49.4841-L Seaboard Station - Cr VI Confirmation Soil Sampling Summary Letter Report_12.7.2020

ECS SOUTHEAST, L L P "Setting the Standard for Service"
Geotechnical • Construction Materials • Environmental • Facilities NC Registered Engineering Firm F-1D78
NC Registered ueologims Firm C-5S3
SC Registered Engineering Firm 3239
December 7, 2020
Mr. Brad Atkinson
North Carolina Department of Environmental Quality
Division of Waste Management
Brownfields Program
1646 Mail Service Center
Raleigh, North Carolina 27699-1646
Reference: Confirmation In -Situ Soil Assessment (Block B) Letter Report
Seaboard Station
18 Seaboard Avenue and 721 Halifax Street
Raleigh, Wake County, North Carolina
Brownfields Project No. 22075-18-092
ECS Project No. 49:4841-L
Dear Mr. Atkinson:
ECS Southeast, LLP (ECS) is pleased to present the results of our Environmental Assessment for the
above -referenced site (Figures 1 and 2). ECS's additional services were provided in accordance with the
Seaboard Station Block B In -Situ Assessment Work Plan Revision No. 0.0 dated May 30, 2020 and
approved on June 8, 2020. This environmental assessment was performed following approval by the
North Carolina Department of Environmental Quality (NCDEQ) Division of Waste Management (DWM)
Brownfields Program (the Program). Included in this report is a description of the field activities, the results
obtained, and our conclusions and recommendations.
On November 18, 2020, ECS contracted with Quantex, LLC (Quantex), a North Carolina Certified Well
Contractor (NCCWC) based out of Wendell, North Carolina, to conduct the drilling activities for the soil
sample collection using a direct push technology (DPT) track mounted drill rig. Three borings, B-1
through B-3, were advanced to a total depth of 15 feet below ground surface (bgs). Representative soil
samples were then collected from the 5-foot interval from 10 to 15 feet bgs from each of the three soil
borings within the Block B cell identified as Area 1. Figure 3 has been included as an In -Situ Sample
Boring Location Map (Block B). The three representative soil samples collected from the 10 to 15-foot
depth horizon interval of each boring were composited by gently mixing the three representative
samples together, resulting in the collection of one representative composite soil sample for laboratory
analysis. The composited sample was collected into laboratory supplied/preserved containers. In
addition, one duplicate sample, identified as DUP-7, was collected for Quality Assurance/Quality Control
(QA/QC) purposes. Following collection, the confirmation soil sample, identified as 131-3R, and its
duplicate, identified as DUP-7, were placed within an ice chilled cooler for courier transportation to the
North Carolina certified laboratory to be analyzed for hexavalent chromium (Cr VI) by EPA Method 7199.
Borings were abandoned by the NC Certified Well Contractor upon completion in accordance with North
Carolina Administrative Code (NCAC) 2C standards.
Laboratory analysis of B1-3R did not report Cr VI at concentrations above its laboratory Method
Detection Limit (MDL). A summary of confirmation soil analytical results for Block B are summarized on
ECS Capitol Services, PLLC • ECS Florida, LLC • ECS Mid -Atlantic. LLC • ECS Midwest. LLC • ECS Southeast, LLP • ECS Southwest, LLP
www.ecsiimited.com

Confirmation In -Situ Soil Assessment Letter Report
Seaboard Station
Brownfield Project No. 22075-18-092
ECS Project No. 49-4841-L
Table 1. The laboratory analytical report and a copy of the Chain of Custody (COC) are included as
attachments.
Based on this summary report's findings, ECS concludes that the previous representative composite soil
sample, identified as 131-3 and collected on June 26, 2020, with a reported estimated concentration of Cr
VI above its Residential Preliminary Soil Remediation Goal (PSRG), has been sufficiently re -assessed via
the collection and analysis of confirmation soil sample identified as B1-3R. Cr VI concentrations in both
confirmation soil sample B1-3R and its duplicate (DUP-7), have been reported to be below the
laboratory's Method Detection Limit (MDL) of 0.255 milligrams per Kilogram (mg/Kg).
Based upon these results ECS believes that excess fill from Block B Area 1 grading and construction
activities be beneficially re -used at NCDEQ approved off -site commercial/industrial locations, other
brownfields sites, and municipal solid waste (MSW), construction/demolition (C&D), or land clearing/inert
debris (LCID) landfills.
ECS appreciates the opportunity to provide our environmental consulting services to you on this project. If
you have any questions concerning this report or this project, please contact us.
Sincerely,
ECS SOUTHEAST, LLP
Samantha M.QStaka its, G.I.T.
Assistant Staff Project Manager
[e-mail]
[phone]
Attachments — Figures 1-3
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Scott M. Werley, P.G\ /
Principal Geologist U
NC License No. 2354
[e-mail]
[phone]
Table 1: Summary of Soil Analytical Results
Soil Boring Logs
Photodocumentation Log
Laboratory Analytical Report and Chain of Custody
cc: Mr. Rob Steward, Hoffman & Associates, 11 West Franklin St. Raleigh, NC 27604
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2019 RALEIGH, WAKE COUNTY, NC
BROWN FIELDS # 22075-18-092
SCALE 1:24,000 Tll ECS PROJECT: 49:4841-L

