light breeze. The outdoor air sample was placed on a stand so the sample was
collected approximately four feet above the ground. After collection, the crawlspace and
outdoor air samples were shipped to Con -Test Analytical Laboratory, Inc. (Con -Test) in
East Longmeadow, Massachusetts under proper chain of custody for analysis. The
canisters were analyzed for Volatile Organic Compounds (VOCs) using standard
laboratory turnaround times in accordance with EPA Method TO-15.
2.2 Exterior Soil Gas Sample Collection
A total of five exterior soil gas sampling points were installed during the July 2019
sampling event. Five soil gas samples (SG-1 through SG-5) were collected from the soil
gas points and one duplicate (SG-D) was collected from SG-4. Boring services and
construction of the exterior soil gas sample points were provided by Quantex, Inc. of
Clayton, North Carolina. The exterior soil gas borings were advanced using a Geoprobe
78220 DT and direct -push technology (DPT) to a depth of approximately five feet below
land surface (BLS). The borings were filled with sand to approximately 4.5 feet BLS and a
gas vapor implant (approximately 6" long with stainless steel screen) was then installed in
the boring and fitted with approximately six feet of '/4-inch outer diameter rigid -wall Teflon
tubing. The boring was filled with sand to approximately four feet BLS and bentonite
(lightly hydrated in small increments starting at 3.5 feet BLS) to land surface. Adjustments
to the location of SG-4 outlined in the Work Plan was made in the field due to the
presence of utility construction/maintenance along Roxboro Street. The location of SG-
4 was moved approximately 80 feet north of the location shown in the Work Plan due to
the construction activity. The revised location is where a historical gas station was once
located. The canisters were analyzed for Volatile Organic Compounds (VOCs) using
standard laboratory turnaround times in accordance with EPA Method TO-15.
Information regarding the location of the soil gas points is described in the table below:
SG-1 through SG-3
Parking lot outside the Dibrell Building and
The Prizery in parcel 2.
SG-4
Northwest of the Dibrell Building in a
landscaped area in parcel 1
SG-5
South of the Dibrell Building in the parking lot
in parcel 2.
CS-1
In the crawlspace between The Prizery and
The Receiving Room.
OA-1
Outside of The Receiving Room,
approximately 20 feet to the southwest.
Mid Atlantic

Crawl Space and Soil Gas Assessment Report September 13, 2019
Venable Tobacco Company Page 3
Durham, North Carolina
The samples were collected in accordance with the North Carolina Department of
Environmental Quality Division of Waste Management (NCDEQ DWM) Vapor Intrusion
Guidance document (March 2018).
Upon completion of sample point construction activities, the points were purged and a
leak checked was performed at each location using a plastic shroud, helium gas and a
portable helium gas detector. A plastic shroud was placed over the soil gas vapor probe
location with the tubing of the probe exiting the shroud through a small hole. A 3-way
valve was placed on the probe termination and connected to the sampling apparatus.
Helium was released into the shroud via tubing from the cylinder into the shroud, and
grab samples were collected by filling a Tedlar bag using the exhaust port of the purge
syringe. No leaks were detected during the helium monitoring checks at the exterior soil
gas sample locations.
The samples were collected using 3-liter stainless steel canisters at a maximum flow
rate of 100 ml/min. After collection, the exterior soil gas samples were shipped to Con -
Test in East Longmeadow, Massachusetts under proper chain of custody for analysis.
The canisters were analyzed for VOCs using standard laboratory turnaround times in
accordance with EPA Method TO-15. A duplicate sample (SG-D) was collected from
the location of SG-4.
3.0 LABORATORY ANALYTICAL RESULTS AND RISK EVALUATION
The laboratory analytical report and chains -of -custody record for the soil gas and
crawlspace samples collected in July 2019 are provided in Appendix B and summarized
in Table 3.1 and 3.2. The soil gas analytical results were initially compared to the DWM
Non -Residential Vapor Intrusion Exterior Soil Gas Screening Levels (SGSLs) and the
crawl space sample to the Indoor Air Screening Levels (IASLs) February 2018 Table.
3.1 Risk Evaluation Methodology
The cumulative risk is calculated by entering the maximum concentrations of all
contaminants detected at each established exposure unit (EU) into the DEQ Risk
Calculator. An EU is a defined area of a site represented by a specific set of land use(s),
receptors, contaminant concentrations, and exposure pathways.' The subject site is
separated in to four EUs. Information regarding the specific EUs is described in the table
below:
NCDEQ Technical Guidance for Risk -Based Environmental Remediation of Sites. March 2017. Page 40
Mid Atlantic

Crawl Space and Soil Gas Assessment Report
Venable Tobacco Company
Durham, North Carolina
September 13, 2019
Page 4
Exposure Unit
1
m I
SG-1 through SG-3
escri ti
Under the proposed office building
2
SG-4
North side of the Dibrell Building
3
SG-5
Southeast side of the Dibrell Building
4
CS-1
The Prizery Crawlspace
The DEQ Risk Calculator determines the cancer risk sum for all carcinogens and the
cumulative hazard index for all non -carcinogens. The DWM allows a maximum cancer
risk sum for all carcinogens of 1.0E-04 and a maximum cumulative hazard index (HI) of
1.0 for all non -carcinogens in soil gas and indoor air. The HI is the sum of the hazard
quotient (HQs) calculated for each compound detected above the reporting limit.2 The
NCDEQ risk calculations for the subject site are included in Appendix C. For this
investigation, only Non -Residential standards apply based on the present and planned
use for the site.
The results of the risk evaluations are summarized in Table 3.1 and Table 3.2 and is
discussed below.
3.2 Exposure Unit 1 Sampling Results
As summarized in Table 3.1 compounds were detected above the laboratory MDL but
below the Non -Residential (and Residential) Vapor Intrusion SGSLs in the exterior soil
gas samples collected at EU-1. The maximum concentrations of detected compounds
among SG-1 through SG-3 were selected for risk calculator computation.
As shown in Table 3.1, the non-residential cancer risk sum calculated using maximum
detected concentrations in the exposure unit was 8.1 E-07 — below the target cancer risk
of 1.0E-04. The non-residential non -cancer risk sum was calculated as 4.0E-02 which is
below than the target cumulative non -cancer hazard index of 1.0.
3.3 Exposure Unit 2 Sampling Results
As summarized in Table 3.1, heptane and hexane were detected in the exterior soil gas
sample SG-4 at concentrations exceeding Non -Residential SGSLs at 130,000 ug/m3 for
heptane and 120,000 ug/m3 for hexane. Due to a dilution factor of 12000 the laboratory
MDL for seventeen compounds exceeded the Non -Residential Vapor Intrusion SGSL.
Duplicate SG-D exhibited a lower concentration of Heptane at 59,000 ug/m3 and a
similar concentration of Hexane at 110,000 ug/m3, and both still exceeded the Non -
Residential SGSLs.
2 Division of Waste Management (DWM) Vapor Intrusion Screening Levels Guidance Document. April
2014. Page 1.
Mid Atlantic

Crawl Space and Soil Gas Assessment Report
Venable Tobacco Company
Durham, North Carolina
September 13, 2019
Page 5
These detections were not anticipated, therefore a second analysis was conducted on
SG-4. The results of this analysis exhibited similar exceedances of the Non -Residential
SGSL with concentrations of 150,000 ug/m3 for heptane and 180,000 ug/m3 for hexane.
The outcome of this second analysis is included with the laboratory results in Appendix
B.
As summarized in Table 3.1, the non-residential cancer risk sum was 0.0E+00, below the
target Non -Residential cancer risk sum of 1.0E-043. The non-residential cumulative non -
cancer hazard index was 1.1E+00 which exceeds the target cumulative non -cancer
hazard index of 1.0. This exceedance is due to the presence of heptane and hexane in
sample SG-4.
3.4 Exposure Unit 3 Sampling Results
As summarized in Table 3.1 compounds were detected above the laboratory MDL but
below Non -Residential (and Residential) Vapor Intrusion SGSLs.
As summarized in Table 3.1, the non-residential cancer risk sum was 1.4E-06, which is
below the target cancer risk sum of 1.0E-04. The non-residential cumulative non -cancer
hazard index was 1.4E-02 which is below than the target cumulative non -cancer hazard
index of 1.0.
3.5 Exposure Unit 4 Sampling Results
As shown in Table 3.2, CS-1, collected from the crawlspace beneath The Prizery,
exhibited a detection of isopropanol exceeding Non -Residential IASL at 420 ug/m3. Other
compounds were identified in the sample, but at concentrations below the Non -
Residential IASL. The cancer risk sum from CS-1 was 1.3E-05, under the target sum of
1.0E-04; the non -cancer risk hazard index was 7.4E-01, under the target index of 1.0.
The outdoor air sample OA-1 exhibited a detection of isopropanol exceeding the
Residential IASL at 55 ug/m3. Other VOCs identified in CS-1 were detected above the
MDL and below the Residential IASLs.
4.0 SUMMARY, CONCLUSIONS, AND RECOMMENDATIONS
The July 2019 Crawl Space and Soil Gas Assessment activities are summarized as
follows:
3 Heptane and hexane do not contribute to calculated carcinogenic risk in the May 2019 DEQ Risk
Calculator. With no contributions to carcinogenic risk, the default of 0.0E+00 was calculated.
Mid Atlantic

Crawl Space and Soil Gas Assessment Report
Venable Tobacco Company
Durham, North Carolina
September 13, 2019
Page 6
• A crawlspace sample was collected from beneath The Prizery and an outdoor air
sample was collected upwind of the building;
• A total of five exterior soil gas samples and a duplicate were collected from the
parking lot along East Pettigrew Street and near the Dibrell Building;
• At EU-1, EU-3 and EU-4, the non-residential cancer risk sum of 1.0E-04 was not
exceeded and the target cumulative non -cancer hazard index of 1.0 was not
exceeded; and
• Heptane and hexane were detected in the exterior soil gas sample SG-4, collected
at EU-2, at concentrations exceeding the Non -Residential Vapor Intrusion SGSL.
The cumulative non -cancer risk index exceeded 1.0 for EU-2.
The overall objective of this investigation was to evaluate the conditions (with respect to
vapor intrusion) at the site to help facilitate future development at the Venable Center.
The data collected during this investigation was used to determine if potential
unacceptable health risks are present at the subject site. Based on the data collected
our conclusions are:
• It appears that site conditions are not creating unacceptable exposure risk for a
non-residential exposure scenario for the planned office building in parcel 2 or The
Prizery. As such, a vapor intrusion mitigation system (VIMS) is not needed for the
proposed structure or The Prizery.
• Vapor intrusion may create unacceptable exposure risk for a non-residential
exposure scenario based on data from point SG-4, located north of the Dibrell
Building. This soil gas sample was collected near a former filling station and LUST
incident. Further assessment of the potential for a vapor intrusion condition at the
Dibrell Building is warranted.
Mid Atlantic

DRAWINGS
Mid Atlantic

REFERENCES:
1. SOUTHWEST DURHAM, NC DIGITAL RASTER GRAPHIC, USGS.
SCANNED FROM 1:24,000-SCALE SOUTHWEST DURHAM, NC
SCALE:
: 2,000
TOPOGRAPHIC MAP, PUBLISHED 2013, USGS.
2. INSET MAP DIGITAL DATA FROM 2002 NATIONAL TRANSPORTATION ATLAS,
Feet
BUREAU OF TRANSPORTATION STATISTICS, WASHINGTON, D.C.
3. PROPERTY BOUNDARY DATA FROM DURHAM COUNTY GIS. 0
500 1,000 2,000
DRAWN
DATE:
TOPOGRAPHIC SITE MAP
BY:
KRC
AUGUST 2019
ft Mid Atlantic
VENABLE TOBACCO COMPANY
EAST PETTIGREW STREET
DRAFT
CHECK:
JOB NO:
000R3155.00
Engineering & Environmental Solutions
AND SOUTH ROXBORO STREET
ENG.
GIS NO:
DURHAM, NORTH CAROLINA
CHECK:
03G-R3155.00-1
APPROVAL:
DWG NO: 1.1

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LEGEND
SOIL GAS SAMPLE LOCATION
0 CRAWLSPACE SAMPLE LOCATION
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SAMPLE LOCATION MAP
DRAWN BY: KRC
DATE: AUGUST 2019
DRAFT CHECK
•-.
Mid
.
Atlantic
VENABLE TOBACCO COMPANY
EAST PETTIGREW STREET
JOB NO.: OOOR3155.00
Engineering & Environmental Solutions
AND SOUTH ROXBORO STREET
ENGINEER CHECK
BY:
GIS NO.: 03G-R3155.00 SG
APBY:
DRAWING NO.: 2.1
DURHAM, NORTH CAROLINA
REFERENCE: 2017 AERIAL IMAGERY FROM NC ONE MAP. PROPERTY BOUNDARYAND ROAD GIS FROM DURHAM COUNTY GIS. DUDA PAINE ARCHITECTS SCHEMATIC (10/22/2018). TERRAQUEST FIGURE 2 (6/24/2007). MID -ATLANTIC FIELD NOTES.

TABLES
Mid Atlantic

TABLE 3.1
SUMMARY OF CHEMICAL CONSTITUENTS IN SOIL GAS
AND RISK CALCULATIONS
VENABLE TOBACCO COMPANY
DURHAM, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3155.00
Parameter
SAMPLING LOCATION
Residential Vapor Intrusion
Screening Levels (February
2018)
Non -Residential Vapor Intrusion
Screening Levels (February 2018)
SG-1
SG-2
SG-3
SG-4
SG-5
SG-O
(Duplicate of SG-4)
Residential Soil -Gas ug/m3
Non -Residential Soil -Gas ug/m3
Sampling Date
7/17/2019 12:45 PM
7/17/2019 11:02 AM
7/17/2019 11:52 AM
7/17/2019 2:19 PM
7/17/2019 1:20 PM
7/17/2019 2:45 PM
Sample Depth
4.5-5 Feet
4.5-5 Feet
4.5-5 Feet
4.5-5 Feet
4.5-5 Feet
4.5-5 Feet
EPA TO-1S
220000
120
7
25
850
35
14
35000
4900
160
350
70000
41
630
42000
NE
1.6
1400
NE
85
700
580
36
1400
NE
NE
28
NE
NE
NE
190
NE
490
370
NE
2800
43
4900
210
1400
3600
4200
21000
21
21000
7000
16
280
14000
35000
14
35000
1.4
14
NE
35000
420
420
1400
56
700
700
27000M
1600
88
330
11000
440
180
440000
61000
2000
4400
880000
530
7900
530000
NE
20
18000
NE
1100
8800
7700
470
18000
NE
NE
350
NE
NE
NE
2500
NE
6100
4900
NE
35000
560
61000
2600
18000
47000
53000
260000
260
260000
88000
210
3500
180000
440000
180
440000
18
180
NE
440000
5300
5300
18000
2800
8800
8800
Acetone
140
150
NO(16)
ND(20000)
120
NO(990)
Benzene
46
27
79
NO (790)
ND (680)
NO (1500)
ND (2800)
NO (1600)
NO (840)
NO (2800)
46
NO (39)
Benzyl Chloride
ND (0.23)
NO (0.23)
ND (0.57)
ND (0.23)
NO (34)
Bromodichloromethane
ND (0.49)
NO (0.49)
ND (1.2)
ND (0.49)
NO (74)
Bromoform
NO (0.93)
NO (0,93)
ND (2.3)
ND (0.93)
ND (140)
Bromomethane
ND (0.53)
NO (0.53)
ND (1.3)
ND (0.53)
NO (80)
1,3-Butadiene
ND (0.28)
NO (0.28)
ND (0.70)
ND (0.28)
NO (42)
2-Butanone (MEK)
40
45
ND (2.3)
35
ND (140)
Carbon Disulfide
88
NO (0,43)
89
NO (1300)
83
NO(64)
Carbon Tetrachloride
ND (0.41)
NO (0,41)
ND (1.0)
NO (1200)
ND (0.41)
NO (62)
Chlorobenzene
ND (0.45)
NO (0,45)
ND (1.1)
NO (1400)
ND (0.45)
NO (68)
Chloroethane
ND (0.32)
NO (0.32)
ND (0.80)
NO (960)
NO (840)
NO (0.32)
NO (48)
Chloroform
ND (0.36)
NO (0.36)
ND (0.91)
S2
NO (54)
Chloromethane
ND (0.28)
NO (0.28)
ND (0.70)
NO (0.28)
NO (42)
Cyclohexane
ND (0.49)
NO (0,49)
ND (1.2)
NO (1500)
NO (0.49)
NO (73)
Dibromochloromethane
No(0.57)
NO(0,57)
No (1.4)
NO(1700)
NO (1800)
NO (1700)
NO(0.57)
NO(85)
1,2-Dibromoethane (EDB)
ND (0.60)
NO (0,60)
ND (1.5)
No(
ND (0.58)
NO (87)
1,2-Dichlorobenzene
ND (0.58)
NO (0,58)
ND (1.4)
1,3-Dichlorobenzene
22
17
42
NO(1900)
ND (2200)
NO (1300)
34
NO(93)
1,4-Dichlorobenzene
ND (0.73)
NO (0,73)
ND (1.8)
ND (0.73)
NO (110)
Dichlorodifluoromethane (Freon 12)
ND (0.43)
NO (0,43)
ND (1.1)
ND (0.43)
NO (64)
1,1-Dichloroethane
ND (0.25)
NO (0,25)
ND (0.62)
NO (740)
JW NO (930)
NO (970)
ND (0.25)
NO (37)
1,2-Dichloroethane
ND (0.31)
NO (0,31)
ND (0.77)
ND (0.31)
NO (46)
1,1-Dichloroethylene
ND (0.32)
NO (0,32)
ND (0.80)
ND (0.32)
NO (48)
cis-1,2-Dichloroethylene
No (0.32)
NO (0,32)
No(0.81)
NO (970)
NO (0.32)
NO(49)
trans-1,2-Dichloroethylene
NO (0.32)
NO (0,32)
No (0.80)
NO (970)
NO(980)
NO(950)
NO (0.32)
NO (48)
1,2-Dichloropropane
NO (0.33)
NO (0.33)
NO(0.82)
NO (0.33)
No(49)
cis-1,3-Dichloropropene
No (0.32)
NO (0,32)
NO(0.79)
NO (0.32)
NO (48)
trans-1,3-Dichloropropene
ND (0.33)
NO (0,33)
NO (0.83)
ND (990)
NO (0.33)
NO (50)
1,2-Dichloro-1,1,2,2-tetra0uoroethane (Freon 114)
ND (0.70)
NO (0,70)
NO (1.7)
NO (2100)
NO (0.70)
ND (100)
1,4-Dioxane
ND (4.6)
NO (4.6)
ND (12)
NO (20000)
ND (4.6)
NO (700)
Ethanol
26
29
23 J
18
No (1000)
Ethyl Acetate
ND (0.54)
NO (0,54)
ND (1.3)
NO (1600)
ND (0.54)
NO (81)
Ethylbenzene
20
120
60
NO (1500)
32
NO (75)
4-Ethyltoluene
13
7.7
48
NO (1800)
130000
NO (2900) A
120000
NO (1500)
24
61
NO(90)
Heptane
59
24
710
Hexachlorobutadiene
ND (0.98)
NO (0,98)
ND (2.5)
NO (0.98)
240
NO (150)
Hexane
420
NO (1.2)
1300
2-Hexanone (MBK)
ND (0.48)
NO (0,48)
ND (1.2)
NO (0.48)
NO (73)
Isopropanol
ND (0.60)
7.2 J
ND (1.5)
NO (1800)
5.3 J
NO (90)
Methyl tert-Butyl Ether (MTBE)
ND (0.36)
NO (0,36)
ND (0.90)
ND (1100)
NO (0.36)
NO (54)
Methylene Chloride
ND (0.84)
NO (0,94)
ND (2.1)
ND (2500)
ND (0.84)
ND (130)
4-Methyl-2-pentanone (MIRK)
19
57
ND (0.99)
NO (1200)
NO (2400)
NO (1000)
30
NO (59)
Naphthalene
2.3
2.4
ND (2.0)
2.5
NO (120)
Propene
1800
680
NO(0.85)
700
NO(51)
Styrene
5.3
3.8
9.8
NO (1600)
No (1800)
No(2300)
5.0
NO(79)
1,1,2,2-Tetrachloroethane
No(0.61)
NO(0.61)
No (1.5)
No(0.61)
No(91)
Tetrachloroethylene
1.4
0.87J
3.5
1.9
ND (110)
Tetrahydrofuran
ND (0.39)
NO (0.39)
ND (0.98)
ND (1200)
ND (0.39)
NO (59)
Toluene
130
52
320
NO (1200)
NO (3100)
NO (1200)
NO (1300)
NO (1300)
No(2000)
250
NO(58)
1,2,4-Trichlorobenzene
2.5
NO (1.0)
ND (2.6)
ND (1.0)
NO (150)
1,1,1-Trichloroethane
No (0.41)
NO(0,41)
No (1.0)
No (0.41)
NO(61)
1,1,2-Trichloroethane
ND (0.45)
NO (0,45)
ND (1.1)
ND (0.45)
ND (0.43)
NO (65)
Trichloroethylene
ND (0.43)
NO (0,43)
ND (1.1)
Trichlorofluoromethane
0.811
NO(0,65)
No(1.6)
1.2J
NO(98)
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND (0.93)
NO (0.93)
ND (2.3)
NO (2800)
ND (0.93)
ND (140)
1,2,4-Trimethylbenzene
12
6.2
57
No(1900)
25
NO(94)
1,3,5-Trimethylbenzene
5.2
2.5
20
NO (1800)
9.6
NO(92)
Vinyl Acetate
ND (0.34)
NO (0.34)
ND (0.84)
ND (1000)
ND (0.34)
NO (50)
Vinyl Chloride
ND (0.32)
NO (0,32)
ND (0.81)
NO (970)
ND (0.32)
NO (48)
Xylene, m&p
69
540
220
NO (3000)
120
ND (150)
X lene, o-
21
150
75
NO 1600
38
NO 81
NON-RESIDENTIAL RISK CALCULATIONS SUMMARY
Non -Residential Acceptable Carcinogenic
Sum Risk Range and Maximum Non -Cancer
Hazard Index
Calculated Sample Sum Cancer Risk 8.1 E-07
0.0E+00
1.4E-06
NC
1.0 E-04
Calculated Sample Non -Carcinogenic 4.0E-02
Hazard Index
1.1E+
1.4E-02
NC
HI=1
NOTES:
Concentration units ug/m3
ND = Not detected above the lab reporting limits shown in parenthesis.
NE = Not Established
Indoor Air Screening Levels from the NCDEO February 2018 VISL Table
Italicized values represent detection limit above the IHSB Residential Soil -Gas screening Level.
Blue shaded values represent detection limit above the IHSB Non -Residential Soil -Gas Screening Level.
Bold values exceed the IHSB Residential Soil -Gas Screening Level,
Gray Shaded values exceed the IHSB Non -Residential Soil -Gas Screening Level.
IHSB Residential/Non-Residential screening levels displayed for Xylenes are for the summation of all isomers and not for the
individual isomer. Cells for individual isomers might not be in italics, and/or shaded when the summation (total amount of all
isomers) exceeds the limits for these parameters. User discretion is advised when interpreting these results.
Page 1

TABLE 3.2
SUMMARY OF CHEMICAL CONSTITUENTS DETECTED IN INDOOR AIR (CRAWL SPACE)
AND RISK CALCULATIONS
VENABLE TOBACCO COMPANY
DURHAM, NORTH CAROLINA
MID -ATLANTIC JOB NO. R3155.00
Sample ID
CS-1
OA-1
NCDEQ DWM Residential Indoor Air
NCDEQ DWM Non -Residential Indoor Air
Screening Levels
(February 2018) (ug/m3)
Screening Levels
(February 2018) (ug/m3)
Sampling Date
7/17/2019
7/17/2019
Acetone
73
12
6500
27000
Benzene
0.31
0.29
6.3
26
2-Butanone (MEK)
5.5
1.4 J
1000
4400
Carbon Tetrachloride
0.43
0.57
21
88
Chloroform
0.83
0.2
12
53
Chloromethane
1.5
1.5
19
79
Dichlorodifluoromethane (Freon
1.9
2.3
21
88
12)
1,2-Dichloroethane
3.4
<0.054
1.5
6.1
Ethanol
3000
12
NE
NE
Ethyl Acetate
2.7
2.4
15
61
Ethylbenzene
1.1
0.10 J
110
490
Heptane
0.99
0.25
83
350
Isopropanol
55
42
180
Methylene Chloride
0.49 J
1.8
130
530
4-Methyl-2-pentanone (MIBK)
1.3
<0.069
630
2600
Naphthalene
1.2
0.17 J
0.63
2.6
Styrene
1.1
0.15 J
210
880
Tetrachloroethylene
0.19 J
<0.13
8.3
35
Toluene
2.5
0.72
1000
4400
1,1,2-Trichloroethane
<0.079
<0.079
0.042
0.18
Trichloroethylene
0.15 J
0.10 J
0.42
1.8
Trichlorofluoromethane
1.0
1.2
NE
NE
1,1,2-Trichloro-1,2,2-
0.41 J
0.49 J
1000
4400
trifluoroethane (Freon 113)
1,2,4-Trimethylbenzene
<0.11
0.13 J
13
53
1,3,5-Trimethylbenzene
0.21
<0.11
13
53
Xylenes
4.6
0.41
88
88
NON-RESIDENTIAL RISK CALCULATIONS SUMMARY
Non -Residential Acceptable Carcinogenic
Sum Risk Range and Maximum Non -Cancer Hazard Index
Calculated Sample Sum Cancer
1.3E-05
NC
1.0 E-04
Risk
Calculated Sample Non-
7.4E-01
NC
HI=1
Carcinogenic Hazard Index
Notes:
Concentration units; ug/m3
J = Estimated Concentration
NC = Not Calculated
<0.34 = Not detected above the lab method detection limit
Soil Gas Screening Levels from the NCDEQ February 2018 VISL Table
Italicized values represent detection limit above the Residential Screening Level.
Bold values exceed the Residential Screening Level.
Gray Shaded values exceed the Non -Residential Screening Level.