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FIGURE 2
BROWNFIELD PARCEL LOCATION MAP:
SEABOARD STATION -BLOCK B
RALEIGH, WAKE COUNTY, NC
BROWN FIELDS # 22075-18-092
ECS PROJECT NO 49:4841-L

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s SOURCE:
WAKE COUNTY GIS
AERIAL PHOTO DATE: 2018
TM
FIGURE 3
IN -SITU SAMPLE BORING LOCATION MAP
(BLOCK B):
SEABOARD STATION -BLOCK B
RALEIGH, WAKE COUNTY, NC
BROWNFIELDS NO. 22075-18-092
ECS PROJECT NO. 49:4841-L

TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS
Seaboard Station - Block B Confirmation Sampling
Seaboard Ave., Raleigh, Wake County, North Carolina
North Carolina Brownfields Project No. 22075-18-092
ECS Proiect No. 49-4841-L
Sample Identification
131-1
131-2
131-3
B1-3R
DUP-7
131-4
132-1
132-2
132-3
DUP-5
132-4
133-1
133-2
133-3
133-4
133-5
IHSB Residential Health
Based PSRG
IHSB
Industrial/Commercial
Health Based
PSRG
Sample Date
6/26/2020
11/18/2020
6/26/2020
6/24/2020
Sample Depth (feet)
0-5
5-10
10-15
10-15
10-15
15-20
0-5
5-10
10-15
10-15
15-20
0-5
5-10
10-15
15-20
20-25
Detected VOCs by EPA 8260
Acetone
0.029 J
0.021 J
0.13 J
ivA
NA
0.075 J
0.093
0.026 J
0.072 J
0.25
0.055 J
0.044 J
0.040 J
0.10 J
0.057 J
0.059 J
12,000
140,000
2-Butanone (MEK)
<0.0058
<0.0061
<0.0073
NA
NA
<0.0067
<0.0048
<0.0059
<0.0054
0.050 J
<0.0057
<0.0054
<0.0064
0.011 J
<0.0073
<0.0073
5,500
40,000
Naphthalene
<0.00042
<0.00044
<0.00053
NA
NA
<0.00048
<0.00035
<0.00043
<0.00039
<0.00057
<0.00042
<0.0039
<0.00046
<0.00050
<0.00053
<0.00053
4.1
18
tert-Butyl Alcohol (TBA)
<0.0047
<0.0050
<0.0060
NA
NA
<0.0054
<0.0039
<0.0048
<0.0044
<0.0064
<0.0047
<0.0044
<0.0052
<0.0056
<0.0060
<0.0060
NS
NS
Methylene Chloride
<0.0011
<0.0011
<0.0013
NA
NA
<0.0012
<0.00088
<0.0011
<0.00098
<0.0014
<0.0010
<0.00098
<0.0012
<0.0012
<0.0013
<0.0013
58
650
Detected SVOCs by EPA 8270
Fluoranthene
<0.12
<0.12
<0.11
NA
NA
<0.11
<0.12
<0.13
<0.12
<0.12
<0.11
<0.12
<0.12
<0.11
<0.11
<0.11
480
6,000
RCRA-8 Metals by EPA Method 6020/7471/7199
Arsenic
1.3
0.54
<0.13
NA
NA
<0.13
2.4
2.7
0.87
<0.14
0.43
1.6
1.3
0.53
0.17 J
0.32
0.68
3.0
Barium
61
86
80
NA
NA
100
52
52
120
94
120
27
69
94
110
100
3,100
47,000
Cadmium
<0.058
<0.057
<0.052
NA
NA
<0.053
-0.054
<0.058
<0.057
<0.056
<0.055
0.073 J
0.058 J
<0.053
0.061 J
0.17 J
14
200
Chromium (III) as Total
15
15
35
NA
NA
38
14
16
12
29
12
18
12
8.4
7.8
20
23,000
350,000
Chromium (VI)
NA
-1
0.661 J
<0.255
<0.255
<0.255
NA
NA
NA
<0.255
NA
NA
NA
NA
NA
NA
0.31
6.5
Lead
13
11
9.8
NA
NA
12
27
17
14
11
8.3
12
14
9.7
8.7
10
400
800
Selenium
<0.42
<0.41
<0.38
NA
NA
<0.39
<0.39
<0.42
<0.41
<0.40
<0.39
0.52 J
0.61 J
<0.38
<0.38
0.52 J
78
1,200
Silver
0.054 J
<0.037
0.035 J
NA
NA
<0.034
0.060 J
0.066 J
0.039 J
<0.036
<0.035
<0.035
<0.037
<0.034
<0.034
<0.034
78
1,200
Mercury
0.066
0.015 J
0.032
NA
NA
0.013 J
0.055
0.046
0.015 J
0.029 J
0.022 J
0.028
0.012 J
<0.0081
<0.0085
<0.0087
2.3
9.7
Notes:
DUP-7 = Duplicate of B1-3R
DUP-5 = Duplicate of 62-3
Page 1 of 5

TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS
Seaboard Station - Block B Confirmation Sampling
Seaboard Ave., Raleigh, Wake County, North Carolina
North Carolina Brownfields Project No. 22075-18-092
ECS Proiect No. 49-4841-L
Sample Identification
133-6
134-1
134-2
134-3
134-4
134-5
B5-1
135-2
135-3
135-4
135-5
135-6
136-1
136-2
136-3
136-4
IHSB Residential Health
Based PSRG
IHSB
Industrial/Commercial
Health Based
PSRG
Sample Date
6/24/2020
6/26/2020
6/24/2020
6/29/2020
Sample Depth (feet)
25-30
0-5
5-10
10-15
15-20
20-25
0-5
5-10
10-15
15-20
20-25
25-30
0-5
5-10
10-15
15-20
Detected VOCs by EPA 8260
Acetone
0.047 J
0.016 J
0.032 J
0.065 J
0.077 J
0.074 J
0.027 J
0.024 J
0.024 J
0.064 J
0.061 J
0.026 J
0.012 J
0.018 J
0.041 J
0.029 J
120,000
1,400,000
2-Butanone (MEK)
<0.0070
<0.0059
<0.0067
<0.0093
<0.0083
<0.0057
<0.0068
<0.0064
<0.0070
0.011 J
<0.0072
<0.0063
<0.0063
<0.0064
<0.0076
<0.0081
5,500
40,000
Naphthalene
<0.00051
<0.0043
<0.00049
<0.00067
<0.00060
0.00043 J
<0.00049
<0.00046
<0.00051
<0.00052
<0.00052
<0.00046
<0.00046
<0.00047
<0.00055
<0.00059
4.1
18
tert-Butyl Alcohol (TBA)
<0.0057
<0.0048
<0.0055
<0.0076
<0.0068
<0.0047
<0.0055
0.040 J
<0.0057
<0.0058
<0.0059
<0.0052
<0.0051
<0.0052
<0.0062
<0.0066
NS
NS
Methylene Chloride
<0.0013
<0.0011
<0.0012
<0.0017
<0.0015
<0.0010
<0.0012
<0.0012
<0.0013
<0.0013
<0.0013
<0.0012
0.0035 J
<0.0012
0.0067 J
0.0085 J
58
650
Detected SVOCs by EPA 8270
Fluoranthene
<0.12
0.12 J
<0.12
<0.16
<0.15
<0.11
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
480
6,000
RCRA-8 Metals by EPA Method 6020/7471/7199
Arsenic
0.28
1.6
0.95
0.86
0.22 J
0.15 J
1.5
0.90
0.42
0.17 J
0.13 J
0.16 J
1.6
0.48
0.20
<0.13
0.68
3.0
Barium
110
57
43
87
100
120
27
58
88
65
65
83
71
69
95
90
3,100
47,000
Cadmium
0.13 J
<0.055
<0.05-
<0.054
0.059 J
<0.057
0.073 J
0.065 J
0.091 J
0.12 J
<0.054
<0.054
14
200
Chromium (III) as Total
10
6.8
5.9
6.4 J
3.7 J
3.1
19
13
21
3.4 J
11
15
11
8.3
4.6 J
4.4 J
23,000
350,000
Chromium (VI)
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.31
6.5
Lead
7.4
35
14
20
9.2
10
15
12
12
7.5
7.8
6.7
15
10
8.0
8.2
400
800
Selenium
0.46 J
<0.39
<0.41
<0.53
<0.49
<0.39
0.86 J
0.55 J
0.47 J
<0.42
<0.39
<0.40
<0.39
<0.40
<0.39
<0.39
78
1,200
Silver
<0.035
0.085 J
<0.036
0.053 J
0.054 J
0.063 J
<0.038
<0.037
<0.035
<0.037
<0.034
<0.035
0.041 J
<0.036
<0.035
0.036 J
78
1,200
Mercury
<0.0092
0.070
<0.0094
<0.012
0.030 J
0.036
0.038
0.013 J
0.0088 J
<0.0093
<0.0089
<0.0087
0.020 J
0.017 J
0.017 J
0.016 J
2.3
9.7
Page 2 of 5

TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS
Seaboard Station - Block B Confirmation Sampling
Seaboard Ave., Raleigh, Wake County, North Carolina
North Carolina Brownfields Project No. 22075-18-092
ECS Proiect No. 49-4841-L
Sample Identification
B-6-5
136-6
137-1
137-2
DUP-6
137-3
137-4
137-5
137-6
137-7
138-1
138-2
138-3
138-4
138-5
138-6
IHSB Residential Health
Based PSRG
IHSB
Industrial/Commercial
Health Based
PSRG
Sample Date
6/29/2020
6/24/2020
Sample Depth (feet)
20-25
25-30
0-5
5-10
5-10
10-15
15-20
20-25
25-30
30-35
0-5
5-10
10-15
15-20
20-25
25-30
Detected VOCs by EPA 8260
Acetone
0.012 J
0.026 J
<0.011
<0.0099
<0.0098
0.011 J
0.017 J
0.014 J
<0.011
0.011 J
0.031 J
0.047 J
0.050 J
0.075 J
0.049 J
0.035 J
120,000
1,400,000
2-Butanone (MEK)
<0.0067
<0.0068
<0.0073
<0.0065
<0.0064
<0.0067
<0.0067
<0.0066
<0.0070
<0.0068
<0.065
<0.0061
<0.0063
<0.0070
0.0077 J
<0.0062
5,500
40,000
Naphthalene
<0.00049
<0.00049
<0.00053
<0.00047
<0.00047
<0.00049
<0.00048
<0.00048
<0.00051
<0.00049
<0.00047
<0.00045
<0.00046
<0.00051
<0.00043
<0.0045
4.1
18
tert-Butyl Alcohol (TBA)
<0.0055
<0.0055
<0.0060
<0.0053
<0.0052
<0.0055
<0.0055
<0.0054
<0.0057
<0.0055
<0.0053
<0.0050
<0.0052
<0.0057
<0.0048
<0.0051
NS
NS
Methylene Chloride
0.0054 J
0.0084 J
0.0063 J
0.0037 J
0.0047 J
0.0057 J
0.0054 J
0.0032 J
0.0067 J
0.0046 J
<0.0012
<0.0011
<0.0012
<0.0013
<0.0011
<0.0011
58
650
Detected SVOCs by EPA 8270
Fluoranthene
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.11
<0.11
<0.12
<0.12
<0.12
<0.12
<0.12
<0.11
<0.11
480
6,000
RCRA-8 Metals by EPA Method 6020/7471/7199
Arsenic
0.13 J
0.18 J
1.1
0.55
0.65
0.19 J
0.17 J
<0.12
<0.12
<0.13
0.95
0.75
0.42
0.26
0.15 J
<0.13
0.68
3.0
Barium
100
76
68
95
98
120
140
150
130
110
31
52
94
110
93
75
3,100
47,000
Cadmium
<0.052
0.073 J
<0.05,'
<0.054
�0.054
<0.050
<0.051
<0.055
<0.057
0.058 J
0.081 J
<0.054
0.073 J
0.072 J
14
200
Chromium (III) as Total
4.2 J
22
11
8.3
8.5
8.3
8.5
9.8
6.9
8.8
7.9
13
14
13
4.4 J
4.7 J
23,000
350,000
Chromium (VI)
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
0.31
6.5
Lead
4.9
6.4
12
13
13
11
7.4
6.7
4.8
5.2
12
15
8.6
9.8
6.3
5.7
400
800
Selenium
<0.38
<0.41
<0.39
<0.41
<0.40
<0.39
<0.39
<0.36
<0.37
<0.39
0.52 J
0.45 J
0.46 J
<0.035
<0.38
<0.38
78
1,200
Silver
<0.033
<0.037
0.077 J
0.050 J
0.059 J
0.054 J
0.048 J
0.073 J
0.052 J
0.049 J
<0.037
<0.037
<0.035
<0.096
<0.034
<0.034
78
1,200
Mercury
0.017 J
0.014 J
0.030
0.011 J
0.027 J
0.013 J
0.0093 J
0.0091 J
<0.0083
<0.0088
<0.0091
<0.0089
<0.0089
1 <0.0086
0.011 J
<0.0083
2.3
9.7
Notes:
DUP-6 = Duplicate of B7-2
Page 3 of 5

TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS
Seaboard Station - Block B Confirmation Sampling
Seaboard Ave., Raleigh, Wake County, North Carolina
North Carolina Brownfields Project No. 22075-18-092
ECS Proiect No. 49-4841-L
Sample Identification
DUP-3
138-7
B9-1
139-2
DUP-4
139-3
139-4
139-5
139-6
B10-1
B10-2
B10-3
B10-4
B10-5
B10-6
B10-7
IHSB Residential Health
Based PSRG
IHSB
Industrial/Commercial
Health Based
PSRG
Sample Date
6/24/2020
6/25/2020
Sample Depth (feet)
25-30
1 30-35
0-5
5-10
5-10
10-15
15-20
20-25
25-30
0-5
5-10
10-15
15-20
20-25
25-30
30-35
Detected VOCs by EPA 8260
Acetone
0.042 J
0.030 J
0.018 J
0.031 J
0.022 J
0.022 J
0.11 J
0.043 J
0.020 J
0.080 J
0.026 J
0.026 J
0.035 J
0.027 J
0.024 J
0.027 J
120,000
1,400,000
2-Butanone (MEK)
<0.0057
<0.0066
<0.0072
<0.0078
<0.0070
<0.0062
0.018 J
<0.0062
<0.0060
<0.0066
<0.0072
<0.0070
<0.0071
<0.0075
<0.0061
<0.0063
5,500
40,000
Naphthalene
<0.00042
<0.00048
<.00052
<0.00057
<0.00051
<0.00045
<0.00047
<0.00045
<0.00044
<0.00048
<0.00053
<0.00051
<0.00052
<0.00055
<0.00044
<0.00046
4.1
18
tert-Butyl Alcohol (TBA)
<0.0047
<0.0054
<0.0059
<0.0064
<0.0058
<0.0051
<0.047
<0.0051
<0.0049
<0.0054
<0.0059
<0.0057
<0.0058
<0.0062
<0.0050
<0.0051
NS
NS
Methylene Chloride
<0.0010
<0.0012
0.0027 J
0.0036 J
0.0021 J
0.0024 J
0.0030 J
0.0033 J
<0.0011
0.0020 J
0.0026 J
0.0036 J
0.0034 J
0.0032 J
0.0028 J
0.0040 J
58
650
Detected SVOCs by EPA 8270
Fluoranthene
<0.11
<0.12
<0.12
<0.14
<0.12
<0.11
<0.11
<0.11
<0.12
<0.13
<0.13
<0.12
<0.13
<0.13
<0.11
<0.12
480
6,000
RCRA-8 Metals by EPA Method 6020/7471/7199
Arsenic
<0.13
0.15 J
0.76
0.62
0.40
0.37
0.12 J
<0.12
<0.13
1.1
0.46
0.16 J
<0.15
<0.15
<0.13
<0.14
0.68
3.0
Barium
72
84
90
110
160
87
71
74
67
23
35
48
78
65
67
64
3,100
47,000
Cadmium
0.062 J
0.080 J
0.069 J
0.099 J
0.12 J
0.089 J
0.090 J
0.090 J
0.11 J
0.069 J
0.063 J
<0.058
0.088 J
0.11 J
0.12 J
0.16 J
14
200
Chromium (III) as Total
4.4 J
6.1
58
13
28
19
23
8.0
6.7
7.5
5.1 J
4.0 J
5.7
4.5 J
3.6 J
17
23,000
350,000
Chromium (VI)
NA
-
<0.255
NA
<0.255
NA
<0.255
NA
NA
N
NA
NA
NA
NA
NA
0.31
6.5
Lead
4.8
7.0
20
15
11
9.7
7.2
5.3
5.3
23
10
8.0
9.6
8.2
5.7
6.1
400
800
Selenium
<0.39
<0.40
<0.39
<0.46
<0.42
<0.37
<0.37
<0.37
<0.39
<0.44
<0.44
<0.42
<0.43
<0.45
<0.38
<0.41
78
1,200
Silver
<0.034
<0.035
<0.035
<0.041
<0.037
<0.033
<0.033
<0.033
<0.035
<0.039
<0.039
<0.037
<0.039
<0.040
<0.034
<0.036
78
1,200
Mercury
<0.0085
<0.0087
0.016 J
<0.011
<0.0089
<0.0080
<0.0077
<0.0086
<0.0088
0.047
<0.0097
<0.0092
<0.0097
<0.0098
<0.0087
<0.0086
2.3
9.7
Notes:
DUP-3 = Duplicate of B8-6
DUP-4 = Duplicate of B9-2
Page 4 of 5