APPENDIX A
INDOOR AIR BUILDING SURVEY AND SAMPLING FORM
Mid Atlantic

INDOOR AIR BUILDING SURVEY
and SAMPLING FORM
Site Name: vC, C <5--G
Preparer's name:
Preparer's affiliation
Part I - Occupants
Building Address:
Property Contact:
Contact's Phone:
&� G�
sa
Date: -?/ AV/1
Phone #: 7r,H Ga`t oz {A-5
/L) C— Z 77e; r
Owner 1 Renter 1 other:
home ( work ( )
# of Building occupants: Children under age 13 Children age 13-18
Part_II — Building Characteristics
cell 015"70 4 -t -1 4 `i 4 6
Adults OX-4' SP"",
Building type: residential 1 multi -family residential I c� l strip mall 1 mmercial industriai
Describe building: We- -5 , 4,,.'-;e-.1v-H- s -- (.-a Year constructed: I q5Z
Sensitive population: day care 1 nursing home 1 hospital 1 school 1 other (specify): ,-)),4-
Number of floors below grade: (full basement 1 ravels 1 slab on grade)
Number of floors at or above grade: Z
Depth of basement below grade surface: 14- ft. Basement size: rJ 1-,4' ft 2
Basement floor construction: concrete 1 dirt 1 floating 1 stone I other (specify): _
Foundation walls: poured concrete I cinder blocks 1 stone ! other (specify)
Basement sump present? Yes 1( Sump pump? Yes 1 No Water in sump? Yes 1 No
Type of heating system (circle all that apply):
hot air circulation hot air radiation wood steam radiation
rlieat pum hot water radiation kerosene heater electric baseboard
other sp cify):
Type of ventilation s stein (circle all that apply):
entral air conditio mechanical fans bathroom ventilation fans
individual air conditioning units kitchen range hood fan outside air intake
other (specify):
Type of fuel utilized (c' all that apply):
1 electric / , fuel oil I wood / coal / solar I kerosene
Are the basement walls or floor sealed with waterproof paint or epoxy coatings'? Yes 1 CN
/�./ 1,4
�,c fe,

Is there a whole house fan? Yes /6
Septic system? Yes / Yes (but not used) I�
Irrigation/private well? Yes / Yes (hut trot used) /
Type of ground cover outside of building: ss oncret �1 asph -'1 other (specify)
Existing subsurface depressurization (radon) system in place? Yes I6V - active 1passive
Sub -slab vapor/moisture barrier in place? 1 No
Type of barrier:
Part III - Outside Contaminant Sources
Other stationary sources nearby (gas stations, emission stacks, etc.):
Heavy vehicular traffic nearby (or other mobile sources): &-,j pc"Ck�--o 5-]-
Part IV - Indoor Contaminant Sources
Identify all potential indoor sources found in the building (including attached garages) and crawlspace (if
present), the location of the source (floor and room), and whether the item was removed from the building
48 hours prior to indoor air sampling event. Any ventilation implemented after removal of the items
should be completed at least 24 hours prior to the commencement of the indoor air sampling event.
Potential Sources
Location(s)
Removed
(Yes 1 No I NA)
Gasoline storage cans
Gas -powered equipment
Kerosene storage cans
Paints 1 thinners I strippers
C_ S—
Cleaning solvents
Oven cleaners
Carpet 1 upholstery cleaners
Other house cleaning products
Moth balls
Polishes 1 waxes
Insecticides
Furniture 1 floor polish
Nail polish 1 polish remover
Hairspray
Cologne I perfume
Air fresheners
Fuel tank (inside building)
NA
Wood stove or fireplace
NA
New furniture 1 upholstery
New carpeting 1 flooring
NA
Hobbies - glues, paints, etc.

Part V — Miscellaneous Items
Do any occupants of the building smoke? Yes 1 No
How often? CIA6411^
Last time someone smoked in the building? UA P-1 hours I da)ls ago
Does the building have an attached garage directly connected to living space? Yes
If so, is a car usually parked in the garage? Yes 1 NO nI,A
Are gas -powered equipment or cans of gasoline/fuels stored in the garage? Yes I No111'4-
Do the occupants of the building have their clothes dry cleaned? Yes 1 No 0Vv,-vx
If yes, how often? weekly 1 monthly 13-4 times a year
Do any of the occupants use solvents in work? Ce'' I No
If yes, what types of solvents are used?
If yes, are their clothes washed at work? Yes 1 No VAG'w'"f
Have any pesticides/herbicides been applied around the building or in the yard?
If so, when and which chemicals?
Has there ever been a fire in the building? Yes 161 If yes, when?
Has painting or staining been done in the building in the last 6 months?
If yes. when
4pFM,y :5 --vF ks _%,
Part VI — Sampling Information
Sample Technician: r"!,� C �e L
and where? 0, 6-c I � ly f o'.
Yes 1 No -'A"
(1j)1 No
Phone number:. ( 7w ) �"9 - a 24 5
Sample Source: Indoor Air 1 Crawlspace Air Sub -Slab 1 Near Slab Soil Gas 1 Exterior Soil Gas
Sampler Type: Tedlar bag 1 Sorbent 1 Stainless Steel Canister Other (specify):
Analytical Met TO-I5 1 TO-17 1 other: Cert. Laboratory: C_j5;1-7e-%,-i-
Sample locations (floor, room):
Field 113# CS-1 - C, a_—1 SF-hrce Field 1D # -
Field ID # -
Field ID # -
Were "Instructions for Occupants" followed? Yes. I No
If not, describe modifications:

Provide Drawing o_f'Sample Location(s) in Building
Part VII - Meteorological Conditions
Was there significant precipitation within 12 hours prior to (or during) the sampling event? Yes I No
Describe the general weather conditions: q05
Part VIII — General Observations
Provide any information that may be pertinent to the sampling event and may assist in the data
interpretation process (e.g., observed that drycleaner operated with door or windows propped open for
ventilation).
(Adapted from the NJDEP Vapor Intrusion Guidance, October 2005)

APPENDIX B
LABORATORY ANALYTICAL REPORT AND CHAIN OF CUSTODY
RECORD
Mid Atlantic

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
August 14, 2019
Dan Nielsen
Mid -Atlantic Associates, Inc. - Raleigh, NC
409 Rogers View Court
Raleigh, NC 27610
Project Location: Durham, NC
Client Job Number:
Project Number: R3155.00
Laboratory Work Order Number: 19G1151
Enclosed are results of analyses for samples received by the laboratory on July 18, 2019. If you have any questions concerning
this report, please feel free to contact me.
Sincerely,
I,&, �. A��
Kerry K. McGee
Project Manager
QA Officer
Katherine Allen
Laboratory Manager
Daren Damboragian
Page 1 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Mid -Atlantic Associates, Inc. - Raleigh, NC REPORT DATE: 8/14/2019
409 Rogers View Court
Raleigh, NC 27610 PURCHASE ORDER NUMBER: R3155.00
ATTN: Dan Nielsen
PROJECT NUMBER: R3155.00
ANALYTICAL SUMMARY
WORK ORDER NUMBER: 19G1151
The results of analyses performed on the following samples submitted to the CON -TEST Analytical Laboratory are found in this report.
PROJECT LOCATION: Durham, NC
FIELD SAMPLE # LAB ID: MATRIX SAMPLE DESCRIPTION TEST SUB LAB
SG-2
19G1151-01
Soil Gas
EPATO-15
SG-3
19G1151-02
Soil Gas
EPATO-15
SG-1
19G1151-03
Soil Gas
EPATO-15
SG-5
19G1151-04
Soil Gas
EPATO-15
SG-4
19G1151-05
Soil Gas
EPATO-15
SG-D
19G1151-06
Soil Gas
EPATO-15
CS-1
19G1151-07
Indoor air
EPA TO-15
OA-1
19G1151-08
Ambient Air
EPA TO-15
Unused Can/Reg #2189/3367
19G1151-09
Air
Page 2 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CASE NARRATIVE SUMMARY
All reported results are within defined laboratory quality control objectives unless listed below or otherwise qualified in this report.
REVISED REPORT: 8/14/2019 - Sample 19G1151-05 rerun per client's request.
REVISED REPORT: 8/13/2019 -For method TO-15, sample 19G1151-05- results have been updated, sample contained Heptane.
Page 3 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
EPA TO-15
Qualifications:
Laboratory fortified blank /laboratory control sample recovery outside of control limits. Data validation is not affected since all results are
"not detected" for all samples in this batch for this compound and bias is on the high side.
Analyte & Samples(s) Qualified:
1,2,4-Trichlorobenzene, Hexachlorobutadicne, Naphthalene
B236733-BS1, B238009-BS I
Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this compound is likely to be
biased on the low side.
Analyte & Samples(s) Qualified:
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113), 1,1-Dichloroethane, 1,1-Dichloroethylene, Carbon Disulfide, Methyl tert-Butyl Ether (MTBE),
Trichlorofluoromethane (Freon 11)
19G1151-07[CS-1], 19GII51-08[OA-1], B236275-BLKI, B236275-BSI
Elevated reporting limit due to high concentration of target compounds.
Analyte & Samples(s) Qualified:
19G1151-02[SG-3], 19G1151-06[SG-D]
Elevated reporting limit due to matrix interference.
Analyte & Samples(s) Qualified:
19G1151-05[SG-4], 19G1151-05REI[SG-4]
Continuing calibration verification (CCV) did not meet method specifications and was biased on the low side for this compound.
Analyte & Samples(s) Qualified:
cis-1,2-Dichloroethylene, Ethanol
19G1151-07[CS-1], 19G1151-08[OA-1], B236275-BLKI, B236275-BSI, S038380-CCVI, 19G1151-05RE1[SG-4], 19G1151-07RE1[CS-1], B238009-BLKI, B238009-BSI,
B238009-DUP1, S039169-CCVI
Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side. Data validation is not affected
since sample result was "not detected" for this compound.
Analyte & Samples(s) Qualified:
1,2,4-Trichlorobenzene, Naphthalene
B238009-BSI, S039169-CCVI
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side for this compound. Reported result is
estimated.
Analyte & Samples(s) Qualified:
Naphthalene
19G1151-07[CS-1], B236275-BS1, S038380-CCVI
Initial calibration verification (ICV) did not meet method specifications and was biased on the high side. Data validation is not affected since
sample result was "not detected" for this compound.
Analyte & Samples(s) Qualified:
1,2,4-Trichlorobenzene
B236275-BSI, S038380-CCVI
Page 4 of 56

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ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ' FAX [phone] ` TEL. [phone]
Compound fails the method requirement of 70-l3O% recovery for the LCS. Is classified by the lab as a difficult compound and passes the in
house limits of 50-150%.
Analyte & Samples(s) Qualified:
Ethanol, Naphthalene
19Gll51-05RE1[SG-4], B236733-BLKI, B236733-BSI, B238009-BLKI, B238009-BSI, B238009-DUPI
The results of analyses reported only relate to samples submitted to the Con -Test Analytical Laboratory for testing.
I certify that the analyses listed above, unless specifically listed as subcontracted, if any, were performed under my direction according to the approved methodologies listed
in this document, and that based upon my inquiry of those individuals immediately responsible for obtaining the information, the material contained in this report is, to the
best of my knowledge and belief, accurate and complete.
d�
Lisa A. Worthington
Technical Representative
Page 5 of 56

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ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: SG-2
Sample ID: 19G1151-01
Sample Matrix: Soil Gas
Sampled: 7/17/2019 11:02
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location: Work Order: 19G1151
Sub Description/Location: Initial Vacuum(in Hg): -28
Canister ID: 2366 Final Vacuum(in Hg): -4
Canister Size: 3 liter Receipt Vacuum(in Hg): -6.2
Flow Controller ID: 4348 Flow Controller Type: Fixed -Orifice
Sample Type: 30 min Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
64
8.0
2.8
150
19
6.6
4
7/28/19 2:47
BRF
Benzene
8.3
0.20
0.082
27
0.64
0.26
4
7/28/19 2:47
BRF
Benzyl chloride
ND
0.20
0.044
ND
1.0
0.23
4
7/28/19 2:47
BRF
Bromodichloromethane
ND
0.20
0.074
ND
1.3
0.49
4
7/28/19 2:47
BRF
Bromoform
ND
0.20
0.090
ND
2.1
0.93
4
7/28/19 2:47
BRF
Bromomethane
ND
2.0
0.14
ND
7.8
0.53
4
7/28/19 2:47
BRF
1,3-Butadiene
ND
0.20
0.13
ND
0.44
0.28
4
7/28/19 2:47
BRF
2-Butanone (MEK)
15
8.0
0.31
45
24
0.92
4
7/28/19 2:47
BRF
Carbon Disulfide
ND
2.0
0.14
ND
6.2
0.43
4
7/28/19 2:47
BRF
Carbon Tetrachloride
ND
0.20
0.065
ND
1.3
0.41
4
7/28/19 2:47
BRF
Chlorobenzene
ND
0.20
0.098
ND
0.92
0.45
4
7/28/19 2:47
BRF
Chloroethane
ND
0.20
0.12
ND
0.53
0.32
4
7/28/19 2:47
BRF
Chloroform
ND
0.20
0.074
ND
0.98
0.36
4
7/28/19 2:47
BRF
Chloromethane
ND
0.40
0.14
ND
0.83
0.28
4
7/28/19 2:47
BRF
Cyclohexane
ND
0.20
0.14
ND
0.69
0.49
4
7/28/19 2:47
BRF
Dibromochloromethane
ND
0.20
0.066
ND
1.7
0.57
4
7/28/19 2:47
BRF
1,2-Dibromoethane (EDB)
ND
0.20
0.078
ND
1.5
0.60
4
7/28/19 2:47
BRF
1,2-Dichlorobenzene
ND
0.20
0.096
ND
1.2
0.58
4
7/28/19 2:47
BRF
1,3-Dichlorobenzene
2.9
0.20
0.10
17
1.2
0.62
4
7/28/19 2:47
BRF
1,4-Dichlorobenzene
ND
0.20
0.12
ND
1.2
0.73
4
7/28/19 2:47
BRF
Dichlorodifluoromethane (Freon 12)
ND
0.20
0.087
ND
0.99
0.43
4
7/28/19 2:47
BRF
1, 1 -Dichloroethane
ND
0.20
0.061
ND
0.81
0.25
4
7/28/19 2:47
BRF
1,2-Dichloroethane
ND
0.20
0.076
ND
0.81
0.31
4
7/28/19 2:47
BRF
1, 1 -Dichloroethylene
ND
0.20
0.081
ND
0.79
0.32
4
7/28/19 2:47
BRF
cis-1,2-Dichloroethylene
ND
0.20
0.082
ND
0.79
0.32
4
7/28/19 2:47
BRF
trans-1,2-Dichloroethylene
ND
0.20
0.081
ND
0.79
0.32
4
7/28/19 2:47
BRF
1,2-Dichloropropane
ND
0.20
0.071
ND
0.92
0.33
4
7/28/19 2:47
BRF
cis- 1,3 -Dichloropropene
ND
0.20
0.070
ND
0.91
0.32
4
7/28/19 2:47
BRF
trans- 1, 3 -Dichloropropene
ND
0.20
0.073
ND
0.91
0.33
4
7/28/19 2:47
BRF
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 114) ND
0.20
0.10
ND
1.4
0.70
4
7/28/19 2:47
BRF
1,4-Dioxane
ND
2.0
1.3
ND
7.2
4.6
4
7/28/19 2:47
BRF
Ethanol
15
8.0
3.6
29
15
6.7
4
7/28/19 2:47
BRF
Ethyl Acetate
ND
0.20
0.15
ND
0.72
0.54
4
7/28/19 2:47
BRF
Ethylbenzene
29
0.20
0.12
120
0.87
0.50
4
7/28/19 2:47
BRF
4-Ethyltoluene
1.6
0.20
0.12
7.7
0.98
0.60
4
7/28/19 2:47
BRF
Heptane
5.8
0.20
0.12
24
0.82
0.48
4
7/28/19 2:47
BRF
Hexachlorobutadiene
ND
0.20
0.092
ND
2.1
0.98
4
7/28/19 2:47
BRF
Hexane
ND
8.0
0.35
ND
28
1.2
4
7/28/19 2:47
BRF
2-Hexanone (MBK)
ND
0.20
0.12
ND
0.82
0.48
4
7/28/19 2:47
BRF
Isopropanol
2.9
8.0
0.25 J
7.2
20
0.60
4
7/28/19 2:47
BRF
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.10
ND
0.72
0.36
4
7/28/19 2:47
BRF
Methylene Chloride
ND
2.0
0.24
ND
6.9
0.84
4
7/28/19 2:47
BRF
4-Methyl-2-pentanone (MIBK)
14
0.20
0.096
57
0.82
0.39
4
7/28/19 2:47
BRF
Naphthalene
0.46
0.20
0.15
2.4
1.0
0.80
4
7/28/19 2:47
BRF
Propene
400
120
3.0
680
210
5.1
60
7/29/19 16:58
BRF
Styrene
0.88
0.20
0.12
3.8
0.85
0.53
4
7/28/19 2:47
BRF
1,1,2,2-Tetrachloroethane
ND
0.20
0.089
ND
1.4
0.61
4
7/28/19 2:47
BRF
Page 6 of 56

icon-tes w .
ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: SG-2
Sample ID: 19G1151-01
Sample Matrix: Soil Gas
Sampled: 7/ 17/2019 11:02
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2366
Canister Size: 3 liter
Flow Controller ID: 4348
Sample Type: 30 min
Work Order: 19G1151
Initial Vacuum(in Hg): -28
Final Vacuum(in Hg): -4
Receipt Vacuum(in Hg): -6.2
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.13
0.20
0.11
J 0.87
1.4
0.75
4
7/28/19 2:47
BRF
Tetrahydrofuran
ND
0.20
0.13
ND
0.59
0.39
4
7/28/19 2:47
BRF
Toluene
14
0.20
0.10
52
0.75
0.39
4
7/28/19 2:47
BRF
1,2,4-Trichlorobenzene
ND
0.20
0.14
ND
1.5
1.0
4
7/28/19 2:47
BRF
1, 1, 1 -Trichloroethane
ND
0.20
0.075
ND
1.1
0.41
4
7/28/19 2:47
BRF
1,1,2-Trichloroethane
ND
0.20
0.082
ND
1.1
0.45
4
7/28/19 2:47
BRF
Trichloroethylene
ND
0.20
0.081
ND
1.1
0.43
4
7/28/19 2:47
BRF
Trichlorofluoromethane (Freon 11)
ND
0.80
0.12
ND
4.5
0.65
4
7/28/19 2:47
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.12
ND
6.1
0.93
4
7/28/19 2:47
BRF
1,2,4-Trimethylbenzene
1.3
0.20
0.13
6.2
0.98
0.63
4
7/28/19 2:47
BRF
1,3,5-Trimethylbenzene
0.50
0.20
0.13
2.5
0.98
0.62
4
7/28/19 2:47
BRF
Vinyl Acetate
ND
4.0
0.095
ND
14
0.34
4
7/28/19 2:47
BRF
Vinyl Chloride
ND
0.20
0.13
ND
0.51
0.32
4
7/28/19 2:47
BRF
m&p-Xylene
120
0.40
0.23
540
1.7
1.00
4
7/28/19 2:47
BRF
o-Xylene
35
0.20
0.12
150
0.87
0.54
4
7/28/19 2:47
BRF
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
98.9 70-130
100 70-130
7/29/19 16:58
7/28/19 2:47
Page 7 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: SG-3
Canister ID: 2271
Final Vacuum(in Hg): -3.5
Sample ID: 19G1151-02
Canister Size: 3 liter
Receipt Vacuum(in Hg): -6.2
Sample Matrix: Soil Gas
Flow Controller ID: 4356
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 11:52
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Sample Flags: RL-11
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
20
6.9
ND
48
16
10
7/28/19 3:15
BRF
Benzene
25
0.50
0.21
79
1.6
0.66
10
7/28/19 3:15
BRF
Benzyl chloride
ND
0.50
0.11
ND
2.6
0.57
10
7/28/19 3:15
BRF
Bromodichloromethane
ND
0.50
0.18
ND
3.4
1.2
10
7/28/19 3:15
BRF
Bromoform
ND
0.50
0.22
ND
5.2
2.3
10
7/28/19 3:15
BRF
Bromomethane
ND
5.0
0.34
ND
19
1.3
10
7/28/19 3:15
BRF
1,3-Butadiene
ND
0.50
0.32
ND
1.1
0.70
10
7/28/19 3:15
BRF
2-Butanone (MEK)
ND
20
0.78
ND
59
2.3
10
7/28/19 3:15
BRF
Carbon Disulfide
28
5.0
0.34
89
16
1.1
10
7/28/19 3:15
BRF
Carbon Tetrachloride
ND
0.50
0.16
ND
3.1
1.0
10
7/28/19 3:15
BRF
Chlorobenzene
ND
0.50
0.24
ND
2.3
1.1
10
7/28/19 3:15
BRF
Chloroethane
ND
0.50
0.30
ND
1.3
0.80
10
7/28/19 3:15
BRF
Chloroform
ND
0.50
0.19
ND
2.4
0.91
10
7/28/19 3:15
BRF
Chloromethane
ND
1.0
0.34
ND
2.1
0.70
10
7/28/19 3:15
BRF
Cyclohexane
ND
0.50
0.36
ND
1.7
1.2
10
7/28/19 3:15
BRF
Dibromochloromethane
ND
0.50
0.17
ND
4.3
1.4
10
7/28/19 3:15
BRF
1,2-Dibromoethane (EDB)
ND
0.50
0.20
ND
3.8
1.5
10
7/28/19 3:15
BRF
1,2-Dichlorobenzene
ND
0.50
0.24
ND
3.0
1.4
10
7/28/19 3:15
BRF
1,3-Dichlorobenzene
7.0
0.50
0.26
42
3.0
1.6
10
7/28/19 3:15
BRF
1,4-Dichlorobenzene
ND
0.50
0.30
ND
3.0
1.8
10
7/28/19 3:15
BRF
Dichlorodifluoromethane (Freon 12)
ND
0.50
0.22
ND
2.5
1.1
10
7/28/19 3:15
BRF
1,1-Dichloroethane
ND
0.50
0.15
ND
2.0
0.62
10
7/28/19 3:15
BRF
1,2-Dichloroethane
ND
0.50
0.19
ND
2.0
0.77
10
7/28/19 3:15
BRF
1,1-Dichloroethylene
ND
0.50
0.20
ND
2.0
0.80
10
7/28/19 3:15
BRF
cis-1,2-Dichloroethylene
ND
0.50
0.20
ND
2.0
0.81
10
7/28/19 3:15
BRF
trans-1,2-Dichloroethylene
ND
0.50
0.20
ND
2.0
0.80
10
7/28/19 3:15
BRF
1,2-Dichloropropane
ND
0.50
0.18
ND
2.3
0.82
10
7/28/19 3:15
BRF
cis- 1,3 -Dichloropropene
ND
0.50
0.18
ND
2.3
0.79
10
7/28/19 3:15
BRF
trans- 1, 3 -Dichloropropene
ND
0.50
0.18
ND
2.3
0.83
10
7/28/19 3:15
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.50
0.25
ND
3.5
1.7
10
7/28/19 3:15
BRF
1,4-Dioxane
ND
5.0
3.2
ND
18
12
10
7/28/19 3:15
BRF
Ethanol
12
20
8.9
J 23
38
17
10
7/28/19 3:15
BRF
Ethyl Acetate
ND
0.50
0.37
ND
1.8
1.3
10
7/28/19 3:15
BRF
Ethylbenzene
14
0.50
0.29
60
2.2
1.3
10
7/28/19 3:15
BRF
4-Ethyltoluene
9.7
0.50
0.30
48
2.5
1.5
10
7/28/19 3:15
BRF
Heptane
170
0.50
0.29
710
2.0
1.2
10
7/28/19 3:15
BRF
Hexachlorobutadiene
ND
0.50
0.23
ND
5.3
2.5
10
7/28/19 3:15
BRF
Hexane
360
20
0.88
1300
70
3.1
10
7/28/19 3:15
BRF
2-Hexanone (MBK)
ND
0.50
0.30
ND
2.0
1.2
10
7/28/19 3:15
BRF
Isopropanol
ND
20
0.61
ND
49
1.5
10
7/28/19 3:15
BRF
Methyl tert-Butyl Ether (MTBE)
ND
0.50
0.25
ND
1.8
0.90
10
7/28/19 3:15
BRF
Methylene Chloride
ND
5.0
0.61
ND
17
2.1
10
7/28/19 3:15
BRF
4-Methyl-2-pentanone (MIBK)
ND
0.50
0.24
ND
2.0
0.99
10
7/28/19 3:15
BRF
Naphthalene
ND
0.50
0.38
ND
2.6
2.0
10
7/28/19 3:15
BRF
Propene
ND
20
0.50
ND
34
0.85
10
7/28/19 3:15
BRF
Styrene
2.3
0.50
0.31
9.8
2.1
1.3
10
7/28/19 3:15
BRF
1,1,2,2-Tetrachloroethane
ND
0.50
0.22
ND
3.4
1.5
10
7/28/19 3:15
BRF
Page 8 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -28
Field Sample #: SG-3
Canister ID: 2271
Final Vacuum(in Hg): -3.5
Sample ID: 19G1151-02
Canister Size: 3 liter
Receipt Vacuum(in Hg): -6.2
Sample Matrix: Soil Gas
Flow Controller ID: 4356
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 11:52
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Sample Flags: RL-11
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
0.52
0.50
0.28
3.5
3.4
1.9
10
7/28/19 3:15
BRF
Tetrahydrofuran
ND
0.50
0.33
ND
1.5
0.98
10
7/28/19 3:15
BRF
Toluene
84
0.50
0.26
320
1.9
0.97
10
7/28/19 3:15
BRF
1,2,4-Trichlorobenzene
ND
0.50
0.34
ND
3.7
2.6
10
7/28/19 3:15
BRF
1, 1, 1 -Trichloroethane
ND
0.50
0.19
ND
2.7
1.0
10
7/28/19 3:15
BRF
1,1,2-Trichloroethane
ND
0.50
0.21
ND
2.7
1.1
10
7/28/19 3:15
BRF
Trichloroethylene
ND
0.50
0.20
ND
2.7
1.1
10
7/28/19 3:15
BRF
Trichlorofluoromethane (Freon 11)
ND
2.0
0.29
ND
11
1.6
10
7/28/19 3:15
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
2.0
0.30
ND
15
2.3
10
7/28/19 3:15
BRF
1,2,4-Trimethylbenzene
12
0.50
0.32
57
2.5
1.6
10
7/28/19 3:15
BRF
1,3,5-Trimethylbenzene
4.0
0.50
0.31
20
2.5
1.5
10
7/28/19 3:15
BRF
Vinyl Acetate
ND
10
0.24
ND
35
0.84
10
7/28/19 3:15
BRF
Vinyl Chloride
ND
0.50
0.32
ND
1.3
0.81
10
7/28/19 3:15
BRF
m&p-Xylene
51
1.0
0.58
220
4.3
2.5
10
7/28/19 3:15
BRF
o-Xylene
17
0.50
0.31
75
2.2
1.4
10
7/28/19 3:15
BRF
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 99.8 70-130 7/28/19 3:15
Page 9 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -30
Field Sample #: SG-1
Canister ID: 2371
Final Vacuum(in Hg): -3.5
Sample ID: 19G1151-03
Canister Size: 3 liter
Receipt Vacuum(in Hg): -5.9
Sample Matrix: Soil Gas
Flow Controller ID: 4343
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 12:45
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
59
8.0
2.8
140
19
6.6
4
7/28/19 4:11
BRF
Benzene
14
0.20
0.082
46
0.64
0.26
4
7/28/19 4:11
BRF
Benzyl chloride
ND
0.20
0.044
ND
1.0
0.23
4
7/28/19 4:11
BRF
Bromodichloromethane
ND
0.20
0.074
ND
1.3
0.49
4
7/28/19 4:11
BRF
Bromoform
ND
0.20
0.090
ND
2.1
0.93
4
7/28/19 4:11
BRF
Bromomethane
ND
2.0
0.14
ND
7.8
0.53
4
7/28/19 4:11
BRF
1,3-Butadiene
ND
0.20
0.13
ND
0.44
0.28
4
7/28/19 4:11
BRF
2-Butanone (MEK)
13
8.0
0.31
40
24
0.92
4
7/28/19 4:11
BRF
Carbon Disulfide
28
2.0
0.14
88
6.2
0.43
4
7/28/19 4:11
BRF
Carbon Tetrachloride
ND
0.20
0.065
ND
1.3
0.41
4
7/28/19 4:11
BRF
Chlorobenzene
ND
0.20
0.098
ND
0.92
0.45
4
7/28/19 4:11
BRF
Chloroethane
ND
0.20
0.12
ND
0.53
0.32
4
7/28/19 4:11
BRF
Chloroform
ND
0.20
0.074
ND
0.98
0.36
4
7/28/19 4:11
BRF
Chloromethane
ND
0.40
0.14
ND
0.83
0.28
4
7/28/19 4:11
BRF
Cyclohexane
ND
0.20
0.14
ND
0.69
0.49
4
7/28/19 4:11
BRF
Dibromochloromethane
ND
0.20
0.066
ND
1.7
0.57
4
7/28/19 4:11
BRF
1,2-Dibromoethane (EDB)
ND
0.20
0.078
ND
1.5
0.60
4
7/28/19 4:11
BRF
1,2-Dichlorobenzene
ND
0.20
0.096
ND
1.2
0.58
4
7/28/19 4:11
BRF
1,3-Dichlorobenzene
3.7
0.20
0.10
22
1.2
0.62
4
7/28/19 4:11
BRF
1,4-Dichlorobenzene
ND
0.20
0.12
ND
1.2
0.73
4
7/28/19 4:11
BRF
Dichlorodifluoromethane (Freon 12)
ND
0.20
0.087
ND
0.99
0.43
4
7/28/19 4:11
BRF
1,1-Dichloroethane
ND
0.20
0.061
ND
0.81
0.25
4
7/28/19 4:11
BRF
1,2-Dichloroethane
ND
0.20
0.076
ND
0.81
0.31
4
7/28/19 4:11
BRF
1,1-Dichloroethylene
ND
0.20
0.081
ND
0.79
0.32
4
7/28/19 4:11
BRF
cis-1,2-Dichloroethylene
ND
0.20
0.082
ND
0.79
0.32
4
7/28/19 4:11
BRF
trans-1,2-Dichloroethylene
ND
0.20
0.081
ND
0.79
0.32
4
7/28/19 4:11
BRF
1,2-Dichloropropane
ND
0.20
0.071
ND
0.92
0.33
4
7/28/19 4:11
BRF
cis- 1,3 -Dichloropropene
ND
0.20
0.070
ND
0.91
0.32
4
7/28/19 4:11
BRF
trans- 1, 3 -Dichloropropene
ND
0.20
0.073
ND
0.91
0.33
4
7/28/19 4:11
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.10
ND
1.4
0.70
4
7/28/19 4:11
BRF
1,4-Dioxane
ND
2.0
1.3
ND
7.2
4.6
4
7/28/19 4:11
BRF
Ethanol
14
8.0
3.6
26
15
6.7
4
7/28/19 4:11
BRF
Ethyl Acetate
ND
0.20
0.15
ND
0.72
0.54
4
7/28/19 4:11
BRF
Ethylbenzene
4.7
0.20
0.12
20
0.87
0.50
4
7/28/19 4:11
BRF
4-Ethyltoluene
2.6
0.20
0.12
13
0.98
0.60
4
7/28/19 4:11
BRF
Heptane
15
0.20
0.12
59
0.82
0.48
4
7/28/19 4:11
BRF
Hexachlorobutadiene
ND
0.20
0.092
ND
2.1
0.98
4
7/28/19 4:11
BRF
Hexane
120
8.0
0.35
420
28
1.2
4
7/28/19 4:11
BRF
2-Hexanone (MBK)
ND
0.20
0.12
ND
0.82
0.48
4
7/28/19 4:11
BRF
Isopropanol
ND
8.0
0.25
ND
20
0.60
4
7/28/19 4:11
BRF
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.10
ND
0.72
0.36
4
7/28/19 4:11
BRF
Methylene Chloride
ND
2.0
0.24
ND
6.9
0.84
4
7/28/19 4:11
BRF
4-Methyl-2-pentanone (MIBK)
4.7
0.20
0.096
19
0.82
0.39
4
7/28/19 4:11
BRF
Naphthalene
0.44
0.20
0.15
2.3
1.0
0.80
4
7/28/19 4:11
BRF
Propene
1100
120
3.0
1800
210
5.1
60
7/29/19 17:26
BRF
Styrene
1.3
0.20
0.12
5.3
0.85
0.53
4
7/28/19 4:11
BRF
1,1,2,2-Tetrachloroethane
ND
0.20
0.089
ND
1.4
0.61
4
7/28/19 4:11
BRF
Page 10 of 56

icon-tes w .
ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: SG-1
Sample ID: 19G1151-03
Sample Matrix: Soil Gas
Sampled: 7/ 17/2019 12:45
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2371
Canister Size: 3 liter
Flow Controller ID: 4343
Sample Type: 30 min
Work Order: 19G1151
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3.5
Receipt Vacuum(in Hg): -5.9
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.21
0.20
0.11
1.4
1.4
0.75
4
7/28/19 4:11
BRF
Tetrahydrofuran
ND
0.20
0.13
ND
0.59
0.39
4
7/28/19 4:11
BRF
Toluene
34
0.20
0.10
130
0.75
0.39
4
7/28/19 4:11
BRF
1,2,4-Trichlorobenzene
0.33
0.20
0.14
2.5
1.5
1.0
4
7/28/19 4:11
BRF
1, 1, 1 -Trichloroethane
ND
0.20
0.075
ND
1.1
0.41
4
7/28/19 4:11
BRF
1,1,2-Trichloroethane
ND
0.20
0.082
ND
1.1
0.45
4
7/28/19 4:11
BRF
Trichloroethylene
ND
0.20
0.081
ND
1.1
0.43
4
7/28/19 4:11
BRF
Trichlorofluoromethane (Freon 11)
0.14
0.80
0.12
J 0.81
4.5
0.65
4
7/28/19 4:11
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.12
ND
6.1
0.93
4
7/28/19 4:11
BRF
1,2,4-Trimethylbenzene
2.5
0.20
0.13
12
0.98
0.63
4
7/28/19 4:11
BRF
1,3,5-Trimethylbenzene
1.1
0.20
0.13
5.2
0.98
0.62
4
7/28/19 4:11
BRF
Vinyl Acetate
ND
4.0
0.095
ND
14
0.34
4
7/28/19 4:11
BRF
Vinyl Chloride
ND
0.20
0.13
ND
0.51
0.32
4
7/28/19 4:11
BRF
m&p-Xylene
16
0.40
0.23
69
1.7
1.00
4
7/28/19 4:11
BRF
o-Xylene
4.9
0.20
0.12
21
0.87
0.54
4
7/28/19 4:11
BRF
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
102 70-130
99.7 70-130
7/28/19 4:11
7/29/ 19 17:26
Page 11 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -30
Field Sample #: SG-5
Canister ID: 2367
Final Vacuum(in Hg): -3.5
Sample ID: 19G1151-04
Canister Size: 3 liter
Receipt Vacuum(in Hg): -5.4
Sample Matrix: Soil Gas
Flow Controller ID: 4328
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 13:20
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
50
8.0
2.8
120
19
6.6
4
7/28/19 5:08
BRF
Benzene
14
0.20
0.082
46
0.64
0.26
4
7/28/19 5:08
BRF
Benzyl chloride
ND
0.20
0.044
ND
1.0
0.23
4
7/28/19 5:08
BRF
Bromodichloromethane
ND
0.20
0.074
ND
1.3
0.49
4
7/28/19 5:08
BRF
Bromoform
ND
0.20
0.090
ND
2.1
0.93
4
7/28/19 5:08
BRF
Bromomethane
ND
2.0
0.14
ND
7.8
0.53
4
7/28/19 5:08
BRF
1,3-Butadiene
ND
0.20
0.13
ND
0.44
0.28
4
7/28/19 5:08
BRF
2-Butanone (MEK)
12
8.0
0.31
35
24
0.92
4
7/28/19 5:08
BRF
Carbon Disulfide
27
2.0
0.14
83
6.2
0.43
4
7/28/19 5:08
BRF
Carbon Tetrachloride
ND
0.20
0.065
ND
1.3
0.41
4
7/28/19 5:08
BRF
Chlorobenzene
ND
0.20
0.098
ND
0.92
0.45
4
7/28/19 5:08
BRF
Chloroethane
ND
0.20
0.12
ND
0.53
0.32
4
7/28/19 5:08
BRF
Chloroform
11
0.20
0.074
52
0.98
0.36
4
7/28/19 5:08
BRF
Chloromethane
ND
0.40
0.14
ND
0.83
0.28
4
7/28/19 5:08
BRF
Cyclohexane
ND
0.20
0.14
ND
0.69
0.49
4
7/28/19 5:08
BRF
Dibromochloromethane
ND
0.20
0.066
ND
1.7
0.57
4
7/28/19 5:08
BRF
1,2-Dibromoethane (EDB)
ND
0.20
0.078
ND
1.5
0.60
4
7/28/19 5:08
BRF
1,2-Dichlorobenzene
ND
0.20
0.096
ND
1.2
0.58
4
7/28/19 5:08
BRF
1,3-Dichlorobenzene
5.7
0.20
0.10
34
1.2
0.62
4
7/28/19 5:08
BRF
1,4-Dichlorobenzene
ND
0.20
0.12
ND
1.2
0.73
4
7/28/19 5:08
BRF
Dichlorodifluoromethane (Freon 12)
ND
0.20
0.087
ND
0.99
0.43
4
7/28/19 5:08
BRF
1,1-Dichloroethane
ND
0.20
0.061
ND
0.81
0.25
4
7/28/19 5:08
BRF
1,2-Dichloroethane
ND
0.20
0.076
ND
0.81
0.31
4
7/28/19 5:08
BRF
1,1-Dichloroethylene
ND
0.20
0.081
ND
0.79
0.32
4
7/28/19 5:08
BRF
cis-1,2-Dichloroethylene
ND
0.20
0.082
ND
0.79
0.32
4
7/28/19 5:08
BRF
trans-1,2-Dichloroethylene
ND
0.20
0.081
ND
0.79
0.32
4
7/28/19 5:08
BRF
1,2-Dichloropropane
ND
0.20
0.071
ND
0.92
0.33
4
7/28/19 5:08
BRF
cis- 1,3 -Dichloropropene
ND
0.20
0.070
ND
0.91
0.32
4
7/28/19 5:08
BRF
trans- 1, 3 -Dichloropropene
ND
0.20
0.073
ND
0.91
0.33
4
7/28/19 5:08
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
0.20
0.10
ND
1.4
0.70
4
7/28/19 5:08
BRF
1,4-Dioxane
ND
2.0
1.3
ND
7.2
4.6
4
7/28/19 5:08
BRF
Ethanol
9.6
8.0
3.6
18
15
6.7
4
7/28/19 5:08
BRF
Ethyl Acetate
ND
0.20
0.15
ND
0.72
0.54
4
7/28/19 5:08
BRF
Ethylbenzene
7.5
0.20
0.12
32
0.87
0.50
4
7/28/19 5:08
BRF
4-Ethyltoluene
4.8
0.20
0.12
24
0.98
0.60
4
7/28/19 5:08
BRF
Heptane
15
0.20
0.12
61
0.82
0.48
4
7/28/19 5:08
BRF
Hexachlorobutadiene
ND
0.20
0.092
ND
2.1
0.98
4
7/28/19 5:08
BRF
Hexane
67
8.0
0.35
240
28
1.2
4
7/28/19 5:08
BRF
2-Hexanone (MBK)
ND
0.20
0.12
ND
0.82
0.48
4
7/28/19 5:08
BRF
Isopropanol
2.1
8.0
0.25
J 5.3
20
0.60
4
7/28/19 5:08
BRF
Methyl tert-Butyl Ether (MTBE)
ND
0.20
0.10
ND
0.72
0.36
4
7/28/19 5:08
BRF
Methylene Chloride
ND
2.0
0.24
ND
6.9
0.84
4
7/28/19 5:08
BRF
4-Methyl-2-pentanone (MIBK)
7.3
0.20
0.096
30
0.82
0.39
4
7/28/19 5:08
BRF
Naphthalene
0.48
0.20
0.15
2.5
1.0
0.80
4
7/28/19 5:08
BRF
Propene
410
120
3.0
700
210
5.1
60
7/29/19 17:54
BRF
Styrene
1.2
0.20
0.12
5.0
0.85
0.53
4
7/28/19 5:08
BRF
1,1,2,2-Tetrachloroethane
ND
0.20
0.089
ND
1.4
0.61
4
7/28/19 5:08
BRF
Page 12 of 56

icon-tes w .
ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: SG-5
Sample ID: 19G1151-04
Sample Matrix: Soil Gas
Sampled: 7/ 17/2019 13:20
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2367
Canister Size: 3 liter
Flow Controller ID: 4328
Sample Type: 30 min
Work Order: 19G1151
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3.5
Receipt Vacuum(in Hg): -5.4
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv ug/m3 Date/Time
Analyte Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Tetrachloroethylene
0.28
0.20
0.11
1.9
1.4
0.75
4
7/28/19 5:08
BRF
Tetrahydrofuran
ND
0.20
0.13
ND
0.59
0.39
4
7/28/19 5:08
BRF
Toluene
65
0.20
0.10
250
0.75
0.39
4
7/28/19 5:08
BRF
1,2,4-Trichlorobenzene
ND
0.20
0.14
ND
1.5
1.0
4
7/28/19 5:08
BRF
1, 1, 1 -Trichloroethane
ND
0.20
0.075
ND
1.1
0.41
4
7/28/19 5:08
BRF
1,1,2-Trichloroethane
ND
0.20
0.082
ND
1.1
0.45
4
7/28/19 5:08
BRF
Trichloroethylene
ND
0.20
0.081
ND
1.1
0.43
4
7/28/19 5:08
BRF
Trichlorofluoromethane (Freon 11)
0.22
0.80
0.12
J 1.2
4.5
0.65
4
7/28/19 5:08
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
0.80
0.12
ND
6.1
0.93
4
7/28/19 5:08
BRF
1,2,4-Trimethylbenzene
5.1
0.20
0.13
25
0.98
0.63
4
7/28/19 5:08
BRF
1,3,5-Trimethylbenzene
2.0
0.20
0.13
9.6
0.98
0.62
4
7/28/19 5:08
BRF
Vinyl Acetate
ND
4.0
0.095
ND
14
0.34
4
7/28/19 5:08
BRF
Vinyl Chloride
ND
0.20
0.13
ND
0.51
0.32
4
7/28/19 5:08
BRF
m&p-Xylene
28
0.40
0.23
120
1.7
1.00
4
7/28/19 5:08
BRF
o-Xylene
8.7
0.20
0.12
38
0.87
0.54
4
7/28/19 5:08
BRF
Surrogates
4-Bromofluorobenzene (1)
4-Bromofluorobenzene (1)
% Recovery
% REC Limits
102 70-130
99.7 70-130
7/28/19 5:08
7/29/ 19 17:54
Page 13 of 56