TABLE 1: SUMMARY OF SOIL ANALYTICAL RESULTS
Seaboard Station - Block B Confirmation Sampling
Seaboard Ave., Raleigh, Wake County, North Carolina
North Carolina Brownfields Project No. 22075-18-092
ECS Project No. 49-4841-L
Sample Identification
B11-1
B11-2
B11-3
B11-4
B11-5
DUP-2
B11-6
B11-7
B12-1
B12-2
B12-3
B12-4
B12-5
B12-6
B12-7
B13-1
IHSB Residential Health
Based PSRG
IHSB
Industrial/Commercial
Health Based
PSRG
Sample Date
6/23/2020
Sample Depth (feet)
0-5
5-10
10-15
15-20
20-25
20-25
25-30
30-35
0-5
5-10
10-15
15-20
20-25
25-30
30-35
0-5
Detected VOCs by EPA 8260
Acetone
0.030 J
0.064 J
0.084 J
0.037 J
0.088 J
0.024 J
0.093 J
0.065 J
0.034 J
0.024 J
0.093 J
0.023 J
0.028 J
0.031 J
0.072 J
0.014 J
120,000
1,400,000
2-Butanone (MEK)
<0.0064
<0.0064
<0.0066
<0.0064
<0.0075
<0.0072
<0.0070
<0.0059
<0.0061
<0.0063
<0.0066
<0.0060
<0.0065
<0.0064
<0.0059
<0.0057
5,500
40,000
Naphthalene
<0.00047
<0.00047
<0.00048
<0.00047
<0.00054
<0.00053
<0.00051
<0.00043
<0.00044
<0.00045
<0.00048
<0.00043
<0.00047
<0.00046
<0.00043
<0.00042
4.1
18
tert-Butyl Alcohol (TBA)
<0.0052
<0.0053
<0.0054
<0.0053
<0.0061
<0.0059
<0.0058
<0.0049
<0.0050
<0.0051
<0.0054
<0.0049
<0.0053
<0.0052
<0.0048
<0.0047
NS
NS
Methylene Chloride
<0.0012
<0.0012
<0.0012
<0.0012
<0.0014
<0.0013
<0.0013
<0.011
<0.0011
<0.0011
<0.0012
<0.0011
<0.0012
<0.0012
T <0.0011
<0.0010
58
650
Detected SVOCs by EPA 8270
Fluoranthene
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.12
<0.13
480
6,000
RCRA-8 Metals by EPA Method 6020/7471/7199
Arsenic
0.84
0.62
0.25
<0.13
<0.13
<0.14
<0.14
0.22
0.35
0.25
0.14 J
0.14 J
0.14 J
<0.13
<0.13
0.97
0.68
3.0
Barium
49
100
130
110
98
110
89
81
15
52
81
67
99
97
77
48
3,100
47,000
Cadmium
<0.056
<0.055
<0.05/'
<0.056
<0.056
<0.056
<0.054
<0.055
<0.054
0.090 J
0.086 J
<0.053
<0.055
<0.060
14
200
Chromium (III) as Total
12
6.5
8.8
9.1
8.2
6.9
11
10
4.7 J
6.5
6.2
15
9.6
5.8
5.6
12
23,000
350,000
Chromium (VI)
-
NA
NA
NA
NA
NA
NA
NA
NA
NA
�A
NA
NA
NA
0.31
6.5
Lead
11
11
8.0
9.2
8.8
8.6
6.2
6.7
8.6
24
21
9.3
9.1
8.1
5.6
13
400
800
Selenium
<0.40
<0.40
<0.39
<0.40
<0.40
<0.40
<0.40
<0.40
<0.39
<0.40
<0.39
<0.39
<0.39
<0.38
<0.40
<0.43
78
1,200
Silver
0.048 J
0.037 J
<0.035
0.044 J
0.050 J
0.050 J
0.045 J
0.041 J
<0.035
<0.036
<0.035
<0.035
<0.035
<0.034
<0.036
<0.038
78
1,200
Mercury
0.017 J
0.010 J
0.0093 J
0.043
0.015 J
0.016 J
0.015 J
0.013 J
<0.0085
1 0.018 J
0.0086 J
0.0099 J
<0.0088
1 <0.0085
1 <0.0087
0.017 J
2.3
9.7
Notes:
DUP-2 = Duplicate of B11-5
North Carolina Department of Environmental Quality (NCDEQ) Preliminary Soil Remediation Goals (PSRGs), December 2019 Version
Results reported in mg/Kg = milligrams per kilogram = ppm (parts per million)
IHSB = Inactive Hazardous Sites Branch
BOLD = Concentration Exceeds Residential PSRG
Results denoted with a J are below the reporting limit but above the method's detection limit and are estimated results
NA = Not Analyzed
MDL = Method detection limit
Less than results are referenced to the MDLs listed in the associated analytical laboratory results
Page 5 of 5

Soil Boring 131
Client: Hoffman & Associates
Sample Method: Macro -Core
Logged By: Samantha M. Szakasits
Project: Seaboard Station
Driller: Quintex
Coordinates: ?
Location: 18 Seaboard Avenue, Raleigh, NC 27604
Sample Method: Direct Push
Groundwater Depth: NA
Date: November 18, 2020
Sampler: Macro -Core
Groundwater Date: NA
rn
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Ground Surface
Asphalt
Red -brown clayey silt with dark mottles
2
Light gray to red sand with gravel
4
6
8
Light gray to red weathered material
1
1
1.6 ppm
1
End of Boring at 15' BGS
1
1
2
2
2
2
2
3
EE
Notes:
1. USCS = Unified Soil Classification System
2. BGS =Below Ground Surface
Project
49-4841-L1-L
Page 1 of 1
File name: C:\Users\pnutb\AppData\Local\Temp\AcPublish_15704\Logs.dwg

Soil Boring B2
Client: Hoffman & Associates
Sample Method: Macro -Core
Logged By: Samantha M. Szakasits
Project: Seaboard Station
Driller: Quintex
Coordinates: ?
Location: 18 Seaboard Avenue, Raleigh, NC 27604
Sample Method: Direct Push
Groundwater Depth: NA
Date: November 18, 2020
Sampler: Macro -Core
Groundwater Date: NA
rn
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Description
to
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Ground Surface
Asphalt
Yellowish -red clayey silt
2
Brownish red sandy silt, micaceous
4
6
Brownish -red sandy silt with dark mottles, micaceous
8
1
1
4.2 ppm
1
End of Boring at 15' BGS
1
1
2
2
2
2
2
3
EE
Notes:
1. USCS = Unified Soil Classification System
2. BGS =Below Ground Surface
Project
49-4841-L1-L
Page 1 of 1
File name: C:\Users\pnutb\AppData\Local\Temp\AcPublish_15704\Logs.dwg

Soil Boring B3
Client: Hoffman & Associates
Driller: Quintex
Logged By: Samantha M. Szakasits
Project: Seaboard Station
Drill Rig: GeoProbe
Coordinates: ?
Location: 18 Seaboard Avenue, Raleigh, NC 27604
Sample Method: Direct Push
Groundwater Depth: NA
Date: November 18, 2020
Sampler: Macro -Core
Groundwater Date: NA
rn
rn
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Description
to
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Ground Surface
Asphalt
Red -brown clayey silt with gravel
2
4
Yellowish -red sandy silt, micaceous
6
8
Yellowish -red sandy silt with gravel, micaceous
1
1
1.1 ppm
Yellowish -red sandy silt, micaceous
1
End of Boring at 15' BGS
1
1
2
2
2
2
2
3
EE
Notes:
1. USCS = Unified Soil Classification System
2. BGS =Below Ground Surface
Project
49-4841-L1-L
Page 1 of 1
File name: C:\Users\pnutb\AppData\Local\Temp\AcPublish_15704\Logs.dwg