icon-tes w .
ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: SG-4
Sample ID: 19G1151-05
Sample Matrix: Soil Gas
Sampled: 7/ 17/2019 14:19
Sample Flags: RL-12
Analyte
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location:
Sub Description/Location:
Canister ID: 2359
Canister Size: 3 liter
Flow Controller ID: 4347
Sample Type: 30 min
EPA TO-15
Work Order: 19G1151
Initial Vacuum(in Hg): -30
Final Vacuum(in Hg): -3.5
Receipt Vacuum(in Hg): -5.3
Flow Controller Type: Fixed -Orifice
Flow Controller Calibration
RPD Pre and Post -Sampling:
ppbv ug/m3 Date/Time
Results RL MDL Flag/Qual Results RL MDL Dilution Analyzed Analyst
Acetone
ND
24000
8300
ND
57000
Acetone
ND
24000
8300
ND
57000
Benzene
ND
600
250
ND
1900
Benzene
ND
600
250
ND
1900
Benzyl chloride
ND
600
130
ND
3100
Benzyl chloride
ND
600
130
ND
3100
Bromodichloromethane
ND
600
220
ND
4000
Bromodichloromethane
ND
600
220
ND
4000
Bromoform
ND
600
270
ND
6200
Bromoform
ND
600
270
ND
6200
Bromomethane
ND
6000
410
ND
23000
Bromomethane
ND
6000
410
ND
23000
1,3-Butadiene
ND
600
380
ND
1300
1,3-Butadiene
ND
600
380
ND
1300
2-Butanone (MEK)
ND
24000
940
ND
71000
2-Butanone (MEK)
ND
24000
940
ND
71000
Carbon Disulfide
ND
6000
410
ND
19000
Carbon Disulfide
ND
6000
410
ND
19000
Carbon Tetrachloride
ND
600
200
ND
3800
Carbon Tetrachloride
ND
600
200
ND
3800
Chlorobenzene
ND
600
290
ND
2800
Chlorobenzene
ND
600
290
ND
2800
Chloroethane
ND
600
360
ND
1600
Chloroethane
ND
600
360
ND
1600
Chloroform
ND
600
220
ND
2900
Chloroform
ND
600
220
ND
2900
Chloromethane
ND
1200
410
ND
2500
Chloromethane
ND
1200
410
ND
2500
Cyclohexane
ND
600
430
ND
2100
Cyclohexane
ND
600
430
ND
2100
Dibromochloromethane
ND
600
200
ND
5100
Dibromochloromethane
ND
600
200
ND
5100
1,2-Dibromoethane (EDB)
ND
600
240
ND
4600
1,2-Dibromoethane (EDB)
ND
600
240
ND
4600
1,2-Dichlorobenzene
ND
600
290
ND
3600
1,2-Dichlorobenzene
ND
600
290
ND
3600
1,3-Dichlorobenzene
ND
600
310
ND
3600
1,3-Dichlorobenzene
ND
600
310
ND
3600
1,4-Dichlorobenzene
ND
600
370
ND
3600
1,4-Dichlorobenzene
ND
600
370
ND
3600
Dichlorodifluoromethane (Freon 12)
ND
600
260
ND
3000
Dichlorodifluoromethane (Freon 12)
ND
600
260
ND
3000
1,1-Dichloroethane
ND
600
180
ND
2400
1,1-Dichloroethane
ND
600
180
ND
2400
1,2-Dichloroethane
ND
600
230
ND
2400
1,2-Dichloroethane
ND
600
230
ND
2400
1,1-Dichloroethylene
ND
600
240
ND
2400
20000
12000
8/13/19 22:39
BRF
20000
12000
7/28/19 8:53
BRF
790
12000
8/13/19 22:39
BRF
790
12000
7/28/19 8:53
BRF
680
12000
8/13/19 22:39
BRF
680
12000
7/28/19 8:53
BRF
1500
12000
8/13/19 22:39
BRF
1500
12000
7/28/19 8:53
BRF
2800
12000
8/13/19 22:39
BRF
2800
12000
7/28/19 8:53
BRF
1600
12000
8/13/19 22:39
BRF
1600
12000
7/28/19 8:53
BRF
840
12000
8/13/19 22:39
BRF
840
12000
7/28/19 8:53
BRF
2800
12000
8/13/19 22:39
BRF
2800
12000
7/28/19 8:53
BRF
1300
12000
8/13/19 22:39
BRF
1300
12000
7/28/19 8:53
BRF
1200
12000
8/13/19 22:39
BRF
1200
12000
7/28/19 8:53
BRF
1400
12000
8/13/19 22:39
BRF
1400
12000
7/28/19 8:53
BRF
960
12000
8/13/19 22:39
BRF
960
12000
7/28/19 8:53
BRF
1100
12000
8/13/19 22:39
BRF
1100
12000
7/28/19 8:53
BRF
840
12000
8/13/19 22:39
BRF
840
12000
7/28/19 8:53
BRF
1500
12000
8/13/19 22:39
BRF
1500
12000
7/28/19 8:53
BRF
1700
12000
8/13/19 22:39
BRF
1700
12000
7/28/19 8:53
BRF
1800
12000
8/13/19 22:39
BRF
1800
12000
7/28/19 8:53
BRF
1700
12000
8/13/19 22:39
BRF
1700
12000
7/28/19 8:53
BRF
1900
12000
8/13/19 22:39
BRF
1900
12000
7/28/19 8:53
BRF
2200
12000
8/13/19 22:39
BRF
2200
12000
7/28/19 8:53
BRF
1300
12000
8/13/19 22:39
BRF
1300
12000
7/28/19 8:53
BRF
740
12000
7/28/19 8:53
BRF
740
12000
8/13/19 22:39
BRF
930
12000
8/13/19 22:39
BRF
930
12000
7/28/19 8:53
BRF
970
12000
7/28/19 8:53
BRF
Page 14 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -30
Field Sample #: SG-4
Canister ID: 2359
Final Vacuum(in Hg): -3.5
Sample ID: 19G1151-05
Canister Size: 3 liter
Receipt Vacuum(in Hg): -5.3
Sample Matrix: Soil Gas
Flow Controller ID: 4347
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 14:19
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Sample Flags: RL-12
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
1,1-Dichloroethylene
ND
600
240
ND
2400
970
12000
8/13/19 22:39
BRF
cis-1,2-Dichloroethylene
ND
600
240
ND
2400
970
12000
8/13/19 22:39
BRF
cis-1,2-Dichloroethylene
ND
600
240
ND
2400
970
12000
7/28/19 8:53
BRF
trans-1,2-Dichloroethylene
ND
600
240
ND
2400
970
12000
8/13/19 22:39
BRF
trans-1,2-Dichloroethylene
ND
600
240
ND
2400
970
12000
7/28/19 8:53
BRF
1,2-Dichloropropane
ND
600
210
ND
2800
980
12000
8/13/19 22:39
BRF
1,2-Dichloropropane
ND
600
210
ND
2800
980
12000
7/28/19 8:53
BRF
cis- 1,3 -Dichloropropene
ND
600
210
ND
2700
950
12000
8/13/19 22:39
BRF
cis- 1,3 -Dichloropropene
ND
600
210
ND
2700
950
12000
7/28/19 8:53
BRF
trans- 1, 3 -Dichloropropene
ND
600
220
ND
2700
990
12000
8/13/19 22:39
BRF
trans- 1, 3 -Dichloropropene
ND
600
220
ND
2700
990
12000
7/28/19 8:53
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
600
300
ND
4200
2100
12000
8/13/19 22:39
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
600
300
ND
4200
2100
12000
7/28/19 8:53
BRF
1,4-Dioxane
ND
6000
3900
ND
22000
14000
12000
8/13/19 22:39
BRF
1,4-Dioxane
ND
6000
3900
ND
22000
14000
12000
7/28/19 8:53
BRF
Ethanol
ND
24000
11000
V-05, Z-01 ND
45000
20000
12000
8/13/19 22:39
BRF
Ethanol
ND
24000
11000
ND
45000
20000
12000
7/28/19 8:53
BRF
Ethyl Acetate
ND
600
450
ND
2200
1600
12000
8/13/19 22:39
BRF
Ethyl Acetate
ND
600
450
ND
2200
1600
12000
7/28/19 8:53
BRF
Ethylbenzene
ND
600
350
ND
2600
1500
12000
8/13/19 22:39
BRF
Ethylbenzene
ND
600
350
ND
2600
1500
12000
7/28/19 8:53
BRF
4-Ethyltoluene
ND
600
370
ND
2900
1800
12000
8/13/19 22:39
BRF
4-Ethyltoluene
ND
600
370
ND
2900
1800
12000
7/28/19 8:53
BRF
Heptane
36000
600
350
150000
2500
1400
12000
8/13/19 22:39
BRF
Heptane
31000
600
350
130000
2500
1400
12000
7/28/19 8:53
BRF
Hexachlorobutadiene
ND
600
280
ND
6400
2900
12000
8/13/19 22:39
BRF
Hexachlorobutadiene
ND
600
280
ND
6400
2900
12000
7/28/19 8:53
BRF
Hexane
52000
24000
1100
180000
85000
3700
12000
8/13/19 22:39
BRF
Hexane
34000
24000
1100
120000
85000
3700
12000
7/28/19 8:53
BRF
2-Hexanone (MBK)
ND
600
360
ND
2500
1500
12000
8/13/19 22:39
BRF
2-Hexanone (MBK)
ND
600
360
ND
2500
1500
12000
7/28/19 8:53
BRF
Isopropanol
ND
24000
740
ND
59000
1800
12000
8/13/19 22:39
BRF
Isopropanol
ND
24000
740
ND
59000
1800
12000
7/28/19 8:53
BRF
Methyl tert-Butyl Ether (MTBE)
ND
600
300
ND
2200
1100
12000
8/13/19 22:39
BRF
Methyl tert-Butyl Ether (MTBE)
ND
600
300
ND
2200
1100
12000
7/28/19 8:53
BRF
Methylene Chloride
ND
6000
730
ND
21000
2500
12000
8/13/19 22:39
BRF
Methylene Chloride
ND
6000
730
ND
21000
2500
12000
7/28/19 8:53
BRF
4-Methyl-2-pentanone (MIBK)
ND
600
290
ND
2500
1200
12000
8/13/19 22:39
BRF
4-Methyl-2-pentanone (MIBK)
ND
600
290
ND
2500
1200
12000
7/28/19 8:53
BRF
Naphthalene
ND
600
460
ND
3100
2400
12000
8/13/19 22:39
BRF
Naphthalene
ND
600
460
ND
3100
2400
12000
7/28/19 8:53
BRF
Propene
ND
24000
590
ND
41000
1000
12000
8/13/19 22:39
BRF
Propene
ND
24000
590
ND
41000
1000
12000
7/28/19 8:53
BRF
Styrene
ND
600
370
ND
2600
1600
12000
8/13/19 22:39
BRF
Styrene
ND
600
370
ND
2600
1600
12000
7/28/19 8:53
BRF
1,1,2,2-Tetrachloroethane
ND
600
270
ND
4100
1800
12000
8/13/19 22:39
BRF
1,1,2,2-Tetrachloroethane
ND
600
270
ND
4100
1800
12000
7/28/19 8:53
BRF
Page 15 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -30
Field Sample #: SG-4
Canister ID: 2359
Final Vacuum(in Hg): -3.5
Sample ID: 19G1151-05
Canister Size: 3 liter
Receipt Vacuum(in Hg): -5.3
Sample Matrix: Soil Gas
Flow Controller ID: 4347
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 14:19
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
Sample Flags: RL-12
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual Results
RL
MDL
Dilution
Analyzed
Analyst
Tetrachloroethylene
ND
600
330
ND
4100
2300
12000
8/13/19 22:39
BRF
Tetrachloroethylene
ND
600
330
ND
4100
2300
12000
7/28/19 8:53
BRF
Tetrahydroforan
ND
600
400
ND
1800
1200
12000
8/13/19 22:39
BRF
Tetrahydroforan
ND
600
400
ND
1800
1200
12000
7/28/19 8:53
BRF
Toluene
ND
600
310
ND
2300
1200
12000
8/13/19 22:39
BRF
Toluene
ND
600
310
ND
2300
1200
12000
7/28/19 8:53
BRF
1,2,4-Trichlorobenzene
ND
600
410
ND
4500
3100
12000
8/13/19 22:39
BRF
1,2,4-Trichlorobenzene
ND
600
410
ND
4500
3100
12000
7/28/19 8:53
BRF
1, 1, 1 -Trichloroethane
ND
600
220
ND
3300
1200
12000
8/13/19 22:39
BRF
1, 1, 1 -Trichloroethane
ND
600
220
ND
3300
1200
12000
7/28/19 8:53
BRF
1,1,2-Trichloroethane
ND
600
250
ND
3300
1300
12000
8/13/19 22:39
BRF
1,1,2-Trichloroethane
ND
600
250
ND
3300
1300
12000
7/28/19 8:53
BRF
Trichloroethylene
ND
600
240
ND
3200
1300
12000
8/13/19 22:39
BRF
Trichloroethylene
ND
600
240
ND
3200
1300
12000
7/28/19 8:53
BRF
Trichlorofluoromethane (Freon 11)
ND
2400
350
ND
13000
2000
12000
8/13/19 22:39
BRF
Trichlorofluoromethane (Freon 11)
ND
2400
350
ND
13000
2000
12000
7/28/19 8:53
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
2400
360
ND
18000
2800
12000
8/13/19 22:39
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
2400
360
ND
18000
2800
12000
7/28/19 8:53
BRF
1,2,4-Trimethylbenzene
ND
600
380
ND
2900
1900
12000
8/13/19 22:39
BRF
1,2,4-Trimethylbenzene
ND
600
380
ND
2900
1900
12000
7/28/19 8:53
BRF
1,3,5-Trimethylbenzene
ND
600
380
ND
2900
1800
12000
8/13/19 22:39
BRF
1,3,5-Trimethylbenzene
ND
600
380
ND
2900
1800
12000
7/28/19 8:53
BRF
Vinyl Acetate
ND
12000
290
ND
42000
1000
12000
8/13/19 22:39
BRF
Vinyl Acetate
ND
12000
290
ND
42000
1000
12000
7/28/19 8:53
BRF
Vinyl Chloride
ND
600
380
ND
1500
970
12000
7/28/19 8:53
BRF
Vinyl Chloride
ND
600
380
ND
1500
970
12000
8/13/19 22:39
BRF
m&p-Xylene
ND
1200
690
ND
5200
3000
12000
8/13/19 22:39
BRF
m&p-Xylene
ND
1200
690
ND
5200
3000
12000
7/28/19 8:53
BRF
o-Xylene
ND
600
370
ND
2600
1600
12000
8/13/19 22:39
BRF
o-Xylene
ND
600
370
ND
2600
1600
12000
7/28/19 8:53
BRF
Surrogates
% Recovery
% REC Limits
4-Bromofluorobenzene(1)
104
70-130
8/13/19 22:39
4-Bromofluorobenzene(1)
103
70-130
7/28/19 8:53
Page 16 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: SG-D
Canister ID: 2381
Final Vacuum(in Hg): -4
Sample ID: 19G1151-06
Canister Size: 3 liter
Receipt Vacuum(in Hg): -5.9
Sample Matrix: Soil Gas
Flow Controller ID: 4340
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 14:45
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
Sample Flags: RL-11
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual Results
ug/m3
RI
MDL
Dilution
Date/Time
Analyzed
Analyst
Acetone
ND
1200
420
ND
2900
990
600
7/28/19 9:22
BRF
Benzene
ND
30
12
ND
96
39
600
7/28/19 9:22
BRF
Benzyl chloride
ND
30
6.6
ND
160
34
600
7/28/19 9:22
BRF
Bromodichloromethane
ND
30
11
ND
200
74
600
7/28/19 9:22
BRF
Bromoform
ND
30
14
ND
310
140
600
7/28/19 9:22
BRF
Bromomethane
ND
300
21
ND
1200
80
600
7/28/19 9:22
BRF
1,3-Butadiene
ND
30
19
ND
66
42
600
7/28/19 9:22
BRF
2-Butanone (MEK)
ND
1200
47
ND
3500
140
600
7/28/19 9:22
BRF
Carbon Disulfide
ND
300
21
ND
930
64
600
7/28/19 9:22
BRF
Carbon Tetrachloride
ND
30
9.8
ND
190
62
600
7/28/19 9:22
BRF
Chlorobenzene
ND
30
15
ND
140
68
600
7/28/19 9:22
BRF
Chloroethane
ND
30
18
ND
79
48
600
7/28/19 9:22
BRF
Chloroform
ND
30
11
ND
150
54
600
7/28/19 9:22
BRF
Chloromethane
ND
60
20
ND
120
42
600
7/28/19 9:22
BRF
Cyclohexane
ND
30
21
ND
100
73
600
7/28/19 9:22
BRF
Dibromochloromethane
ND
30
10
ND
260
85
600
7/28/19 9:22
BRF
1,2-Dibromoethane (EDB)
ND
30
12
ND
230
90
600
7/28/19 9:22
BRF
1,2-Dichlorobenzene
ND
30
14
ND
180
87
600
7/28/19 9:22
BRF
1,3-Dichlorobenzene
ND
30
15
ND
180
93
600
7/28/19 9:22
BRF
1,4-Dichlorobenzene
ND
30
18
ND
180
110
600
7/28/19 9:22
BRF
Dichlorodifluoromethane (Freon 12)
ND
30
13
ND
150
64
600
7/28/19 9:22
BRF
1,1-Dichloroethane
ND
30
9.1
ND
120
37
600
7/28/19 9:22
BRF
1,2-Dichloroethane
ND
30
11
ND
120
46
600
7/28/19 9:22
BRF
1,1-Dichloroethylene
ND
30
12
ND
120
48
600
7/28/19 9:22
BRF
cis-1,2-Dichloroethylene
ND
30
12
ND
120
49
600
7/28/19 9:22
BRF
trans-1,2-Dichloroethylene
ND
30
12
ND
120
48
600
7/28/19 9:22
BRF
1,2-Dichloropropane
ND
30
11
ND
140
49
600
7/28/19 9:22
BRF
cis- 1,3 -Dichloropropene
ND
30
10
ND
140
48
600
7/28/19 9:22
BRF
trans- 1, 3 -Dichloropropene
ND
30
11
ND
140
50
600
7/28/19 9:22
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
ND
30
15
ND
210
100
600
7/28/19 9:22
BRF
1,4-Dioxane
ND
300
190
ND
1100
700
600
7/28/19 9:22
BRF
Ethanol
ND
1200
540
ND
2300
1000
600
7/28/19 9:22
BRF
Ethyl Acetate
ND
30
22
ND
110
81
600
7/28/19 9:22
BRF
Ethylbenzene
ND
30
17
ND
130
75
600
7/28/19 9:22
BRF
4-Ethyltoluene
ND
30
18
ND
150
90
600
7/28/19 9:22
BRF
Heptane
14000
30
18
59000
120
72
600
7/28/19 9:22
BRF
Hexachlorobutadiene
ND
30
14
ND
320
150
600
7/28/19 9:22
BRF
Hexane
32000
24000
1100
110000
85000
3700
12000
7/28/19 9:49
BRF
2-Hexanone (MBK)
ND
30
18
ND
120
73
600
7/28/19 9:22
BRF
Isopropanol
ND
1200
37
ND
2900
90
600
7/28/19 9:22
BRF
Methyl tert-Butyl Ether (MTBE)
ND
30
15
ND
110
54
600
7/28/19 9:22
BRF
Methylene Chloride
ND
300
36
ND
1000
130
600
7/28/19 9:22
BRF
4-Methyl-2-pentanone (MIBK)
ND
30
14
ND
120
59
600
7/28/19 9:22
BRF
Naphthalene
ND
30
23
ND
160
120
600
7/28/19 9:22
BRF
Propene
ND
1200
30
ND
2100
51
600
7/28/19 9:22
BRF
Styrene
ND
30
19
ND
130
79
600
7/28/19 9:22
BRF
1,1,2,2-Tetrachloroethane
ND
30
13
ND
210
91
600
7/28/19 9:22
BRF
Page 17 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: SG-D
Canister ID: 2381
Final Vacuum(in Hg): -4
Sample ID: 19G1151-06
Canister Size: 3 liter
Receipt Vacuum(in Hg): -5.9
Sample Matrix: Soil Gas
Flow Controller ID: 4340
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 14:45
Sample Type: 30 min
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
Sample Flags: RL-11
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual Results
RI
MDL
Dilution
Analyzed
Analyst
Tetrachloroethylene
ND
30
17
ND
200
110
600
7/28/19 9:22
BRF
Tetrahydrofuran
ND
30
20
ND
88
59
600
7/28/19 9:22
BRF
Toluene
ND
30
15
ND
110
58
600
7/28/19 9:22
BRF
1,2,4-Trichlorobenzene
ND
30
21
ND
220
150
600
7/28/19 9:22
BRF
1, 1, 1 -Trichloroethane
ND
30
11
ND
160
61
600
7/28/19 9:22
BRF
1,1,2-Trichloroethane
ND
30
12
ND
160
67
600
7/28/19 9:22
BRF
Trichloroethylene
ND
30
12
ND
160
65
600
7/28/19 9:22
BRF
Trichlorofluoromethane (Freon 11)
ND
120
17
ND
670
98
600
7/28/19 9:22
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
ND
120
18
ND
920
140
600
7/28/19 9:22
BRF
1,2,4-Trimethylbenzene
ND
30
19
ND
150
94
600
7/28/19 9:22
BRF
1,3,5-Trimethylbenzene
ND
30
19
ND
150
92
600
7/28/19 9:22
BRF
Vinyl Acetate
ND
600
14
ND
2100
50
600
7/28/19 9:22
BRF
Vinyl Chloride
ND
30
19
ND
77
48
600
7/28/19 9:22
BRF
m&p-Xylene
ND
60
34
ND
260
150
600
7/28/19 9:22
BRF
o-Xylene
ND
30
19
ND
130
81
600
7/28/19 9:22
BRF
Surrogates
% Recovery
% REC Limits
4-Bromofluorobenzene(1)
109
70-130
7/28/19 9:22
4-Bromofluorobenzene(1)
102
70-130
7/28/19 9:49
Page 18 of 56

icon-tes w .
ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: CS-1
Sample ID: 19G1151-07
Sample Matrix: Indoor air
Sampled: 7/17/2019 16:10
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location: Work Order: 19G1151
Sub Description/Location: Initial Vacuum(in Hg): -29
Canister ID: 2064 Final Vacuum(in Hg): -6
Canister Size: 6 liter Receipt Vacuum(in Hg): -6.1
Flow Controller ID: 3236 Flow Controller Type: Fixed -Orifice
Sample Type: 8 hr Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
31
1.4
0.49
73
3.3
1.2
0.702
7/23/19 18:13
BRF
Benzene
0.096
0.035
0.014
0.31
0.11
0.046
0.702
7/23/19 18:13
BRF
Benzyl chloride
ND
0.035
0.0077
ND
0.18
0.040
0.702
7/23/19 18:13
BRF
Bromodichloromethane
ND
0.035
0.013
ND
0.24
0.087
0.702
7/23/19 18:13
BRF
Bromoform
ND
0.035
0.016
ND
0.36
0.16
0.702
7/23/19 18:13
BRF
Bromomethane
ND
0.035
0.024
ND
0.14
0.094
0.702
7/23/19 18:13
BRF
1,3-Butadiene
ND
0.035
0.022
ND
0.078
0.049
0.702
7/23/19 18:13
BRF
2-Butanone (MEK)
1.9
1.4
0.055
5.5
4.1
0.16
0.702
7/23/19 18:13
BRF
Carbon Disulfide
ND
0.35
0.024
L-03
ND
1.1
0.075
0.702
7/23/19 18:13
BRF
Carbon Tetrachloride
0.068
0.035
0.011
0.43
0.22
0.072
0.702
7/23/19 18:13
BRF
Chlorobenzene
ND
0.035
0.017
ND
0.16
0.079
0.702
7/23/19 18:13
BRF
Chloroethane
ND
0.035
0.021
ND
0.093
0.056
0.702
7/23/19 18:13
BRF
Chloroform
0.17
0.035
0.013
0.83
0.17
0.064
0.702
7/23/19 18:13
BRF
Chloromethane
0.73
0.070
0.024
1.5
0.14
0.049
0.702
7/23/19 18:13
BRF
Cyclohexane
ND
0.035
0.025
ND
0.12
0.086
0.702
7/23/19 18:13
BRF
Dibromochloromethane
ND
0.035
0.012
ND
0.30
0.099
0.702
7/23/19 18:13
BRF
1,2-Dibromoethane (EDB)
ND
0.035
0.014
ND
0.27
0.11
0.702
7/23/19 18:13
BRF
1,2-Dichlorobenzene
ND
0.035
0.017
ND
0.21
0.10
0.702
7/23/19 18:13
BRF
1,3-Dichlorobenzene
ND
0.035
0.018
ND
0.21
0.11
0.702
7/23/19 18:13
BRF
1,4-Dichlorobenzene
ND
0.035
0.021
ND
0.21
0.13
0.702
7/23/19 18:13
BRF
Dichlorodifluoromethane (Freon 12)
0.39
0.035
0.015
1.9
0.17
0.075
0.702
7/23/19 18:13
BRF
1,1-Dichloroethane
ND
0.035
0.011
L-03
ND
0.14
0.043
0.702
7/23/19 18:13
BRF
1,2-Dichloroethane
0.84
0.035
0.013
3.4
0.14
0.054
0.702
7/23/19 18:13
BRF
1,1-Dichloroethylene
ND
0.035
0.014
L-03
ND
0.14
0.056
0.702
7/23/19 18:13
BRF
cis-1,2-Dichloroethylene
ND
0.035
0.014
V-05
ND
0.14
0.057
0.702
7/23/19 18:13
BRF
trans-1,2-Dichloroethylene
ND
0.035
0.014
ND
0.14
0.056
0.702
7/23/19 18:13
BRF
1,2-Dichloropropane
ND
0.035
0.012
ND
0.16
0.057
0.702
7/23/19 18:13
BRF
cis- 1,3 -Dichloropropene
ND
0.035
0.012
ND
0.16
0.056
0.702
7/23/19 18:13
BRF
trans- 1, 3 -Dichloropropene
ND
0.035
0.013
ND
0.16
0.058
0.702
7/23/19 18:13
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114) ND
0.035
0.017
ND
0.25
0.12
0.702
7/23/19 18:13
BRF
1,4-Dioxane
ND
0.35
0.23
ND
1.3
0.82
0.702
7/23/19 18:13
BRF
Ethanol
1600
80
36
V-05
3000
150
67
40
7/24/19 8:56
BRF
Ethyl Acetate
0.75
0.035
0.026
2.7
0.13
0.094
0.702
7/23/19 18:13
BRF
Ethylbenzene
0.25
0.035
0.020
1.1
0.15
0.088
0.702
7/23/19 18:13
BRF
4-Ethyltoluene
ND
0.035
0.021
ND
0.17
0.11
0.702
7/23/19 18:13
BRF
Heptane
0.24
0.035
0.021
0.99
0.14
0.085
0.702
7/23/19 18:13
BRF
Hexachlorobutadiene
ND
0.035
0.016
ND
0.37
0.17
0.702
7/23/19 18:13
BRF
Hexane
ND
1.4
0.062
ND
4.9
0.22
0.702
7/23/19 18:13
BRF
2-Hexanone (MBK)
ND
0.035
0.021
ND
0.14
0.085
0.702
7/23/19 18:13
BRF
Isopropanol
170
80
2.5
420
200
6.0
40
7/24/19 8:56
BRF
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.018
L-03
ND
0.13
0.063
0.702
7/23/19 18:13
BRF
Methylene Chloride
0.14
0.35
0.043
J
0.49
1.2
0.15
0.702
7/23/19 18:13
BRF
4-Methyl-2-pentanone (MIBK)
0.31
0.035
0.017
1.3
0.14
0.069
0.702
7/23/19 18:13
BRF
Naphthalene
0.23
0.035
0.027
V-35
1.2
0.18
0.14
0.702
7/23/19 18:13
BRF
Propene
ND
1.4
0.035
ND
2.4
0.060
0.702
7/23/19 18:13
BRF
Styrene
0.26
0.035
0.022
1.1
0.15
0.092
0.702
7/23/19 18:13
BRF
1,1,2,2-Tetrachloroethane
ND
0.035
0.016
ND
0.24
0.11
0.702
7/23/19 18:13
BRF
Page 19 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: CS-1
Canister ID: 2064
Final Vacuum(in Hg): -6
Sample ID: 19G1151-07
Canister Size: 6 liter
Receipt Vacuum(in Hg): -6.1
Sample Matrix: Indoor air
Flow Controller ID: 3236
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 16:10
Sample Type: 8 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual Results
RL
MDL
Dilution
Analyzed
Analyst
Tetrachloroethylene
0.027
0.035
0.020
J 0.19
0.24
0.13
0.702
7/23/19 18:13
BRF
Tetrahydrofuran
ND
0.14
0.023
ND
0.41
0.069
0.702
7/23/19 18:13
BRF
Toluene
0.65
0.035
0.018
2.5
0.13
0.068
0.702
7/23/19 18:13
BRF
1,2,4-Trichlorobenzene
ND
0.035
0.024
ND
0.26
0.18
0.702
7/23/19 18:13
BRF
1, 1, 1 -Trichloroethane
ND
0.035
0.013
ND
0.19
0.072
0.702
7/23/19 18:13
BRF
1,1,2-Trichloroethane
ND
0.035
0.014
ND
0.19
0.079
0.702
7/23/19 18:13
BRF
Trichloroethylene
0.027
0.035
0.014
J 0.15
0.19
0.076
0.702
7/23/19 18:13
BRF
Trichlorofluoromethane (Freon 11)
0.18
0.14
0.020
L-03 1.0
0.79
0.11
0.702
7/23/19 18:13
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.053
0.14
0.021
J, L-03 0.41
1.1
0.16
0.702
7/23/19 18:13
BRF
1,2,4-Trimethylbenzene
ND
0.035
0.022
ND
0.17
0.11
0.702
7/23/19 18:13
BRF
1,3,5-Trimethylbenzene
0.044
0.035
0.022
0.21
0.17
0.11
0.702
7/23/19 18:13
BRF
Vinyl Acetate
ND
0.70
0.017
ND
2.5
0.059
0.702
7/23/19 18:13
BRF
Vinyl Chloride
ND
0.035
0.022
ND
0.090
0.057
0.702
7/23/19 18:13
BRF
m&p-Xylene
0.79
0.070
0.040
3.4
0.30
0.18
0.702
7/23/19 18:13
BRF
o-Xylene
0.28
0.035
0.022
1.2
0.15
0.095
0.702
7/23/19 18:13
BRF
Surrogates
% Recovery
% REC Limits
4-Bromofluorobenzene (1)
102
70-130
7/23/19 18:13
4-Bromofluorobenzene (1)
98.8
70-130
7/24/19 8:56
Page 20 of 56

icon-tes w .
ANALYTICAL LABORATORY
Project Location: Durham, NC
Date Received: 7/18/2019
Field Sample #: OA-1
Sample ID: 19G1151-08
Sample Matrix: Ambient Air
Sampled: 7/17/2019 16:12
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Sample Description/Location: Work Order: 19G1151
Sub Description/Location: Initial Vacuum(in Hg): -29
Canister ID: 1249 Final Vacuum(in Hg): -7
Canister Size: 6 liter Receipt Vacuum(in Hg): -8.3
Flow Controller ID: 3244 Flow Controller Type: Fixed -Orifice
Sample Type: 8 hr Flow Controller Calibration
RPD Pre and Post -Sampling:
EPA TO-15
ppbv
ug/m3
Date/Time
Analyte
Results
RL
MDL
Flag/Qual
Results
RL
MDL
Dilution
Analyzed
Analyst
Acetone
5.2
1.4
0.49
12
3.3
1.2
0.702
7/23/19 19:14
BRF
Benzene
0.090
0.035
0.014
0.29
0.11
0.046
0.702
7/23/19 19:14
BRF
Benzyl chloride
ND
0.035
0.0077
ND
0.18
0.040
0.702
7/23/19 19:14
BRF
Bromodichloromethane
ND
0.035
0.013
ND
0.24
0.087
0.702
7/23/19 19:14
BRF
Bromoform
ND
0.035
0.016
ND
0.36
0.16
0.702
7/23/19 19:14
BRF
Bromomethane
ND
0.035
0.024
ND
0.14
0.094
0.702
7/23/19 19:14
BRF
1,3-Butadiene
ND
0.035
0.022
ND
0.078
0.049
0.702
7/23/19 19:14
BRF
2-Butanone (MEK)
0.49
1.4
0.055
J
1.4
4.1
0.16
0.702
7/23/19 19:14
BRF
Carbon Disulfide
ND
0.35
0.024
L-03
ND
1.1
0.075
0.702
7/23/19 19:14
BRF
Carbon Tetrachloride
0.091
0.035
0.011
0.57
0.22
0.072
0.702
7/23/19 19:14
BRF
Chlorobenzene
ND
0.035
0.017
ND
0.16
0.079
0.702
7/23/19 19:14
BRF
Chloroethane
ND
0.035
0.021
ND
0.093
0.056
0.702
7/23/19 19:14
BRF
Chloroform
0.041
0.035
0.013
0.20
0.17
0.064
0.702
7/23/19 19:14
BRF
Chloromethane
0.70
0.070
0.024
1.5
0.14
0.049
0.702
7/23/19 19:14
BRF
Cyclohexane
ND
0.035
0.025
ND
0.12
0.086
0.702
7/23/19 19:14
BRF
Dibromochloromethane
ND
0.035
0.012
ND
0.30
0.099
0.702
7/23/19 19:14
BRF
1,2-Dibromoethane (EDB)
ND
0.035
0.014
ND
0.27
0.11
0.702
7/23/19 19:14
BRF
1,2-Dichlorobenzene
ND
0.035
0.017
ND
0.21
0.10
0.702
7/23/19 19:14
BRF
1,3-Dichlorobenzene
ND
0.035
0.018
ND
0.21
0.11
0.702
7/23/19 19:14
BRF
1,4-Dichlorobenzene
ND
0.035
0.021
ND
0.21
0.13
0.702
7/23/19 19:14
BRF
Dichlorodifluoromethane (Freon 12)
0.46
0.035
0.015
2.3
0.17
0.075
0.702
7/23/19 19:14
BRF
1,1-Dichloroethane
ND
0.035
0.011
L-03
ND
0.14
0.043
0.702
7/23/19 19:14
BRF
1,2-Dichloroethane
ND
0.035
0.013
ND
0.14
0.054
0.702
7/23/19 19:14
BRF
1,1-Dichloroethylene
ND
0.035
0.014
L-03
ND
0.14
0.056
0.702
7/23/19 19:14
BRF
cis-1,2-Dichloroethylene
ND
0.035
0.014
V-05
ND
0.14
0.057
0.702
7/23/19 19:14
BRF
trans-1,2-Dichloroethylene
ND
0.035
0.014
ND
0.14
0.056
0.702
7/23/19 19:14
BRF
1,2-Dichloropropane
ND
0.035
0.012
ND
0.16
0.057
0.702
7/23/19 19:14
BRF
cis- 1,3 -Dichloropropene
ND
0.035
0.012
ND
0.16
0.056
0.702
7/23/19 19:14
BRF
trans- 1, 3 -Dichloropropene
ND
0.035
0.013
ND
0.16
0.058
0.702
7/23/19 19:14
BRF
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114) ND
0.035
0.017
ND
0.25
0.12
0.702
7/23/19 19:14
BRF
1,4-Dioxane
ND
0.35
0.23
ND
1.3
0.82
0.702
7/23/19 19:14
BRF
Ethanol
6.4
1.4
0.63
V-05
12
2.6
1.2
0.702
7/23/19 19:14
BRF
Ethyl Acetate
0.68
0.035
0.026
2.4
0.13
0.094
0.702
7/23/19 19:14
BRF
Ethylbenzene
0.024
0.035
0.020
J
0.10
0.15
0.088
0.702
7/23/19 19:14
BRF
4-Ethyltoluene
ND
0.035
0.021
ND
0.17
0.11
0.702
7/23/19 19:14
BRF
Heptane
0.060
0.035
0.021
0.25
0.14
0.085
0.702
7/23/19 19:14
BRF
Hexachlorobutadiene
ND
0.035
0.016
ND
0.37
0.17
0.702
7/23/19 19:14
BRF
Hexane
ND
1.4
0.062
ND
4.9
0.22
0.702
7/23/19 19:14
BRF
2-Hexanone (MBK)
ND
0.035
0.021
ND
0.14
0.085
0.702
7/23/19 19:14
BRF
Isopropanol
23
1.4
0.043
55
3.4
0.11
0.702
7/23/19 19:14
BRF
Methyl tert-Butyl Ether (MTBE)
ND
0.035
0.018
L-03
ND
0.13
0.063
0.702
7/23/19 19:14
BRF
Methylene Chloride
0.52
0.35
0.043
1.8
1.2
0.15
0.702
7/23/19 19:14
BRF
4-Methyl-2-pentanone (MIBK)
ND
0.035
0.017
ND
0.14
0.069
0.702
7/23/19 19:14
BRF
Naphthalene
0.033
0.035
0.027
J
0.17
0.18
0.14
0.702
7/23/19 19:14
BRF
Propene
ND
1.4
0.035
ND
2.4
0.060
0.702
7/23/19 19:14
BRF
Styrene
0.034
0.035
0.022
J
0.15
0.15
0.092
0.702
7/23/19 19:14
BRF
1,1,2,2-Tetrachloroethane
ND
0.035
0.016
ND
0.24
0.11
0.702
7/23/19 19:14
BRF
Page 21 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ANALYTICAL RESULTS
Project Location: Durham, NC
Sample Description/Location:
Work Order: 19G1151
Date Received: 7/18/2019
Sub Description/Location:
Initial Vacuum(in Hg): -29
Field Sample #: OA-1
Canister ID: 1249
Final Vacuum(in Hg): -7
Sample ID: 19G1151-08
Canister Size: 6 liter
Receipt Vacuum(in Hg): -8.3
Sample Matrix: Ambient Air
Flow Controller ID: 3244
Flow Controller Type: Fixed -Orifice
Sampled: 7/17/2019 16:12
Sample Type: 8 hr
Flow Controller Calibration
RPD Pre and Post -Sampling:
Analyte
Results
ppbv
RL
EPA TO-15
MDL
Flag/Qual
Results
ug/m3
RL
MDL
Dilution
Date/Time
Analyzed
Analyst
Tetrachloroethylene
ND
0.035
0.020
ND
0.24
0.13
0.702
7/23/19 19:14
BRF
Tetrahydrofuran
ND
0.14
0.023
ND
0.41
0.069
0.702
7/23/19 19:14
BRF
Toluene
0.19
0.035
0.018
0.72
0.13
0.068
0.702
7/23/19 19:14
BRF
1,2,4-Trichlorobenzene
ND
0.035
0.024
ND
0.26
0.18
0.702
7/23/19 19:14
BRF
1, 1, 1 -Trichloroethane
ND
0.035
0.013
ND
0.19
0.072
0.702
7/23/19 19:14
BRF
1,1,2-Trichloroethane
ND
0.035
0.014
ND
0.19
0.079
0.702
7/23/19 19:14
BRF
Trichloroethylene
0.019
0.035
0.014
J
0.10
0.19
0.076
0.702
7/23/19 19:14
BRF
Trichlorofluoromethane (Freon 11)
0.21
0.14
0.020
L-03
1.2
0.79
0.11
0.702
7/23/19 19:14
BRF
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 113)
0.065
0.14
0.021
J, L-03
0.49
1.1
0.16
0.702
7/23/19 19:14
BRF
1,2,4-Trimethylbenzene
0.026
0.035
0.022
J
0.13
0.17
0.11
0.702
7/23/19 19:14
BRF
1,3,5-Trimethylbenzene
ND
0.035
0.022
ND
0.17
0.11
0.702
7/23/19 19:14
BRF
Vinyl Acetate
ND
0.70
0.017
ND
2.5
0.059
0.702
7/23/19 19:14
BRF
Vinyl Chloride
ND
0.035
0.022
ND
0.090
0.057
0.702
7/23/19 19:14
BRF
m&p-Xylene
0.067
0.070
0.040
J
0.29
0.30
0.18
0.702
7/23/19 19:14
BRF
o-Xylene
0.028
0.035
0.022
J
0.12
0.15
0.095
0.702
7/23/19 19:14
BRF
Surrogates % Recovery % REC Limits
4-Bromofluorobenzene (1) 98.9 70-130 7/23/19 19:14
Page 22 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Sample Extraction
Data
Prep Method: TO-15 Prep -EPA TO-15
Pre-Dil
Pre-Dil
Default
Actual
Pressure
Pre
Initial
Final
Injection
Injection
Lab Number [Field ID1
Batch
Dilution
Dilution
mL
mL
mL
mL
Date
19G1151-07 [CS-1]
B236275
1.5
1
N/A
1000
400
855
07/23/19
19G1151-07RE1 [CS-1]
B236275
1.5
1
N/A
1000
400
15
07/23/19
19G1151-08 [OA-1]
B236275
1.5
1
N/A
1000
400
855
07/23/19
Prep Method: TO-15 Prep -EPA TO-15
Pre-Dil
Pre-Dil
Default
Actual
Pressure
Pre
Initial
Final
Injection
Injection
Lab Number [Field ID]
Batch
Dilution
Dilution
mL
mL
mL
mL
Date
19G1151-01 [SG-2]
B236639
1.5
1
N/A
1000
400
150
07/27/19
19G1151-02 [SG-3]
B236639
1.5
1
N/A
1000
400
60
07/27/19
19G1151-03 [SG-1]
B236639
1.5
1
N/A
1000
400
150
07/27/19
19G1151-04 [SG-5]
B236639
1.5
1
N/A
1000
400
150
07/27/19
19G1151-05 [SG-4]
B236639
1.5
200
5
1000
400
10
07/27/19
19G1151-06 [SG-D]
B236639
1.5
200
5
1000
400
200
07/27/19
19G1151-06RE1 [SG-D]
B236639
1.5
200
5
1000
400
10
07/27/19
Prep Method: TO-15 Prep -EPA TO-15
Pre-Dil
Pre-Dil
Default
Actual
Pressure
Pre
Initial
Final
Injection
Injection
Lab Number [Field ID]
Batch
Dilution
Dilution
mL
ml-
mL
mL
Date
19G1151-01RE1 [SG-2]
B236733
1.5
1
N/A
1000
400
10
07/29/19
19G1151-03RE1 [SG-1]
B236733
1.5
1
N/A
1000
400
10
07/29/19
19G1151-04RE1 [SG-5]
B236733
1.5
1
N/A
1000
400
10
07/29/19
Prep Method: TO-15 Prep -EPA TO-15
Pre-Dil
Pre-Dil
Default
Actual
Pressure
Pre
Initial
Final
Injection
Injection
Lab Number [Field ID]
Batch
Dilution
Dilution
mL
mL
mL
mL
Date
19G1151-05RE1 [SG-4]
B238009
1.5
200
5
1000
400
10
08/13/19
Page 23 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
malyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B236275 - TO-15 Prep
Blank (B236275-BLKl)
Prepared & Analyzed: 07/23/19
Acetone
ND
1.4
Benzene
ND
0.035
Benzyl chloride
ND
0.035
Bromodichloromethane
ND
0.035
Bromoform
ND
0.035
Bromomethane
ND
0.035
113-Butadiene
ND
0.035
2-Butanone (MEK)
ND
1.4
Carbon Disulfide
ND
0.35
L-03
Carbon Tetrachloride
ND
0.035
Chlorobenzene
ND
0.035
Chloroethane
ND
0.035
Chloroform
ND
0.035
Chloromethane
ND
0.070
Cyclohexane
ND
0.035
Dibromochloromethane
ND
0.035
1,2-Dibromoethane (EDB)
ND
0.035
1,2-Dichlorobenzene
ND
0.035
1,3-Dichlorobenzene
ND
0.035
114-Dichlorobenzene
ND
0.035
Dichlorodifluoromethane (Freon 12)
ND
0.035
1,1-Dichloroethane
ND
0.035
L-03
1,2-Dichloroethane
ND
0.035
1,1-Dichloroethylene
ND
0.035
L-03
cis-1,2-Dichloroethylene
ND
0.035
V-05
trans-1,2-Dichloroethylene
ND
0.035
1,2-Dichloropropane
ND
0.035
cis- 1,3 -Dichloropropene
ND
0.035
trans- l,3-Dichloropropene
ND
0.035
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
(Freon 114)
114-Dioxane
ND
0.35
Ethanol
ND
1.4
V-05
Ethyl Acetate
ND
0.035
Ethylbenzene
ND
0.035
4-Ethyltoluene
ND
0.035
Heptane
ND
0.035
Hexachlorobutadiene
ND
0.035
Hexane
ND
1.4
2-Hexanone (MBK)
ND
0.035
Isopropanol
ND
1.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
L-03
Methylene Chloride
ND
0.35
4-Methyl-2-pentanone (MIBK)
ND
0.035
Naphthalene
ND
0.035
Propene
ND
1.4
Styrene
ND
0.035
Page 24 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B236275 - TO-15 Prep
Blank (B236275-BLKI)
Prepared & Analyzed: 07/23/19
1,1,2,2-Tetrachloroethane
ND
0.035
Tetrachloroethylene
ND
0.035
Tetrahydrofuran
ND
0.035
Toluene
ND
0.035
1,2,4-Trichlorobenzene
ND
0.035
1, 1, 1 -Trichloroethane
ND
0.035
1,1,2-Trichloroethane
ND
0.035
Trichloroethylene
ND
0.035
Trichlorofluoromethane (Freon 11)
ND
0.14 L-03
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.14 L-03
113)
1,2,4-Trimethylbenzene
ND
0.035
1,3,5-Trimethylbenzene
ND
0.035
Vinyl Acetate
ND
0.70
Vinyl Chloride
ND
0.035
m&p-Xylene
ND
0.070
o-Xylene
ND
0.035
Surrogate: 4-Bromofluorobenzene (1)
LCS (B236275-BS1)
7.62
8.00 95.3
Prepared & Analyzed: 07/23/19
70-130
Acetone
3.75
5.00
74.9
70-130
Benzene
4.05
5.00
81.0
70-130
Benzyl chloride
5.30
5.00
106
70-130
Bromodichloromethane
4.15
5.00
83.0
70-130
Bromoform
4.41
5.00
88.1
70-130
Bromomethane
3.52
5.00
70.4
70-130
1,3-Butadiene
4.29
5.00
85.9
70-130
2-Butanone (MEK)
3.53
5.00
70.5
70-130
Carbon Disulfide
3.38
5.00
67.6 *
70-130
L-03
Carbon Tetrachloride
4.06
5.00
81.2
70-130
Chlorobenzene
4.02
5.00
80.3
70-130
Chloroethane
3.65
5.00
73.1
70-130
Chloroform
3.58
5.00
71.5
70-130
Chloromethane
4.27
5.00
85.4
70-130
Cyclohexane
3.66
5.00
73.3
70-130
Dibromochloromethane
4.38
5.00
87.6
70-130
1,2-Dibromoethane (EDB)
4.41
5.00
88.2
70-130
1,2-Dichlorobenzene
5.24
5.00
105
70-130
1,3-Dichlorobenzene
4.94
5.00
98.7
70-130
1,4-Dichlorobenzene
5.10
5.00
102
70-130
Dichlorodifluoromethane (Freon 12)
3.71
5.00
74.3
70-130
1,1-Dichloroethane
3.25
5.00
65.1 *
70-130
L-03
1,2-Dichloroethane
3.79
5.00
75.7
70-130
1,1-Dichloroethylene
3.36
5.00
67.2 *
70-130
L-03
cis-1,2-Dichloroethylene
3.98
5.00
79.5
70-130
V-05
trans-1,2-Dichloroethylene
3.67
5.00
73.4
70-130
1,2-Dichloropropane
4.26
5.00
85.2
70-130
Page 25 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B236275 - TO-15 Prep
LCS (B236275-BS1)
Prepared & Analyzed: 07/23/19
cis-1,3-Dichloropropene
4.06
5.00
81.3
70-130
trans-1,3-Dichloropropene
4.58
5.00
91.5
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
3.63
5.00
72.6
70-130
(Freon 114)
1,4-Dioxane
4.80
5.00
96.0
70-130
Ethanol
3.66
5.00
73.1
70-130
V-Of
Ethyl Acetate
3.92
5.00
78.3
70-130
Ethylbenzene
4.10
5.00
82.0
70-130
4-Ethyltoluene
4.49
5.00
89.7
70-130
Heptane
4.44
5.00
88.8
70-130
Hexachlorobutadiene
4.51
5.00
90.2
70-130
Hexane
4.15
5.00
83.0
70-130
2-Hexanone (MBK)
5.22
5.00
104
70-130
Isopropanol
3.74
5.00
74.8
70-130
Methyl tert-Butyl Ether (MTBE)
3.20
5.00
64.1 *
70-130
L-03
Methylene Chloride
3.53
5.00
70.6
70-130
4-Methyl-2-pentanone (MIBK)
4.69
5.00
93.7
70-130
Naphthalene
5.86
5.00
117
70-130
V-3'-
Propene
3.59
5.00
71.9
70-130
Styrene
4.38
5.00
87.5
70-130
1,1,2,2-Tetrachloroethane
4.18
5.00
83.5
70-130
Tetrachloroethylene
3.79
5.00
75.9
70-130
Tetrahydrofuran
3.65
5.00
73.0
70-130
Toluene
4.59
5.00
91.8
70-130
1,2,4-Trichlorobenzene
6.04
5.00
121
70-130
V-3E
1, 1, 1 -Trichloroethane
3.53
5.00
70.7
70-130
1,1,2-Trichloroethane
4.42
5.00
88.5
70-130
Trichloroethylene
3.84
5.00
76.7
70-130
Trichlorofluoromethane (Freon 11)
3.33
5.00
66.7 *
70-130
L-03
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
3.16
5.00
63.3 *
70-130
L-03
113)
1,2,4-Trimethylbenzene
4.44
5.00
88.7
70-130
1,3,5-Trimethylbenzene
4.35
5.00
87.0
70-130
Vinyl Acetate
3.83
5.00
76.6
70-130
Vinyl Chloride
4.01
5.00
80.3
70-130
m&p-Xylene
8.52
10.0
85.2
70-130
o-Xylene
4.34
5.00
86.8
70-130
Surrogate: 4-Bromofluorobenzene (1) 8.46 8.00 106 70-130
Page 26 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
malyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B236639 - TO-15 Prep
Blank (B236639-BLK1)
Prepared: 07/27/19 Analyzed: 07/28/19
Acetone
ND
1.4
Benzene
ND
0.035
Benzyl chloride
ND
0.035
Bromodichloromethane
ND
0.035
Bromoform
ND
0.035
Bromomethane
ND
0.035
1,3-Butadiene
ND
0.035
2-Butanone (MEK)
ND
1.4
Carbon Disulfide
ND
0.35
Carbon Tetrachloride
ND
0.035
Chlorobenzene
ND
0.035
Chloroethane
ND
0.035
Chloroform
ND
0.035
Chloromethane
ND
0.070
Cyclohexane
ND
0.035
Dibromochloromethane
ND
0.035
1,2-Dibromoethane (EDB)
ND
0.035
1,2-Dichlorobenzene
ND
0.035
1,3-Dichlorobenzene
ND
0.035
1,4-Dichlorobenzene
ND
0.035
Dichlorodifluoromethane (Freon 12)
ND
0.035
1,1-Dichloroethane
ND
0.035
1,2-Dichloroethane
ND
0.035
1,1-Dichloroethylene
ND
0.035
cis-1,2-Dichloroethylene
ND
0.035
trans-1,2-Dichloroethylene
ND
0.035
1,2-Dichloropropane
ND
0.035
cis- 1,3 -Dichloropropene
ND
0.035
trans- 1, 3 -Dichloropropene
ND
0.035
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
(Freon 114)
1,4-Dioxane
ND
0.35
Ethanol
ND
1.4
Ethyl Acetate
ND
0.035
Ethylbenzene
ND
0.035
4-Ethyltoluene
ND
0.035
Heptane
ND
0.035
Hexachlorobutadiene
ND
0.035
Hexane
ND
1.4
2-Hexanone (MBK)
ND
0.035
Isopropanol
ND
1.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
Methylene Chloride
ND
0.35
4-Methyl-2-pentanone (MIBK)
ND
0.035
Naphthalene
ND
0.035
Propene
ND
1.4
Styrene
ND
0.035
Page 27 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B236639 - TO-15 Prep
Blank (B236639-BLKI)
Prepared: 07/27/19 Analyzed: 07/28/19
1,1,2,2-Tetrachloroethane
ND
0.035
Tetrachloroethylene
ND
0.035
Tetrahydrofuran
ND
0.035
Toluene
ND
0.035
1,2,4-Trichlorobenzene
ND
0.035
1, 1, 1 -Trichloroethane
ND
0.035
1,1,2-Trichloroethane
ND
0.035
Trichloroethylene
ND
0.035
Trichlorofluoromethane (Freon 11)
ND
0.14
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.14
113)
1,2,4-Trimethylbenzene
ND
0.035
1,3,5-Trimethylbenzene
ND
0.035
Vinyl Acetate
ND
0.70
Vinyl Chloride
ND
0.035
m&p-Xylene
ND
0.070
o-Xylene
ND
0.035
Surrogate: 4-Bromofluorobenzene (1)
LCS (B236639-BS1)
7.85
8.00 98.2
Prepared & Analyzed: 07/27/19
70-130
Acetone
3.94
5.00
78.8
70-130
Benzene
3.79
5.00
75.8
70-130
Benzyl chloride
4.70
5.00
94.0
70-130
Bromodichloromethane
3.90
5.00
78.0
70-130
Bromoform
4.16
5.00
83.3
70-130
Bromomethane
3.51
5.00
70.1
70-130
1,3-Butadiene
3.76
5.00
75.2
70-130
2-Butanone (MEK)
3.77
5.00
75.4
70-130
Carbon Disulfide
4.14
5.00
82.9
70-130
Carbon Tetrachloride
3.79
5.00
75.7
70-130
Chlorobenzene
3.89
5.00
77.8
70-130
Chloroethane
4.46
5.00
89.3
70-130
Chloroform
3.95
5.00
79.0
70-130
Chloromethane
4.58
5.00
91.6
70-130
Cyclohexane
3.84
5.00
76.9
70-130
Dibromochloromethane
4.00
5.00
80.1
70-130
1,2-Dibromoethane (EDB)
4.11
5.00
82.1
70-130
1,2-Dichlorobenzene
4.43
5.00
88.7
70-130
1,3-Dichlorobenzene
4.31
5.00
86.2
70-130
1,4-Dichlorobenzene
4.23
5.00
84.7
70-130
Dichlorodifluoromethane (Freon 12)
4.16
5.00
83.2
70-130
1,1-Dichloroethane
3.96
5.00
79.3
70-130
1,2-Dichloroethane
4.05
5.00
81.1
70-130
1,1-Dichloroethylene
4.31
5.00
86.2
70-130
cis-1,2-Dichloroethylene
3.95
5.00
79.0
70-130
trans-1,2-Dichloroethylene
3.91
5.00
78.2
70-130
1,2-Dichloropropane
3.86
5.00
77.2
70-130
Page 28 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B236639 - TO-15 Prep
LCS (B236639-BS1)
Prepared & Analyzed: 07/27/19
cis-1,3-Dichloropropene
3.88
5.00
77.7
70-130
trans-1,3-Dichloropropene
4.41
5.00
88.2
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
3.55
5.00
71.0
70-130
(Freon 114)
1,4-Dioxane
4.55
5.00
91.0
70-130
Ethanol
3.74
5.00
74.7
70-130
Ethyl Acetate
4.06
5.00
81.2
70-130
Ethylbenzene
3.96
5.00
79.2
70-130
4-Ethyltoluene
4.12
5.00
82.4
70-130
Heptane
3.72
5.00
74.4
70-130
Hexachlorobutadiene
4.37
5.00
87.3
70-130
Hexane
4.47
5.00
89.4
70-130
2-Hexanone (MBK)
3.89
5.00
77.8
70-130
Isopropanol
3.84
5.00
76.8
70-130
Methyl tert-Butyl Ether (MTBE)
3.83
5.00
76.6
70-130
Methylene Chloride
3.71
5.00
74.3
70-130
4-Methyl-2-pentanone (MIBK)
3.96
5.00
79.2
70-130
Naphthalene
5.58
5.00
112
70-130
Propene
3.68
5.00
73.7
70-130
Styrene
4.30
5.00
86.1
70-130
1,1,2,2-Tetrachloroethane
4.04
5.00
80.8
70-130
Tetrachloroethylene
3.79
5.00
75.9
70-130
Tetrahydrofuran
4.07
5.00
81.4
70-130
Toluene
3.95
5.00
79.0
70-130
1,2,4-Trichlorobenzene
5.32
5.00
106
70-130
1, 1, 1 -Trichloroethane
3.54
5.00
70.8
70-130
1,1,2-Trichloroethane
4.12
5.00
82.4
70-130
Trichloroethylene
3.77
5.00
75.3
70-130
Trichlorofluoromethane (Freon 11)
3.92
5.00
78.4
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
3.86
5.00
77.1
70-130
113)
1,2,4-Trimethylbenzene
4.10
5.00
82.1
70-130
1,3,5-Trimethylbenzene
3.94
5.00
78.7
70-130
Vinyl Acetate
3.82
5.00
76.4
70-130
Vinyl Chloride
3.82
5.00
76.3
70-130
m&p-Xylene
7.98
10.0
79.8
70-130
o-Xylene
3.95
5.00
79.0
70-130
Surrogate: 4-Bromofluorobenzene (1) 7.99 8.00 99.8 70-130
Page 29 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
malyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B236733 - TO-15 Prep
Blank (B236733-BLKI)
Prepared & Analyzed: 07/29/19
Acetone
ND
1.4
Benzene
ND
0.035
Benzyl chloride
ND
0.035
Bromodichloromethane
ND
0.035
Bromoform
ND
0.035
Bromomethane
ND
0.035
1,3-Butadiene
ND
0.035
2-Butanone (MEK)
ND
1.4
Carbon Disulfide
ND
0.35
Carbon Tetrachloride
ND
0.035
Chlorobenzene
ND
0.035
Chloroethane
ND
0.035
Chloroform
ND
0.035
Chloromethane
ND
0.070
Cyclohexane
ND
0.035
Dibromochloromethane
ND
0.035
1,2-Dibromoethane (EDB)
ND
0.035
1,2-Dichlorobenzene
ND
0.035
1,3-Dichlorobenzene
ND
0.035
1,4-Dichlorobenzene
ND
0.035
Dichlorodifluoromethane (Freon 12)
ND
0.035
1,1-Dichloroethane
ND
0.035
1,2-Dichloroethane
ND
0.035
1,1-Dichloroethylene
ND
0.035
cis-1,2-Dichloroethylene
ND
0.035
trans-1,2-Dichloroethylene
ND
0.035
1,2-Dichloropropane
ND
0.035
cis- 1,3 -Dichloropropene
ND
0.035
trans- 1, 3 -Dichloropropene
ND
0.035
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.035
(Freon 114)
1,4-Dioxane
ND
0.35
Ethanol
ND
1.4 Z-01
Ethyl Acetate
ND
0.035
Ethylbenzene
ND
0.035
4-Ethyltoluene
ND
0.035
Heptane
ND
0.035
Hexachlorobutadiene
ND
0.035
Hexane
ND
1.4
2-Hexanone (MBK)
ND
0.035
Isopropanol
ND
1.4
Methyl tert-Butyl Ether (MTBE)
ND
0.035
Methylene Chloride
ND
0.35
4-Methyl-2-pentanone (MIBK)
ND
0.035
Naphthalene
ND
0.035
Propene
ND
1.4
Styrene
ND
0.035
Page 30 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B236733 - TO-15 Prep
Blank (B236733-BLKI)
Prepared & Analyzed: 07/29/19
1,1,2,2-Tetrachloroethane
ND
0.035
Tetrachloroethylene
ND
0.035
Tetrahydrofuran
ND
0.035
Toluene
ND
0.035
1,2,4-Trichlorobenzene
ND
0.035
1, 1, 1 -Trichloroethane
ND
0.035
1,1,2-Trichloroethane
ND
0.035
Trichloroethylene
ND
0.035
Trichlorofluoromethane (Freon 11)
ND
0.14
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.14
113)
1,2,4-Trimethylbenzene
ND
0.035
1,3,5-Trimethylbenzene
ND
0.035
Vinyl Acetate
ND
0.70
Vinyl Chloride
ND
0.035
m&p-Xylene
ND
0.070
o-Xylene
ND
0.035
Surrogate: 4-Bromofluorobenzene (1)
LCS (B236733-BS1)
7.99
8.00 99.9
Prepared & Analyzed: 07/29/19
70-130
Acetone
3.77
5.00
75.4
70-130
Benzene
3.71
5.00
74.2
70-130
Benzyl chloride
5.53
5.00
ill
70-130
Bromodichloromethane
3.85
5.00
77.0
70-130
Bromoform
4.51
5.00
90.2
70-130
Bromomethane
4.46
5.00
89.2
70-130
1,3-Butadiene
3.86
5.00
77.2
70-130
2-Butanone (MEK)
3.80
5.00
75.9
70-130
Carbon Disulfide
4.29
5.00
85.8
70-130
Carbon Tetrachloride
3.88
5.00
77.6
70-130
Chlorobenzene
3.97
5.00
79.4
70-130
Chloroethane
4.54
5.00
90.7
70-130
Chloroform
4.11
5.00
82.2
70-130
Chloromethane
4.30
5.00
86.0
70-130
Cyclohexane
3.82
5.00
76.3
70-130
Dibromochloromethane
4.17
5.00
83.4
70-130
1,2-Dibromoethane (EDB)
4.25
5.00
84.9
70-130
1,2-Dichlorobenzene
5.10
5.00
102
70-130
1,3-Dichlorobenzene
4.85
5.00
97.1
70-130
1,4-Dichlorobenzene
4.79
5.00
95.9
70-130
Dichlorodifluoromethane (Freon 12)
4.29
5.00
85.9
70-130
1,1-Dichloroethane
4.06
5.00
81.2
70-130
1,2-Dichloroethane
4.22
5.00
84.5
70-130
1,1-Dichloroethylene
4.26
5.00
85.1
70-130
cis-1,2-Dichloroethylene
4.11
5.00
82.2
70-130
trans-1,2-Dichloroethylene
3.99
5.00
79.8
70-130
1,2-Dichloropropane
3.76
5.00
75.2
70-130
Page 31 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B236733 - TO-15 Prep
LCS (B236733-BS1)
Prepared & Analyzed: 07/29/19
cis-1,3-Dichloropropene
3.90
5.00
78.0
70-130
trans-1,3-Dichloropropene
4.45
5.00
88.9
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
3.66
5.00
73.2
70-130
(Freon 114)
1,4-Dioxane
4.64
5.00
92.7
70-130
Ethanol
3.22
5.00
64.5 *
70-130 Z-01
Ethyl Acetate
4.09
5.00
81.9
70-130
Ethylbenzene
4.01
5.00
80.2
70-130
4-Ethyltoluene
4.36
5.00
87.2
70-130
Heptane
3.60
5.00
72.1
70-130
Hexachlorobutadiene
5.53
5.00
111
70-130
Hexane
4.34
5.00
86.7
70-130
2-Hexanone (MBK)
3.82
5.00
76.3
70-130
Isopropanol
3.50
5.00
70.1
70-130
Methyl tert-Butyl Ether (MTBE)
4.00
5.00
80.1
70-130
Methylene Chloride
3.77
5.00
75.3
70-130
4-Methyl-2-pentanone (MIBK)
3.86
5.00
77.3
70-130
Naphthalene
6.87
5.00
137 *
70-130 Z-01
Propene
3.57
5.00
71.5
70-130
Styrene
4.56
5.00
91.3
70-130
1,1,2,2-Tetrachloroethane
4.33
5.00
86.5
70-130
Tetrachloroethylene
3.91
5.00
78.2
70-130
Tetrahydrofuran
4.17
5.00
83.3
70-130
Toluene
3.96
5.00
79.1
70-130
1,2,4-Trichlorobenzene
6.97
5.00
139 *
70-130 L-01
1, 1, 1 -Trichloroethane
3.52
5.00
70.3
70-130
1,1,2-Trichloroethane
4.17
5.00
83.5
70-130
Trichloroethylene
3.82
5.00
76.4
70-130
Trichlorofluoromethane (Freon 11)
4.02
5.00
80.3
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
4.11
5.00
82.2
70-130
113)
1,2,4-Trimethylbenzene
4.47
5.00
89.4
70-130
1,3,5-Trimethylbenzene
4.15
5.00
83.0
70-130
Vinyl Acetate
3.87
5.00
77.4
70-130
Vinyl Chloride
3.94
5.00
78.8
70-130
m&p-Xylene
8.16
10.0
81.6
70-130
o-Xylene
4.09
5.00
81.8
70-130
Surrogate: 4-Bromofluorobenzene (1) 8.13 8.00 102 70-130
Page 32 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
malyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B238009 - TO-15 Prep
Blank (B238009-BLKI)
Prepared & Analyzed: 08/13/19
Acetone
ND
0.80
Benzene
ND
0.020
Benzyl chloride
ND
0.020
Bromodichloromethane
ND
0.020
Bromoform
ND
0.020
Bromomethane
ND
0.020
1,3-Butadiene
ND
0.020
2-Butanone (MEK)
ND
0.80
Carbon Disulfide
ND
0.20
Carbon Tetrachloride
ND
0.020
Chlorobenzene
ND
0.020
Chloroethane
ND
0.020
Chloroform
ND
0.020
Chloromethane
ND
0.040
Cyclohexane
ND
0.020
Dibromochloromethane
ND
0.020
1,2-Dibromoethane (EDB)
ND
0.020
1,2-Dichlorobenzene
ND
0.020
1,3-Dichlorobenzene
ND
0.020
1,4-Dichlorobenzene
ND
0.020
Dichlorodifluoromethane (Freon 12)
ND
0.020
1,1-Dichloroethane
ND
0.020
1,2-Dichloroethane
ND
0.020
1,1-Dichloroethylene
ND
0.020
cis-1,2-Dichloroethylene
ND
0.020
trans-1,2-Dichloroethylene
ND
0.020
1,2-Dichloropropane
ND
0.020
cis- 1,3 -Dichloropropene
ND
0.020
trans- 1, 3 -Dichloropropene
ND
0.020
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
0.020
(Freon 114)
1,4-Dioxane
ND
0.20
Ethanol
ND
0.80 V-05, Z-01
Ethyl Acetate
ND
0.020
Ethylbenzene
ND
0.020
4-Ethyltoluene
ND
0.020
Heptane
ND
0.020
Hexachlorobutadiene
ND
0.020
Hexane
ND
0.80
2-Hexanone (MBK)
ND
0.020
Isopropanol
ND
0.80
Methyl tert-Butyl Ether (MTBE)
ND
0.020
Methylene Chloride
ND
0.20
4-Methyl-2-pentanone (MIBK)
ND
0.020
Naphthalene
ND
0.020
Propene
ND
0.80
Styrene
ND
0.020
Page 33 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B238009 - TO-15 Prep
Blank (B238009-BLKI)
Prepared & Analyzed: 08/13/19
1,1,2,2-Tetrachloroethane
ND
0.020
Tetrachloroethylene
ND
0.020
Tetrahydrofuran
ND
0.020
Toluene
ND
0.020
1,2,4-Trichlorobenzene
ND
0.020
1, 1, 1 -Trichloroethane
ND
0.020
1,1,2-Trichloroethane
ND
0.020
Trichloroethylene
ND
0.020
Trichlorofluoromethane (Freon 11)
ND
0.080
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
0.080
113)
1,2,4-Trimethylbenzene
ND
0.020
1,3,5-Trimethylbenzene
ND
0.020
Vinyl Acetate
ND
0.40
Vinyl Chloride
ND
0.020
m&p-Xylene
ND
0.040
o-Xylene
ND
0.020
Surrogate: 4-Bromofluorobenzene (1)
LCS (B238009-BS1)
8.13
8.00 102
Prepared & Analyzed: 08/13/19
70-130
Acetone
4.45
5.00
89.1
70-130
Benzene
4.16
5.00
83.2
70-130
Benzyl chloride
6.22
5.00
124
70-130
Bromodichloromethane
4.37
5.00
87.4
70-130
Bromoform
5.09
5.00
102
70-130
Bromomethane
5.11
5.00
102
70-130
1,3-Butadiene
4.27
5.00
85.4
70-130
2-Butanone (MEK)
4.48
5.00
89.5
70-130
Carbon Disulfide
4.96
5.00
99.1
70-130
Carbon Tetrachloride
4.35
5.00
87.0
70-130
Chlorobenzene
4.48
5.00
89.5
70-130
Chloroethane
4.98
5.00
99.6
70-130
Chloroform
5.16
5.00
103
70-130
Chloromethane
4.98
5.00
99.7
70-130
Cyclohexane
4.30
5.00
86.0
70-130
Dibromochloromethane
4.72
5.00
94.4
70-130
1,2-Dibromoethane (EDB)
4.82
5.00
96.4
70-130
1,2-Dichlorobenzene
5.98
5.00
120
70-130
1,3-Dichlorobenzene
5.70
5.00
114
70-130
1,4-Dichlorobenzene
5.62
5.00
112
70-130
Dichlorodifluoromethane (Freon 12)
5.30
5.00
106
70-130
1,1-Dichloroethane
4.92
5.00
98.3
70-130
1,2-Dichloroethane
5.12
5.00
102
70-130
1,1-Dichloroethylene
4.39
5.00
87.7
70-130
cis-1,2-Dichloroethylene
4.90
5.00
98.1
70-130
trans-1,2-Dichloroethylene
4.82
5.00
96.5
70-130
1,2-Dichloropropane
4.17
5.00
83.4
70-130
Page 34 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
\nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua]
Batch B238009 - TO-15 Prep
LCS (B238009-BS1)
Prepared & Analyzed: 08/13/19
cis-1,3-Dichloropropene
4.32
5.00
86.4
70-130
trans-1,3-Dichloropropene
4.90
5.00
98.0
70-130
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
4.53
5.00
90.5
70-130
(Freon 114)
1,4-Dioxane
5.27
5.00
105
70-130
Ethanol
3.26
5.00
65.2
* 70-130
V-05, Z-01
Ethyl Acetate
4.74
5.00
94.9
70-130
Ethylbenzene
4.53
5.00
90.7
70-130
4-Ethyltoluene
4.97
5.00
99.4
70-130
Heptane
3.89
5.00
77.9
70-130
Hexachlorobutadiene
6.54
5.00
131
* 70-130
L-01
Hexane
5.00
5.00
100
70-130
2-Hexanone (MBK)
3.90
5.00
78.1
70-130
Isopropanol
4.10
5.00
82.0
70-130
Methyl tert-Butyl Ether (MTBE)
4.79
5.00
95.8
70-130
Methylene Chloride
4.38
5.00
87.5
70-130
4-Methyl-2-pentanone (MIBK)
3.88
5.00
77.7
70-130
Naphthalene
7.73
5.00
155
* 70-130
L-01
Propene
4.22
5.00
84.5
70-130
Styrene
5.07
5.00
101
70-130
1,1,2,2-Tetrachloroethane
4.80
5.00
96.0
70-130
Tetrachloroethylene
4.67
5.00
93.4
70-130
Tetrahydrofuran
4.75
5.00
95.0
70-130
Toluene
4.50
5.00
90.0
70-130
1,2,4-Trichlorobenzene
8.12
5.00
162
* 70-130
L-01, V-2(
1, 1, 1 -Trichloroethane
4.03
5.00
80.6
70-130
1,1,2-Trichloroethane
4.75
5.00
94.9
70-130
Trichloroethylene
4.48
5.00
89.7
70-130
Trichlorofluoromethane (Freon 11)
4.67
5.00
93.4
70-130
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
5.00
5.00
100
70-130
113)
1,2,4-Trimethylbenzene
5.03
5.00
101
70-130
1,3,5-Trimethylbenzene
4.72
5.00
94.4
70-130
Vinyl Acetate
4.44
5.00
88.7
70-130
Vinyl Chloride
4.51
5.00
90.3
70-130
m&p-Xylene
8.98
10.0
89.8
70-130
o-Xylene
4.61
5.00
92.2
70-130
Surrogate: 4-Bromofluorobenzene (1) 8.03 8.00 100 70-130
Page 35 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
knalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qual
Batch B238009 - TO-15 Prep
Duplicate (B238009-DUPI)
Source: 19G1151-05RE1
Prepared & Analyzed: 08/13/19
Acetone
ND
24000
ND
57000
ND
25
Benzene
ND
600
ND
1900
ND
25
Benzyl chloride
ND
600
ND
3100
ND
25
Bromodichloromethane
ND
600
ND
4000
ND
25
Bromoform
ND
600
ND
6200
ND
25
Bromomethane
ND
600
ND
2300
ND
25
1,3-Butadiene
ND
600
ND
1300
ND
25
2-Butanone (MEK)
ND
24000
ND
71000
ND
25
Carbon Disulfide
ND
6000
ND
19000
ND
25
Carbon Tetrachloride
ND
600
ND
3800
ND
25
Chlorobenzene
ND
600
ND
2800
ND
25
Chloroethane
ND
600
ND
1600
ND
25
Chloroform
ND
600
ND
2900
ND
25
Chloromethane
ND
1200
ND
2500
ND
25
Cyclohexane
ND
600
ND
2100
ND
25
Dibromochloromethane
ND
600
ND
5100
ND
25
1,2-Dibromoethane (EDB)
ND
600
ND
4600
ND
25
1,2-Dichlorobenzene
ND
600
ND
3600
ND
25
1,3-Dichlorobenzene
ND
600
ND
3600
ND
25
1,4-Dichlorobenzene
ND
600
ND
3600
ND
25
Dichlorodifluoromethane (Freon 12)
ND
600
ND
3000
ND
25
1,1-Dichloroethane
ND
600
ND
2400
ND
25
1,2-Dichloroethane
ND
600
ND
2400
ND
25
1,1-Dichloroethylene
ND
600
ND
2400
ND
25
cis-1,2-Dichloroethylene
ND
600
ND
2400
ND
25
trans-1,2-Dichloroethylene
ND
600
ND
2400
ND
25
1,2-Dichloropropane
ND
600
ND
2800
ND
25
cis-1,3-Dichloropropene
ND
600
ND
2700
ND
25
trans- 1, 3 -Dichloropropene
ND
600
ND
2700
ND
25
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane
ND
600
ND
4200
ND
25
(Freon 114)
1,4-Dioxane
ND
6000
ND
22000
ND
25
Ethanol
ND
24000
ND
45000
ND
25 V-05, Z-01
Ethyl Acetate
ND
600
ND
2200
ND
25
Ethylbenzene
ND
600
ND
2600
ND
25
4-Ethyltoluene
ND
600
ND
2900
ND
25
Heptane
36000
600
150000
2500
36000
0.201 25
Hexachlorobutadiene
ND
600
ND
6400
ND
25
Hexane
50000
24000
170000
85000
52000
3.73 25
2-Hexanone (MBK)
ND
600
ND
2500
ND
25
Isopropanol
ND
24000
ND
59000
ND
25
Methyl tert-Butyl Ether (MTBE)
ND
600
ND
2200
ND
25
Methylene Chloride
ND
6000
ND
21000
ND
25
4-Methyl-2-pentanone (MIBK)
ND
600
ND
2500
ND
25
Naphthalene
ND
600
ND
3100
ND
25
Propene
ND
24000
ND
41000
ND
25
Styrene
ND
600
ND
2600
ND
25
Page 36 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
QUALITY CONTROL
Air Toxics by EPA Compendium Methods - Quality Control
ppbv ug/m3 Spike Level Source %REC RPD
.nalyte Results RL Results RL ppbv Result %REC Limits RPD Limit Flag/Qua
Batch B238009 - TO-15 Prep
Duplicate (B238009-DUP1)
Source: 19G1151-05RE1
Prepared & Analyzed: 08/13/19
1,1,2,2-Tetrachloroethane
ND
600
ND
4100
ND
25
Tetrachloroethylene
ND
600
ND
4100
ND
25
Tetrahydrofuran
ND
600
ND
1800
ND
25
Toluene
ND
600
ND
2300
ND
25
1,2,4-Trichlorobenzene
ND
600
ND
4500
ND
25
1, 1, 1 -Trichloroethane
ND
600
ND
3300
ND
25
1,1,2-Trichloroethane
ND
600
ND
3300
ND
25
Trichloroethylene
ND
600
ND
3200
ND
25
Trichlorofluoromethane (Freon 11)
ND
2400
ND
13000
ND
25
1, 1,2-Trichloro- 1,2,2-trifluoroethane (Freon
ND
2400
ND
18000
ND
25
113)
1,2,4-Trimethylbenzene
ND
600
ND
2900
ND
25
1,3,5-Trimethylbenzene
ND
600
ND
2900
ND
25
Vinyl Acetate
ND
12000
ND
42000
ND
25
Vinyl Chloride
ND
600
ND
1500
ND
25
m&p-Xylene
ND
1200
ND
5200
ND
25
o-Xylene
ND
600
ND
2600
ND
25
Surrogate: 4-Bromofluorobenzene (1) 8.21 8.00 103 70-130
Page 37 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 * FAX [phone] " TEL. [phone]
FLAG/QUALIFIER SUMMARY
*
QC result is outside of established limits.
t
Wide recovery limits established for difficult compound.
$
Wide RPD limits established for difficult compound.
#
Data exceeded client recommended or regulatory level
RL
Reporting Limit
MDL
Method Detection Limit
RPD
Relative Percent Difference
LCS
Laboratory Control Sample
LCS Dup
Duplicate Laboratory Control Sample
MS
Matrix Spike Sample
MS Dup
Duplicate Matrix Spike Sample
REC
Recovery
QC
Quality Control
ppbv
Parts per billion volume
EPA
United States Environmental Protection Agency
% REC
Percent Recovery
ND
Not Detected
N/A
Not Applicable
DL
Detection Limit
NC Not Calculated
LFB/LCS Lab Fortified Blank/Lab Control Sample
ORP Oxidation -Reduction Potential
wet Not dry weight corrected
% wt Percent weight
Kg Kilogram
g Gram
mg Milligram
µg Microgram
ng Nanogram
L Liter
mL Milliliter
µL Microliter
m3 Cubic Meter
EPH Extractable Petroleum Hydrocarbons
VPH Volatile Petroleum Hydrocarbons
APH Air Petroleum Hydrocarbons
FID Flame Ionization Detector
PID Photo Ionization Detector
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
J Detected but below the Reporting Limit (lowest calibration standard); therefore, result is an estimated
concentration (CLP J-Flag).
L-01 Laboratory fortified blank /laboratory control sample recovery outside of control limits. Data validation is not
affected since all results are "not detected" for all samples in this batch for this compound and bias is on the high
side.
L-03 Laboratory fortified blank/laboratory control sample recovery is outside of control limits. Reported value for this
compound is likely to be biased on the low side.
RL-11 Elevated reporting limit due to high concentration of target compounds.
RL-12 Elevated reporting limit due to matrix interference.
V-05 Continuing calibration verification (CCV) did not meet method specifications and was biased on the low side for
this compound.
V-20 Continuing calibration verification (CCV) did not meet method specifications and was biased on the high side.
Data validation is not affected since sample result was "not detected" for this compound.
V-35 Initial calibration verification (ICV) did not meet method specifications and was biased on the high side for this
compound. Reported result is estimated.
Page 38 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
FLAG/QUALIFIER SUMMARY
V-36 Initial calibration verification (ICV) did not meet method specifications and was biased on the high side. Data
validation is not affected since sample result was "not detected" for this compound.
Z-01 Compound fails the method requirement of 70-l3O% recovery for the LCS. Is classified by the lab as a difficult
compound and passes the in house limits of 50-150%.
ANALYST
TPH Thomas P. Hnitecki
PEB Paula E. Blakeborough
KKM Kerry K. McGee
BRF Brittany R. Fisk
Page 39 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area %
Limits
RT Diff
RT Diff
Limit
Q
Initial Cal Check (S036903-ICV1) Lab File ID: H1914916.13 Analyzed: 05/30/19 05:00
Bromochloromethane (1)
235809
9.19
250109
9.19
94
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
689777
11.092
642900
11.092
107
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
629422
15.877
581108
15.877
108
60-140
0.0000
+/-0.50
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area %
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S038380-CCV1) Lab File ID: H1920404.13 Analyzed: 07/23/19 14:19
Bromochloromethane (1)
258181
9.19
250109
9.19
103
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
644930
11.086
642900
11.092
100
60 - 140
-0.0060
+/-0.50
Chlorobenzene-d5(1)
521748
15.877
581108
15.877
90
60-140
0.0000
+/-0.50
LCS (B236275-BS1 ) Lab File ID: H1920405.13 Analyzed: 07/23/19 15:04
Bromochloromethane (1)
289043
9.19
258181
9.19
112
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
621112
11.086
644930
11.086
96
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
516287
15.877
521748
15.877
99
60-140
0.0000
+/-0.50
Blank (B236275-BLK1) Lab File ID: H1920407.13 Analyzed: 07/23/19 16:42
Bromochloromethane (1)
261616
9.19
258181
9.19
101
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene(1)
592425
11.086
644930
11.086
92
60-140
0.0000
+/-0.50
Chlorobenzene-d5(1)
551065
15.877
521748
15.877
106
60-140
0.0000
+/-0.50
CS-1 (19G1151-07) Lab File ID: H1920408.13 Analyzed: 07/23/19 18:13
Bromochloromethane (1)
252079
9.183
258181
9.19
98
60 - 140
-0.0070
+/-0.50
1,4-Difluorobenzene (1)
612297
11.079
644930
11.086
95
60 - 140
-0.0070
+/-0.50
Chlorobenzene-d5(1)
511539
15.871
521748
15.877
98
60-140
-0.0060
+/-0.50
OA-1 (19G1151-08) Lab File ID: H1920409.13 Analyzed: 07/23/19 19:14
Bromochloromethane (1)
310834
9.196
258181
9.19
120
60 - 140
0.0060
+/-0.50
1,4-Difluorobenzene(1)
598508
11.092
644930
11.086
93
60-140
0.0060
+/-0.50
Chlorobenzene-d5(1)
527242
15.877
521748
15.877
101
60-140
0.0000
+/-0.50
CS-1 (19G1151-07RE1) Lab File ID: 1-11920424.13 Analyzed: 07/24/19 08:56
Bromochloromethane (1)
285190
9.183
258181
9.19
110
60 - 140
-0.0070
+/-0.50
1,4-Difluorobenzene (1)
603081
11.085
644930
11.086
94
60 - 140
-0.0010
+/-0.50
Chlorobenzene-d5(1)
489174
15.871
521748
15.877
94
60-140
-0.0060
+/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
Reference
Reference
Area %
RT Diff
Internal Standard
Response
RT
Response
RT
Area %
Limits 11
RT Diff
Limit
Q
Page 40 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Initial Cal Check (S038528-ICV1) Lab File ID: B1920819.D Analyzed: 07/27/19 19:24
Bromochloromethane (1)
144000
5.05
141846
5.054
102
60 - 140
-0.0040
+/-0.50
1,4-Difluorobenzene (1)
338979
6.264
331570
6.268
102
60 - 140
-0.0040
+/-0.50
Chlorobenzene-d5(1)
300441
9.857
293128
9.861
102
60-140
-0.0040
+/-0.50
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S038536-CCV1) Lab File ID: B1920823.D Analyzed: 07/27/19 21:52
Bromochloromethane (1)
140958
5.048
141846
5.054
99
60 - 140
-0.0060
+/-0.50
1,4-Difluorobenzene (1)
328579
6.268
331570
6.268
99
60 - 140
0.0000
+/-0.50
Chlorobenzene-d5(1)
290553
9.861
293128
9.861
99
60-140
0.0000
+/-0.50
LCS (B236639-BS1 ) Lab File ID: B1920826.D Analyzed: 07/27/19 23:18
Bromochloromethane (1)
142239
5.059
140958
5.048
101
60 - 140
0.0110
+/-0.50
1,4-Difluorobenzene (1)
332752
6.273
328579
6.268
101
60 - 140
0.0050
+/-0.50
Chlorobenzene-d5(1)
292302
9.86
290553
9.861
101
60-140
-0.0010
+/-0.50
Blank (B236639-BLK1) Lab File ID: B1920829.D Analyzed: 07/28/19 00:52
Bromochloromethane (1)
138599
5.048
140958
5.048
98
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
316892
6.267
328579
6.268
96
60 - 140
-0.0010
+/-0.50
Chlorobenzene-d5 (1)
279979
9.861
290553
9.861
96
60-140
0.0000
+/-0.50
SG-2 (19G1151-01 ) Lab File ID: B1920833.D Analyzed: 07/28/19 02:47
Bromochloromethane (1)
140746
5.077
140958
5.048
100
60 - 140
0.0290
+/-0.50
1,4-Difluorobenzene (1)
328219
6.284
328579
6.268
100
60 - 140
0.0160
+/-0.50
Chlorobenzene-d5(1)
300533
9.866
290553
9.861
103
60-140
0.0050
+/-0.50
SG-3 (19G1151-02) Lab File ID: B1920834.D Analyzed: 07/28/19 03:15
Bromochloromethane (1)
149347
5.072
140958
5.048
106
60 - 140
0.0240
+/-0.50
1,4-Difluorobenzene (1)
342794
6.286
328579
6.268
104
60 - 140
0.0180
+/-0.50
Chlorobenzene-d5(1)
303860
9.867
290553
9.861
105
60-140
0.0060
+/-0.50
SG-1 (19G1151-03) Lab File ID: B1920836.D Analyzed: 07/28/19 04:11
Bromochloromethane (1)
146294
5.062
140958
5.048
104
60 - 140
0.0140
+/-0.50
1,4-Difluorobenzene (1)
349897
6.275
328579
6.268
106
60 - 140
0.0070
+/-0.50
Chlorobenzene-d5(1)
307133
9.863
290553
9.861
106
60-140
0.0020
+/-0.50
SG-5 (19G1151-04 ) Lab File ID: B1920838.D Analyzed: 07/28/19 05:08
Bromochloromethane (1)
153259
5.062
140958
5.048
109
60 - 140
0.0140
+/-0.50
1,4-Difluorobenzene (1)
355087
6.275
328579
6.268
108
60 - 140
0.0070
+/-0.50
Chlorobenzene-d5(1)
314003
9.863
290553
9.861
108
60-140
0.0020
+/-0.50
Page 41 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
SG4 (19G1151-05) Lab File ID: B1920846.D Analyzed: 07/28/19 08:53
Bromochloromethane (1)
156852
5.077
140958
5.048
111
60 - 140
0.0290
+/-0.50
1,4-Difluorobenzene (1)
412856
6.284
328579
6.268
126
60 - 140
0.0160
+/-0.50
Chlorobenzene-d5(1)
334391
9.866
290553
9.861
115
60-140
0.0050
+/-0.50
SG-D (19G1151-06) Lab File ID: B1920847.D Analyzed: 07/28/19 09:22
Bromochloromethane (1)
126215
5.071
140958
5.048
90
60 - 140
0.0230
+/-0.50
1,4-Difluorobenzene (1)
439072
6.285
328579
6.268
134
60 - 140
0.0170
+/-0.50
Chlorobenzene-d5(1)
296141
9.878
290553
9.861
102
60-140
0.0170
+/-0.50
SG-D (19G1151-06RE1) Lab File ID: B1920848.D Analyzed: 07/28/19 09:49
Bromochloromethane (1)
156497
5.059
140958
5.048
ill
60 - 140
0.0110
+/-0.50
1,4-Difluorobenzene (1)
414349
6.278
328579
6.268
126
60 - 140
0.0100
+/-0.50
Chlorobenzene-d5(1)
340535
9.86
290553
9.861
117
60-140
-0.0010
+/-0.50
INTERNAL STANDARD AREA AND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area %
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S038583-CCV1) Lab File ID: B1921006.D Analyzed: 07/29/19 11:24
Bromochloromethane (1)
157678
5.053
141846
5.054
ill
60 - 140
-0.0010
+/-0.50
1,4-Difluorobenzene (1)
369948
6.267
331570
6.268
112
60 - 140
-0.0010
+/-0.50
Chlorobenzene-d5(1)
324123
9.86
293128
9.861
Ill
60-140
-0.0010
+/-0.50
LCS (B236733-BS1) Lab File ID: B1921007.D Analyzed: 07/29/19 11:52
Bromochloromethane (1)
170943
5.053
157678
5.053
108
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
422458
6.267
369948
6.267
114
60 - 140
0.0000
+/-0.50
Chlorobenzene-d5(1)
373328
9.86
324123
9.86
115
60-140
0.0000
+/-0.50
Blank (B236733-BLK1) Lab File ID: B 192101 LD Analyzed: 07/29/19 13:58
Bromochloromethane (1)
159890
5.047
157678
5.053
101
60 - 140
-0.0060
+/-0.50
1,4-Difluorobenzene (1)
390826
6.266
369948
6.267
106
60 - 140
-0.0010
+/-0.50
Chlorobenzene-d5(1)
341592
9.86
324123
9.86
105
60-140
0.0000
+/-0.50
SG-2 (19G1151-01RE1) Lab File ID: B1921017.D Analyzed: 07/29/19 16:58
Bromochloromethane (1)
146682
5.053
157678
5.053
93
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
346918
6.273
369948
6.267
94
60 - 140
0.0060
+/-0.50
Chlorobenzene-d5(1)
301066
9.86
324123
9.86
93
60-140
0.0000
+/-0.50
SG-1 (19G1151-03RE1) Lab File ID: B1921018.D Analyzed: 07/29/19 17:26
Bromochloromethane (1)
147347
5.053
157678
5.053
93
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
349134
6.273
369948
6.267
94
60 - 140
0.0060
+/-0.50
Chlorobenzene-d5(1)
302714
9.86
324123
9.86
93
60-140
0.0000
+/-0.50
Page 42 of 56

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ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
SG-5 (19G1151-04RE1) Lab File ID: B1921019.D Analyzed: 07/29/19 17:54
Bromochloromethane (1)
146552
5.053
157678
5.053
93
60 - 140
0.0000
+/-0.50
1,4-Difluorobenzene (1)
347968
6.273
369948
6.267
94
60 - 140
0.0060
+/-0.50
Chlorobenzene-d5(1)
304354
9.86
324123
9.86
94
60-140
0.0000
+/-0.50
INTERNAL STANDARD AREAAND RT SUMMARY
EPA TO-15
Internal Standard
Response
RT
Reference
Response
Reference
RT
Area %
Area o/
Limits
RT Diff
RT Diff
Limit
Q
Calibration Check (S039169-CCV1) Lab File ID: B1922504.1) Analyzed: 08/13/19 13:08
Bromochloromethane (1)
154229
5.047
141846
5.054
109
60 - 140
-0.0070
+/-0.50
1,4-Difluorobenzene (1)
428453
6.267
331570
6.268
129
60 - 140
-0.0010
+/-0.50
Chlorobenzene-d5(1)
368986
9.86
293128
9.861
126
60-140
-0.0010
+/-0.50
LCS (B238009-BS1 ) Lab File ID: B1922505.D Analyzed: 08/13/19 13:37
Bromochloromethane (1)
152507
5.053
154229
5.047
99
60 - 140
0.0060
+/-0.50
1,4-Difluorobenzene (1)
419882
6.267
428453
6.267
98
60 - 140
0.0000
+/-0.50
Chlorobenzene-d5(1)
372287
9.861
368986
9.86
101
60-140
0.0010
+/-0.50
Blank (B238009-BLK1) Lab File ID: B 192251 LD Analyzed: 08/13/19 16:43
Bromochloromethane (1)
144133
5.054
154229
5.047
93
60 - 140
0.0070
+/-0.50
1,4-Difluorobenzene(1)
374014
6.268
428453
6.267
87
60-140
0.0010
+/-0.50
Chlorobenzene-d5(1)
324495
9.855
368986
9.86
88
60-140
-0.0050
+/-0.50
SG4 (19G1151-05RE1) Lab File ID: B1922523.D Analyzed: 08/13/19 22:39
Bromochloromethane (1)
142070
5.056
154229
5.047
92
60 - 140
0.0090
+/-0.50
1,4-Difluorobenzene(1)
427359
6.27
428453
6.267
100
60-140
0.0030
+/-0.50
Chlorobenzene-d5(1)
341525
9.857
368986
9.86
93
60-140
-0.0030
+/-0.50
Duplicate (B238009-DUP1) Lab File ID: B1922524.D Analyzed: 08/13/19 23:06
Bromochloromethane (1)
147484
5.054
154229
5.047
96
60 - 140
0.0070
+/-0.50
1,4-Difluorobenzene (1)
443149
6.268
428453
6.267
103
60 - 140
0.0010
+/-0.50
Chlorobenzene-d5(1)
341967
9.861
368986
9.86
93
60-140
0.0010
+/-0.50
Page 43 of 56

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ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S038380-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
3.65
1.095182
0.798838
-27.1
30
Benzene
A
5.00
4.10
0.7775467
0.6379012
-18.0
30
Benzyl chloride
A
5.00
5.03
0.8972106
0.9022992
0.6
30
Bromodichloromethane
A
5.00
4.24
0.5902664
0.5006683
-15.2
30
Bromoform
A
5.00
4.49
0.6197052
0.5565537
-10.2
30
Bromomethane
A
5.00
3.74
0.6381307
0.4772776
-25.2
30
1,3-Butadiene
A
5.00
4.87
0.5191753
0.5056793
-2.6
30
2-Butanone(MEK)
A
5.00
3.80
1.377306
1.048077
-23.9
30
Carbon Disulfide
A
5.00
3.68
1.909562
1.40718
-26.3
30
Carbon Tetrachloride
A
5.00
4.09
0.5813683
0.4757453
-18.2
30
Chlorobenzene
A
5.00
4.16
0.8626648
0.7175265
-16.8
30
Chloroethane
A
5.00
4.15
0.3582316
0.2976083
-16.9
30
Chloroform
A
5.00
3.71
1.374429
1.01975
-25.8
30
Chloromethane
A
5.00
5.02
0.6532658
0.656166
0.4
30
Cyclohexane
A
5.00
3.64
0.3660889
0.2669114
-27.1
30
Dibromochloromethane
A
5.00
4.62
0.6820771
0.6306585
-7.5
30
1,2-Dibromoethane(EDB)
A
5.00
4.60
0.5499106
0.5054394
-8.1
30
1,2-Dichlorobenzene
A
5.00
4.63
0.7245878
0.6708802
-7.4
30
1,3-Dichlorobenzene
A
5.00
4.84
0.7500235
0.7260854
-3.2
30
1,4-Dichlorobenzene
A
5.00
4.95
0.7239054
0.7163458
-1.0
30
Dichlorodifluoromethane (Freon 12)
A
5.00
4.65
1.516109
1.408965
-7.1
30
1,1-Dichloroethane
A
5.00
3.70
1.277799
0.9468458
-25.9
30
1,2-Dichloroethane
A
5.00
4.39
0.8474702
0.7437015
-12.2
30
1,1-Dichloroethylene
A
5.00
3.85
1.06817
0.8216685
-23.1
30
cis-1,2-Dichloroethylene
A
5.00
3.30
1.064439
0.7023166
-34.0
30
trans-1,2-Dichloroethylene
A
5.00
3.75
0.9846697
0.7386694
-25.0
30
1,2-Dichloropropane
A
5.00
4.22
0.3346456
0.2824567
-15.6
30
cis-1,3-Dichloropropene
A
5.00
4.25
0.4712367
0.4005148
-15.0
30
trans- l,3-Dichloropropene
A
5.00
4.52
0.3882193
0.3511104
-9.6
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.46
1.541965
1.375878
-10.8
30
1,4-Dioxane
A
5.00
4.24
0.1431521
0.1215239
-15.1
30
Ethanol
A
5.00
3.39
0.2132243
0.144525
-32.2
30
Ethyl Acetate
A
5.00
4.26
0.2222297
0.1893679
-14.8
30
Ethylbenzene
A
5.00
4.19
1.3035
1.092589
-16.2
30
4-Ethyltoluene
A
5.00
4.52
1.35106
1.220387
-9.7
30
Heptane
A
5.00
4.63
0.2538663
0.2350221
-7.4
30
Hexachlorobutadiene
A
5.00
4.61
0.4534028
0.4177833
7.9
30
Hexane
L
5.00
4.14
0.7247281
0.5880712
17.2
30
Page 44 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S038380-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
5.68
0.5773952
0.6557925
13.6
30
Isopropanol
A
5.00
4.16
0.9519529
0.7917608
-16.8
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
3.64
1.693669
1.233665
-27.2
30
Methylene Chloride
A
5.00
4.07
0.8344017
0.6796224
-18.5
30
4-Methyl-2-pentanone (MI13K)
A
5.00
4.53
0.6090632
0.5519359
-9.4
30
Naphthalene
A
5.00
5.25
0.867801
0.9108642
5.0
30
Propene
A
5.00
4.43
0.5731432
0.5073774
-11.5
30
Styrene
A
5.00
4.52
0.7315901
0.6611498
-9.6
30
1,1,2,2-Tetrachloroethane
A
5.00
4.19
0.8450692
0.7080445
-16.2
30
Tetrachloroethylene
A
5.00
3.91
0.5221659
0.4080499
-21.9
30
Tetrahydroforan
L
5.00
3.98
0.2482078
0.2174289
-20.4
30
Toluene
A
5.00
4.67
1.011298
0.9447381
-6.6
30
1,2,4-Trichlorobenzene
A
5.00
5.60
0.3578726
0.4008648
12.0
30
1, 1, 1 -Trichloroethane
A
5.00
3.73
0.5954703
0.4446473
-25.3
30
1,1,2-Trichloroethane
A
5.00
4.57
0.3793229
0.3465428
-8.6
30
Trichloroethylene
A
5.00
3.81
0.3789929
0.288515
-23.9
30
Trichlorofluoromethane(Freon 11)
A
5.00
3.81
1.577896
1.201904
-23.8
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
3.68
1.376609
1.014439
-26.3
30
1,2,4-Trimethylbenzene
A
5.00
4.56
1.113301
1.015359
-8.8
30
1,3,5-Trimethylbenzene
A
5.00
4.48
1.154504
1.035675
-10.3
30
Vinyl Acetate
A
5.00
4.45
1.844358
1.643102
-10.9
30
Vinyl Chloride
A
5.00
4.68
0.6859689
0.6427987
-6.3
30
m&p-Xylene
A
10.0
8.75
0.9926933
0.8687458
-12.5
30
o-Xylene
A
5.00
4.42
1.025194
0.9069298
-11.5
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 45 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S038536-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
4.61
1.061501
0.9795258
-7.7
30
Benzene
A
5.00
4.40
0.8735206
0.7679079
-12.1
30
Benzyl chloride
A
5.00
4.98
0.6996465
0.6967293
-0.4
30
Bromodichloromethane
A
5.00
4.57
0.6034027
0.5515337
-8.6
30
Bromoform
A
5.00
4.82
0.5598351
0.5402057
-3.5
30
Bromomethane
L
5.00
5.29
0.7671881
0.6359568
5.8
30
1,3-Butadiene
A
5.00
4.45
0.5165437
0.4601881
-10.9
30
2-Butanone (MEK)
A
5.00
4.24
1.510652
1.280722
-15.2
30
Carbon Disulfide
A
5.00
4.51
1.951102
1.760717
-9.8
30
Carbon Tetrachloride
A
5.00
4.48
0.4907439
0.4400573
-10.3
30
Chlorobenzene
A
5.00
4.47
0.7671143
0.6855176
-10.6
30
Chloroethane
A
5.00
5.14
0.3286624
0.3382
2.9
30
Chloroform
A
5.00
4.55
1.338096
1.216499
-9.1
30
Chloromethane
L
5.00
4.97
0.7600805
0.6119043
-0.6
30
Cyclohexane
A
5.00
4.59
0.3968377
0.3640598
-8.3
30
Dibromochloromethane
A
5.00
4.69
0.6131759
0.5754599
-6.2
30
1,2-Dibromoethane (EDB)
A
5.00
4.78
0.5188831
0.4956067
-4.5
30
1,2-Dichlorobenzene
A
5.00
4.92
0.5529051
0.5440054
-1.6
30
1,3-Dichlorobenzene
A
5.00
4.84
0.6156422
0.5964186
-3.1
30
1,4-Dichlorobenzene
A
5.00
4.77
0.6222462
0.5936266
-4.6
30
Dichlorodifluoromethane (Freon 12)
A
5.00
4.81
1.496329
1.438465
-3.9
30
1,1-Dichloroethane
A
5.00
4.54
1.161609
1.055259
-9.2
30
1,2-Dichloroethane
A
5.00
4.74
0.7744181
0.7335972
-5.3
30
1,1-Dichloroethylene
A
5.00
4.46
0.9609644
0.8563232
-10.9
30
cis-1,2-Dichloroethylene
A
5.00
4.66
0.8593978
0.8003632
-6.9
30
trans-1,2-Dichloroethylene
A
5.00
4.55
0.9369909
0.8529179
-9.0
30
1,2-Dichloropropane
A
5.00
4.56
0.3089133
0.2816979
-8.8
30
cis-1,3-Dichloropropene
A
5.00
4.75
0.5065485
0.481287
-5.0
30
trans- l,3-Dichloropropene
A
5.00
5.06
0.3948445
0.3995435
1.2
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.40
1.85497
1.632668
-12.0
30
1,4-Dioxane
A
5.00
5.16
0.1503196
0.1550677
3.2
30
Ethanol
L
5.00
5.25
0.2361095
0.2210247
5.0
30
Ethyl Acetate
A
5.00
4.86
0.2359238
0.229413
-2.8
30
Ethylbenzene
A
5.00
4.59
1.254903
1.151294
-8.3
30
4-Ethyltoluene
A
5.00
4.70
1.170616
1.099217
-6.1
30
Heptane
A
5.00
4.50
0.2735238
0.2460827
-10.0
30
Hexachlorobutadiene
A
5.00
4.94
0.3591407
0.3550581
-1.1
30
Hexane
L
5.00
5.16
0.492452
0.4145916
3.1
30
Page 46 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S038536-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
4.51
0.7409122
0.6682925
-9.8
30
Isopropanol
L
5.00
5.13
1.490308
1.227872
2.6
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.45
1.846042
1.644234
-10.9
30
Methylene Chloride
A
5.00
4.38
0.8402594
0.7354247
-12.5
30
4-Methyl-2-pentanone (MI13K)
A
5.00
4.63
0.7161798
0.6632925
-7.4
30
Naphthalene
A
5.00
5.71
0.6049938
0.6905783
14.1
30
Propene
A
5.00
4.31
0.5842939
0.5039005
-13.8
30
Styrene
A
5.00
4.92
0.6473158
0.6375759
-1.5
30
1,1,2,2-Tetrachloroethane
A
5.00
4.67
0.7674959
0.7167078
-6.6
30
Tetrachloroethylene
A
5.00
4.51
0.4931961
0.4452585
-9.7
30
Tetrahydroforan
A
5.00
4.42
0.8848512
0.7817024
-11.7
30
Toluene
A
5.00
4.54
0.9917029
0.9011506
-9.1
30
1,2,4-Trichlorobenzene
A
5.00
5.82
0.2985806
0.3474037
16.4
30
1, 1, 1 -Trichloroethane
A
5.00
4.44
0.4929082
0.4375155
-11.2
30
1,1,2-Trichloroethane
A
5.00
4.74
0.3379477
0.3203436
-5.2
30
Trichloroethylene
A
5.00
4.43
0.357385
0.3167725
11.4
30
Trichlorofluoromethane(Freon 11)
A
5.00
4.52
1.428406
1.290268
-9.7
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.57
1.290004
1.179154
-8.6
30
1,2,4-Trimethylbenzene
A
5.00
4.70
0.8903904
0.8371182
-6.0
30
1,3,5-Trimethylbenzene
A
5.00
4.54
0.9344044
0.8492716
-9.1
30
Vinyl Acetate
A
5.00
4.42
1.947711
1.721648
-11.6
30
Vinyl Chloride
A
5.00
4.54
0.6970639
0.632631
-9.2
30
m&p-Xylene
A
10.0
9.21
0.9303396
0.856601
-7.9
30
o-Xylene
A
5.00
4.57
0.9311699
0.8512595
-8.6
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 47 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S038583-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
4.12
1.061501
0.8753942
-17.5
30
Benzene
A
5.00
4.08
0.8735206
0.7128959
-18.4
30
Benzyl chloride
A
5.00
4.60
0.6996465
0.6430892
-8.1
30
Bromodichloromethane
A
5.00
4.28
0.6034027
0.5171019
-14.3
30
Bromoform
A
5.00
4.66
0.5598351
0.5220092
-6.8
30
Bromomethane
L
5.00
4.83
0.7671881
0.5831327
-3.4
30
1,3-Butadiene
A
5.00
4.04
0.5165437
0.4174787
-19.2
30
2-Butanone(MEK)
A
5.00
3.85
1.510652
1.164023
-22.9
30
Carbon Disulfide
A
5.00
4.44
1.951102
1.733508
-11.2
30
Carbon Tetrachloride
A
5.00
4.26
0.4907439
0.4178447
-14.9
30
Chlorobenzene
A
5.00
4.28
0.7671143
0.6561213
-14.5
30
Chloroethane
A
5.00
4.63
0.3286624
0.304631
-7.3
30
Chloroform
A
5.00
4.28
1.338096
1.14659
-14.3
30
Chloromethane
L
5.00
4.49
0.7600805
0.5531678
-10.2
30
Cyclohexane
A
5.00
4.28
0.3968377
0.3397796
-14.4
30
Dibromochloromethane
A
5.00
4.50
0.6131759
0.5523878
-9.9
30
1,2-Dibromoethane(EDB)
A
5.00
4.56
0.5188831
0.473055
-8.8
30
1,2-Dichlorobenzene
A
5.00
4.65
0.5529051
0.5144615
-7.0
30
1,3-Dichlorobenzene
A
5.00
4.62
0.6156422
0.5686384
-7.6
30
1,4-Dichlorobenzene
A
5.00
4.53
0.6222462
0.5640032
-9.4
30
Dichlorodifluoromethane (Freon 12)
A
5.00
4.46
1.496329
1.334172
-10.8
30
1,1-Dichloroethane
A
5.00
4.16
1.161609
0.9675719
-16.7
30
1,2-Dichloroethane
A
5.00
4.36
0.7744181
0.6748234
-12.9
30
1,1-Dichloroethylene
A
5.00
4.57
0.9609644
0.8787225
-8.6
30
cis-1,2-Dichloroethylene
A
5.00
4.29
0.8593978
0.7380916
-14.1
30
trans-1,2-Dichloroethylene
A
5.00
4.21
0.9369909
0.7886554
-15.8
30
1,2-Dichloropropane
A
5.00
4.17
0.3089133
0.2574935
-16.6
30
cis-1,3-Dichloropropene
A
5.00
4.42
0.5065485
0.4481365
-11.5
30
trans- l,3-Dichloropropene
A
5.00
4.73
0.3948445
0.3733757
-5.4
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.07
1.85497
1.510775
-18.6
30
1,4-Dioxane
A
5.00
4.85
0.1503196
0.1457502
-3.0
30
Ethanol
L
5.00
4.97
0.2361095
0.2100889
-0.6
30
Ethyl Acetate
A
5.00
4.36
0.2359238
0.2055835
-12.9
30
Ethylbenzene
A
5.00
4.39
1.254903
1.102337
-12.2
30
4-Ethyltoluene
A
5.00
4.47
1.170616
1.046309
-10.6
30
Heptane
A
5.00
4.10
0.2735238
0.224092
-18.1
30
Hexachlorobutadiene
4
5.00
4.72
0.3591407
0.3391996
-5.6
30
Hexane
L
5.00
4.60
0.492452
0.372303
-8.1
30
Page 48 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S038583-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone(MBK)
A
5.00
4.06
0.7409122
0.6021171
-18.7
30
Isopropanol
L
5.00
4.60
1.490308
1.105879
-8.0
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
4.16
1.846042
1.536052
-16.8
30
Methylene Chloride
A
5.00
3.91
0.8402594
0.6575324
-21.7
30
4-Methyl-2-pentanone (MI13K)
A
5.00
4.13
0.7161798
0.5912571
-17.4
30
Naphthalene
A
5.00
4.97
0.6049938
0.6011397
-0.6
30
Propene
A
5.00
3.79
0.5842939
0.4425424
-24.3
30
Styrene
A
5.00
4.70
0.6473158
0.608801
-5.9
30
1,1,2,2-Tetrachloroethane
A
5.00
4.37
0.7674959
0.6706442
-12.6
30
Tetrachloroethylene
A
5.00
4.36
0.4931961
0.4302614
-12.8
30
Tetrahydrofiran
A
5.00
3.98
0.8848512
0.7052753
-20.3
30
Toluene
A
5.00
4.30
0.9917029
0.8533353
-14.0
30
1,2,4-Trichlorobenzene
A
5.00
5.29
0.2985806
0.316043
5.8
30
1, 1, 1 -Trichloroethane
A
5.00
4.21
0.4929082
0.4150551
-15.8
30
1,1,2-Trichloroethane
A
5.00
4.48
0.3379477
0.3026703
-10.4
30
Trichloroethylene
A
5.00
4.22
0.357385
0.3014132
15.7
30
Trichlorofluoromethane (Freon 11)
A
5.00
4.10
1.428406
1.171177
-18.0
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.39
1.290004
1.132313
-12.2
30
1,2,4-Trimethylbenzene
A
5.00
4.49
0.8903904
0.7990547
-10.3
30
1,3,5-Trimethylbenzene
A
5.00
4.32
0.9344044
0.808187
-13.5
30
Vinyl Acetate
A
5.00
3.95
1.947711
1.540162
-20.9
30
Vinyl Chloride
A
5.00
4.14
0.6970639
0.576811
-17.3
30
m&p-Xylene
A
10.0
8.73
0.9303396
0.8124644
-12.7
30
o-Xylene
A
5.00
4.31
0.9311699
0.803379
-13.7
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 49 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S039169-CCV 1
COMPOUND
TYPE.
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
Acetone
A
5.00
4.68
1.061501
0.9925812
-6.5
30
Benzene
A
5.00
4.26
0.8735206
0.7451739
-14.7
30
Benzyl chloride
A
5.00
5.62
0.6996465
0.7868396
12.5
30
Bromodichloromethane
A
5.00
4.48
0.6034027
0.5409863
-10.3
30
Bromoform
A
5.00
5.18
0.5598351
0.580241
3.6
30
Bromomethane
L
5.00
5.48
0.7671881
0.6574535
9.6
30
1,3-Butadiene
A
5.00
4.38
0.5165437
0.4520032
-12.5
30
2-Butanone (MEK)
A
5.00
4.36
1.510652
1.317023
-12.8
30
Carbon Disulfide
A
5.00
4.58
1.951102
1.785999
-8.5
30
Carbon Tetrachloride
A
5.00
4.55
0.4907439
0.44666
-9.0
30
Chlorobenzene
A
5.00
4.70
0.7671143
0.7203699
-6.1
30
Chloroethane
A
5.00
5.09
0.3286624
0.3344014
1.7
30
Chloroform
A
5.00
5.30
1.338096
1.417197
5.9
30
Chloromethane
L
5.00
5.16
0.7600805
0.6349001
3.1
30
Cyclohexane
A
5.00
4.49
0.3968377
0.3561091
-10.3
30
Dibromochloromethane
A
5.00
4.93
0.6131759
0.6046712
-1.4
30
1,2-Dibromoethane (EDB)
A
5.00
5.06
0.5188831
0.5250671
1.2
30
1,2-Dichlorobenzene
A
5.00
5.52
0.5529051
0.60997
10.3
30
1,3-Dichlorobenzene
A
5.00
5.53
0.6156422
0.6811792
10.6
30
1,4-Dichlorobenzene
A
5.00
5.44
0.6222462
0.6764744
8.7
30
Dichlorodifluoromethane (Freon 12)
A
5.00
5.43
1.496329
1.625043
8.6
30
1,1-Dichloroethane
A
5.00
4.99
1.161609
1.159523
-0.2
30
1,2-Dichloroethane
A
5.00
5.24
0.7744181
0.8119977
4.9
30
1,1-Dichloroethylene
A
5.00
4.53
0.9609644
0.8701035
-9.5
30
cis-1,2-Dichloroethylene
A
5.00
5.16
0.8593978
0.8872106
3.2
30
trans-1,2-Dichloroethylene
A
5.00
4.98
0.9369909
0.9341745
-0.3
30
1,2-Dichloropropane
A
5.00
4.26
0.3089133
0.263142
-14.8
30
cis-1,3-Dichloropropene
A
5.00
4.60
0.5065485
0.4658135
-8.0
30
trans- l,3-Dichloropropene
A
5.00
4.91
0.3948445
0.3880491
-1.7
30
1,2-Dichloro- 1, 1,2,2-tetrafluoroethane (Freon 1
A
5.00
4.90
1.85497
1.819269
-1.9
30
1,4-Dioxane
A
5.00
4.39
0.1503196
0.1320472
-12.2
30
Ethanol
L
5.00
3.35
0.2361095
0.1471785
-33.1
30
Ethyl Acetate
A
5.00
5.05
0.2359238
0.2384299
1.1
30
Ethylbenzene
A
5.00
4.76
1.254903
1.195297
-4.7
30
4-Ethyltoluene
A
5.00
5.09
1.170616
1.19097
1.7
30
Heptane
A
5.00
4.06
0.2735238
0.222079
-18.8
30
Hexachlorobutadiene
4
5.00
6.18
0.3591407
0.4435594
23.5
30
Hexane
L
5.00
5.23
0.492452
0.4204345
4.6
30
Page 50 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
CONTINUING CALIBRATION CHECK
EPA TO-15
S039169-CCV 1
COMPOUND
TYPE
CONC. (ppbv)
RESPONSE FACTOR
% DIFF / DRIFT
STD
CCV
ICAL
CCV
MIN (#)
CCV
LIMIT (#)
2-Hexanone (MBK)
A
5.00
3.63
0.7409122
0.5375727
-27.4
30
Isopropanol
L
5.00
3.87
1.490308
0.93793
-22.7
30
Methyl tert-Butyl Ether (MTBE)
A
5.00
5.05
1.846042
1.865071
1.0
30
Methylene Chloride
A
5.00
4.52
0.8402594
0.7589442
-9.7
30
4-Methyl-2-pentanone (MI13K)
A
5.00
3.67
0.7161798
0.5263028
-26.5
30
Naphthalene
A
5.00
6.84
0.6049938
0.8273658
36.8
30
Propene
A
5.00
4.37
0.5842939
0.5102127
-12.7
30
Styrene
A
5.00
5.24
0.6473158
0.6781786
4.8
30
1,1,2,2-Tetrachloroethane
A
5.00
4.64
0.7674959
0.7129203
-7.1
30
Tetrachloroethylene
A
5.00
5.00
0.4931961
0.4933867
0.04
30
Tetrahydroforan
A
5.00
4.44
0.8848512
0.7852116
-11.3
30
Toluene
A
5.00
4.72
0.9917029
0.9368117
-5.5
30
1,2,4-Trichlorobenzene
A
5.00
7.06
0.2985806
0.4214404
41.1
30
1, 1, 1 -Trichloroethane
A
5.00
4.50
0.4929082
0.4430824
-10.1
30
1,1,2-Trichloroethane
A
5.00
4.92
0.3379477
0.3328473
-1.5
30
Trichloroethylene
A
5.00
4.64
0.357385
0.331649
7.2
30
Trichlorofluoromethane(Freon 11)
A
5.00
4.71
1.428406
1.345376
-5.8
30
1,1,2-Trichloro-1,2,2-trifluoroethane (Freon 11
A
5.00
4.87
1.290004
1.257123
-2.5
30
1,2,4-Trimethylbenzene
A
5.00
5.12
0.8903904
0.9120693
2.4
30
1,3,5-Trimethylbenzene
A
5.00
4.90
0.9344044
0.915625
-2.0
30
Vinyl Acetate
A
5.00
4.51
1.947711
1.757947
-9.7
30
Vinyl Chloride
A
5.00
4.67
0.6970639
0.6506792
-6.7
30
m&p-Xylene
A
10.0
9.48
0.9303396
0.8818004
-5.2
30
o-Xylene
A
5.00
4.77
0.9311699
0.8891308
-4.5
30
# Column to be used to flag Response Factor and %Diff/Drift values with an asterisk
* Values outside of QC limits
Page 51 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte
EPA TO-15 in Air
Acetone
Benzene
Benzyl chloride
Bromodichloromethane
Bromoform
Bromomethane
1,3-Butadiene
2-Butanone (MEK)
Carbon Disulfide
Carbon Tetrachloride
Chlorobenzene
Chloroethane
Chloroform
Chloromethane
Cyclohexane
Dibromochloromethane
1,2-Dibromoethane (EDB)
1,2-Dichlorobenzene
1,3-Dichlorobenzene
1,4-Dichlorobenzene
Dichlorodifluoromethane (Freon 12)
1,1-Dichloroethane
1,2-Dichloroethane
1,1-Dichloroethylene
cis-1,2-Dichloroethylene
trans- l,2-Dichloro ethylene
1,2-Dichloropropane
cis- 1,3 -Dichloropropene
trans- 1, 3 -Dichloropropene
1,2-Dichloro-1,1,2,2-tetrafluoroethane (Freon 114)
1,4-Dioxane
Ethanol
Ethyl Acetate
Ethylbenzene
4-Ethyltoluene
Heptane
Hexachlorobutadiene
Hexane
2-Hexanone (MBK)
Isopropanol
Methyl tart -Butyl Ether (MTBE)
Methylene Chloride
4-Methyl-2-pentanone (MIBK)
Naphthalene
Propene
Styrene
1,1,2,2-Tetrachloroethane
Certifications
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,Nf E,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH,VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NY,ME,NH
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,NJ
AIHA,NJ,NY,ME,NH,VA
AIHA,NJ,NY,ME,NH,VA
AIHA, FL,NJ,NY,ME,NH, VA
AIHA
AIHA,NY,ME,NH
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH
NY,ME,NH
AIHA
AIHA,FL,NJ,NY,ME,NH, VA
AIHA,FL,NJ,NY,ME,NH, VA
Page 52 of 56

icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte Certifications
EPA TO-15 in Air
Tetrachloroethylene
AIHA,FL,NJ,NY,ME,NH,VA
Tetrahydrofuran
AIHA
Toluene
AIHA,FL,NJ,NYM E,NH,VA
1,2,4-Trichlorobenzene
AIHA,NJ,NY,ME,NH,VA
1, 1, 1 -Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VA
1,1,2-Trichloroethane
AIHA,FL,NJ,NY,ME,NH,VA
Trichloroethylene
AIHA,FL,NJ,NY,ME,NH,VA
Trichlorofluoromethane (Freon 11)
AIHA,NY,ME,NH
1,1,2-Trichloro-1,2,2-trifluoroethane
(Freon 113)
AIHA,NJ,NY,ME,NH,VA
1,2,4-Trimethylbenzene
AIHA,NJ,NY,ME,NH
1,3,5-Trimethylbenzene
AIHA,NJ,NY,ME,NH
Vinyl Acetate
AIHA,FLNJ,NY,ME,NH,VA
Vinyl Chloride
AIHA,FLNJ,NY,ME,NH,VA
m&p-Xylene
AIHA,FL,NJ,NY,ME,NH,VA
o-Xylene
AIHA,FL,NJ,NY,ME,NH,VA
The CON -TEST Environmental
Laboratory operates under the following certifications and accreditations:
Code
Description
Number
Expires
AIHA
AIHA-LAP, LLC - ISO17025:2005
100033
03/l/2020
MA
Massachusetts DEP
M-MA100
06/30/2020
CT
Connecticut Department of Publilc Health
PH-0567
09/30/2019
NY
New York State Department of Health
10899 NELAP
04/l/2020
NH-S
New Hampshire Environmental Lab
2516 NELAP
02/5/2020
RI
Rhode Island Department of Health
LA000112
12/30/2019
NC
North Carolina Div. of Water Quality
652
12/31/2019
NJ
New Jersey DEP
MA007 NELAP
06/30/2020
FL
Florida Department of Health
E871027 NELAP
06/30/2020
VT
Vermont Department of Health Lead Laboratory
LL015036
07/30/2020
ME
State of Maine
2011028
06/9/2021
VA
Commonwealth of Virginia
460217
12/14/2019
NH-P
New Hampshire Environmental Lab
2557 NELAP
09/6/2019
VT-DW
Vermont Department of Health Drinking
Water
VT-255716
06/12/2020
NC-DW
North Carolina Department of Health
25703
07/31/2020
PA
Commonwealth of Pennsylvania DEP
68-05812
06/30/2020
Page 53 of 56

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Page 54 of 56

7/22/2019 Track your package or shipment with FedEx Tracking
775778456420 `�3
Delivered
Monday 7 /22/2019 at 12:46 pm
FROM
Paleigh, NC US
Multiple -piece Shipment
DELIVERED
Signed for by: MKKKGK
GET STATUS UPDATES
OBTAIN! PROOF OF DELIVERY
4 Piece shipment
775778456420
DURHAM, NC
7/18/2019
775778456751
DURHAK NC
7/18/2019
775778456832
DURI iAM, NC
7/18/2019
Shipment Facts
TO
East Longineadow, i iA US
7/22/2019
EAST LONGMEADOW, MA
_ .._.. 7/22/2019
W._. -EAST LONGMEADOW MA
7/22/2019
EAST LONGMEADOIAi, MA
TRACKING NUMBER
SERVICE
REFERENCE
775778456420
FedEx Ground
80
MASTER TRACKING NUMBER
WEIGHT
DIMENSIONS
7757 78456556
15 Ibs / b 8 kg,,,
21 x19x14 in.
TOTAL PIECES
TOTAL SHIPMENT WEIGHT
TERMS
4
60 lbs / 27 22 kgs
Third Party
PACKAGING STANDARD TRANSIT SHIP DATE
171
https://www.fedex.com/apps/fedextrack/?action=track&tracknumbers=775778456420&locale=en_US&cntry_code=us Page 55 0f 56

Client
Received By Date
How were the samples In Cooler
received? In Box
Were samples within Temperature y Gun #
Compliance? 2-6°C A By Blank #
Was Custody Seal Intact? �^
Was COC Relinquished ?
Are there any loose caps/valves on any samples?
Is COC in ink/ Legible? F
On Ice
Ambient
Time
No Ice
Melted Ice
Actual Temp -
Actual Temp -
Were Samples Tampered with?�
Does Chain Agree With Samples?
Did COC Include all Client T— Analysis T
Pertinent Information? Project F ID's j
Are Sample Labels filled out and legible? —F
Are there Rushes? I Who was notified?
Sampler Name
Collection DateslTimes T
Samples are received within holding time? [
Proper Media Used? j Individually Certified Cans?
Are there Trip Blanks? Is there enough Volume?
T3
L
Summa Cans-toL
Nut/Ferrule
IC Train
Tedlar Baqs
Tubing
TO-17 Tubes
T-Connector
Radiello
Syringe
Pufs/TO-11 s
Tedlar
Comments:
Page 56 of 56 1

APPENDIX C
DEQ RISK SUMMARY SHEETS
Mid Atlantic

Air
ersion Date: May 2019
asis: May 2019 EPA RSL Table
teID: 22048-18-032
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Soil Gas
Concentration
s
(ug/m)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Cone. for
Carcinogens @
TCR=1E-06
Target Indoor Air
Cone. for Non-
Carcinogens @
THQ=0.2
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
150
1.5
2.7E+04
1.1E-05
71-43-2
Benzene
79
0.79
1.6E+00
2.6E+01
5.0E-07
6.0E-03
75-15-0
Carbon Disulfide
89
0.89
6.1E+02
2.9E-04
100-41-4
Eth lbenzene
120
1.2
4.9E+00
8.8E+02
2.4E-07
2.7E-04
142-82-5
Heptane, N-
710
7.1
3.5E+02
4.1E-03
110-54-3
Hexane, N-
1300
13
6.1E+02
4.2E-03
67-63-0
Iso ro anol
7.2
0.072
1
1.8E+02
8.2E-05
78-93-3
Methyl Ethyl Ketone (2-Butanone)
45
0.45
4.4E+03
2.1E-05
108-10-1
Methyl Isobutyl Ketone (4-methyl-2-pentanone)
57
0.57
2.6E+03
4.3E-05
91-20-3
-Naphthalene
2.4
0.024
3.6E-01
2.6E+00
6.7E-08
1.8E-03
115-07-1
Propylene
1800
18
-
2.6E+03
1.4E-03
100-42-5
Styrene
9.8
0.098
8.8E+02
2.2E-05
127-18-4
Tetrachloroeth lene
3.5
0.035
4.7E+01
3.5E+01
7.4E-10
2.0E-04
108-88-3
Toluene
320
3.2
4.4E+03
1.5E-04
120-82-1
Trichlorobenzene, 1,2,4-
2.5
0.025
1.8E+00
2.9E-03
75-69-4
Trichlorofluoromethane
0.81
0.0081
95-63-6
Trimeth lbenzene, 1,2,4-
57
0.57
5.3E+01
2.2E-03
108-67-8
Trimeth lbenzene, 1,3,5-
20
0.2
5.3E+01
7.6E-04
1330-20-7
X lens
690
6.9
8.8E+01
1.6E-02
Cumulative: I 8.1E-07 I 4.0E-02
North Carolina DEQ Risk Calculator

Air
ersion Date: May 2019
asis: May 2019 EPA RSL Table
teID: 22048-18-032
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
All concentrations are in ug/m3
Soil Gas
Calculated
Target Indoor
Target Indoor Air
Calculated
Calculated
Non -
CAS #
Chemical Name:
Concentration
Indoor Air
Concentration
Air Cone. for
Cone. for Non-
Carcinogenic
Carcinogenic
s
Carcinogens @
Carcinogens @
(ug/m)
(ug/m3)
TCR=1E-06
THQ=0.2
Risk
Hazard
Quotient
142-82-5
Heptane, N-
130000
1300
3.5E+02
7.4E-01
110-54-3
i Hexane, N-
120000
1200
6.1E+02
3.9E-Ol
Cumulative: I 0.0E+00 I 1.1E+00
North Carolina DEQ Risk Calculator

Air
ersion Date: May 2019
asis: May 2019 EPA RSL Table
teID: 22048-18-032
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Since these chemicals do not pose a vapor intrusion
risk, no risk values are calculated for these chemicals.
All concentrations are in ug/m3
CAS #
Chemical Name:
Soil Gas
Concentration
s
(ug/m)
Calculated
Indoor Air
Concentration
(ug/m3)
Target Indoor
Air Cone. for
Carcinogens @
TCR=1E-06
Target Indoor Air
Cone. for Non-
Carcinogens @
THQ=0.2
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
120
1.2
2.7E+04
8.8E-06
71-43-2
Benzene
46
0.46
1.6E+00
2.6E+01
2.9E-07
3.5E-03
75-15-0
Carbon Disulfide
83
0.83
6.1E+02
2.7E-04
67-66-3
Chloroform
52
0.52
5.3E-01
8.6E+01
9.8E-07
1.2E-03
100-41-4
Eth lbenzene
32
0.32
4.9E+00
8.8E+02
6.5E-08
7.3E-05
142-82-5
Heptane, N-
61
0.61
3.5E+02
3.5E-04
110-54-3
Hexane, N-
240
2.4
6.1E+02
7.8E-04
67-63-0
Iso ro anol
5.3
0.053
1.8E+02
6.1E-05
78-93-3
Methyl Ethyl Ketone (2-Butanone)
35
0.35
4.4E+03
1.6E-05
108-10-1
Methyl Isobutyl Ketone (4-methyl-2-pentanone)
30
0.3
2.6E+03
2.3E-05
91-20-3
-Naphthalene
2.5
0.025
3.6E-01
2.6E+00
6.9E-08
1.9E-03
115-07-1
Propylene
700
7
2.6E+03
5.3E-04
100-42-5
Styrene
5
0.05
8.8E+02
1.1E-05
127-18-4
Tetrachloroeth lene
1.9
0.019
4.7E+01
3.5E+01
4.0E-10
1.1E-04
108-88-3
Toluene
250
2.5
4.4E+03
1.1E-04
75-69-4
Trichlorofluoromethane
1.2
0.012
95-63-6
Trimeth lbenzene, 1,2,4-
25
0.25
5.3E+01
9.5E-04
108-67-8
Trimeth lbenzene, 1,3,5-
9.6
0.096
5.3E+01
3.7E-04
1330-20-7
X lens
158
1.58
8.8E+01
3.6E-03
Cumulative: I 1.4E-06 I 1.4E-02
North Carolina DEQ Risk Calculator

DEQ Risk Calculator - Vapor Intrusion - Non -Residential Worker Indoor Air r
Version Date: May 2019
Mav 2019 EPA RSL Table
Site ID: 22048-18-032
Exposure Unit ID: 4 (
** - Note that the EPA has no consensus on reference dose or cancer slope factor values for lead, therefore it is not possible to calculate carcinogenic risk
or hazard quotient. Lead concentrations are compared to the National Ambient Air Quality Standard of 0.15 µg/m3.
Carcinogenic risk and hazard quotient cells highlighted in orange are associated with non-volatile chemicals. Risks are calculated for these values if
indoor air concentrations are entered and indoor air screening levels have been established, but it should be noted that detections of these chemicals are
likely not associated with vapor intrusion.
All concentrations are in u¢/m3
CAS #
Chemical Name:
Indoor Air
Concentration
3
(ug/m)
Target Indoor
Air Cone. for
Carcinogens @
TCR = 1E-06
Target Indoor Air
Cone. for Non -
Carcinogens @
THQ = 0.2
Calculated
Carcinogenic
Risk
Calculated
Non -
Carcinogenic
Hazard
Quotient
67-64-1
Acetone
73
2.7E+04
5.4E-04
71-43-2
Benzene
0.31
1.6E+00
2.6E+01
2.0E-07
2.4E-03
56-23-5
Carbon Tetrachloride
0.43
2.0E+00
8.8E+01
2.1E-07
9.8E-04
67-66-3
Chloroform
0.83
5.3E-01
8.6E+01
1.6E-06
1.9E-03
74-87-3
Chloromethane
1.5
7.9E+01
3.8E-03
75-71-8
Dichlorodifluoromethane
1.9
8.8E+01
4.3E-03
107-06-2
Dichloroethane, 1,2-
3.4
4.7E-01
6.1E+00
7.2E-06
1.1E-01
141-78-6
Ethyl Acetate
2.7
6.1E+01
8.8E-03
100-41-4
Ethylbenzene
1.1
4.9E+00
8.8E+02
2.2E-07
2.5E-04
142-82-5
Heptane, N-
0.99
3.5E+02
5.7E-04
67-63-0
Isopropanol
420
1.8E+02
4.8E-01
78-93-3
Methyl Ethyl Ketone (2-Butanone)
5.5
4.4E+03
2.5E-04
108-10-1
Methyl Isobutyl Ketone (4-methyl-2-pentanone)
1.3
2.6E+03
9.9E-05
75-09-2
Methylene Chloride
0.49
1.2E+03
5.3E+02
4.0E-10
1.9E-04
91-20-3
-Naphthalene
1.2
3.6E-01
2.6E+00
3.3E-06
9.1E-02
100-42-5
Styrene
1.1
8.8E+02
2.5E-04
127-18-4
Tetrachloroethylene
0.19
4.7E+01
3.5E+01
4.0E-09
1.1E-03
108-88-3
Toluene
2.5
4.4E+03
1.1E-04
76-13-1
Trichloro-1,2,2-trifluoroethane, 1,1,2-
0.41
4.4E+03
1.9E-05
79-01-6
Trichloroethylene
0.15
3.0E+00
1.8E+00
5.0E-08
1.7E-02
75-69-4
Trichlorofluoromethane
1
108-67-8
Trimethylbenzene, 1,3,5-
0.21
5.3E+01
8.0E-04
1330-20-7
Xylenes
4.6
8.8E+01
1.1E-02
Cumulative: I 1.3E-05 7.4E-01
North Carolina DEQ Risk Calculator