Photo 1— Soil Boring B-1, Facing Northwest.
Photo 2 — Soil Boring B-2, Facing Southwest.
Seaboard Station — Block B
Photodocumentationrfe! Raleigh, Wake County, NC
Brownfields No. 22075-18-092
ECS Project No. 49:4841-L

Photo 3 — Soil Boring B-3, Facing Southwest.
Photo 4 — Abandonment of Soil Boring B-1.
Seaboard Station — Block B
Photodocumentation Raleigh, Wake County, NC
Brownfields No. 22075-18-092
ECS Project No. 49:4841-L

Photo 5 —Abandonment of Soil Boring B-2.
Photo 6 — Abandonment of Soil Boring B-3.
Seaboard Station — Block B
PhotodocumentationE(C!QS Raleigh, Wake County, NC
Brownfields No. 22075-18-092
ECS Project No. 49:4841-L

icon-tes w .
ANALYTICAL LABORATORY
Table of Contents
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
November 30, 2020
Samantha Szakasits
ECS Southeast - Raleigh, NC
9001 Glenwood Avenue
Raleigh, NC 27617
Project Location: 18 Seaboard Ave, Raleigh, NC
Client Job Number:
Project Number: 49-4841-L
Laboratory Work Order Number: 20K0965
Enclosed are results of analyses for samples received by the laboratory on November 18, 2020. If you have any questions
concerning this report, please feel free to contact me.
Sincerely,
Kerry K. McGee
Project Manager
Page 1 of 10

Table of Contents
Table of Contents
Sample Summary
Hits Only Report
Case Narrative
Sample Results
20K0965-01
20K0965-02
Flag/Qualifier Summary
Certifications
Chain of Custody/Sample Receipt
10
Page 2 of 10

Table of Contents
icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
ECS Southeast - Raleigh, NC
9001 Glenwood Avenue REPORT DATE: 11/30/2020
Raleigh, NC 27617 PURCHASE ORDER NUMBER:
ATTN: Samantha Szakasits
PROJECT NUMBER: 49-4841-L
ANALYTICAL SUMMARY
WORK ORDER NUMBER: 20K0965
The results of analyses performed on the following samples submitted to the CON -TEST Analytical Laboratory are found in this report.
PROJECT LOCATION: 18 Seaboard Ave, Raleigh, NC
FIELD SAMPLE # LAB ID: MATRIX SAMPLE DESCRIPTION TEST SUB LAB
B1-3R 20K0965-01 Soil 7199 CT PH-0 1 97/NY 11742
SM 2540G CT PH-0 1 97/NY 11742
SW-846 CT PH-0 I 97/NY 11742
DUP-7 20K0965-02 Soil 7199 CT PH-0 I 97/NY 11742
SM 2540G CT PH-0 I 97/NY 11742
SW-846 CT PH-0 1 97/NY 11742
Page 3 of 10

Table of Contents
icon-tes w .
ANALYTICAL LABORATORY
39 Spruce Street' East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
EXECUTIVE SUMMARY
Client ID: BWR
Lab ID: 20K0965-01
Analyte
Results/Qual DL RL
Units
Method
% Solids
79.8
% Wt
SM 2540G
Client ID: DUP-7
Lab ID: 20K0965-02
Analyte
Results/Qual DL RL
Units
Method
% Solids
89.7
%Wt
SM 2540G
Con -Test does not accept liability for the consequences of any actions taken solely on the basis of the information provided in the Executive Summary
section of this report. Users must review this report in its entirety to determine data usability and assessment.
Page 4 of 10

icon-tes w .
ANALYTICAL LABORATORY
Table of Contents
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.
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.
Tod E. Kopyscinski
Laboratory Director
Page 5 of 10

Table of Contents
icon-te w
ANALYTICAL LABQRATC]RY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Project Location: 18 Seaboard Ave, Raleigh, NC Sample Description: Work Order: 20K0965
Date Received: 11/18/2020
Field Sample #: Bl-3R Sampled: 11/18/2020 09:27
Sample ID: 20K0965-01
Samnle Matrix: Soil
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total)
Date Date/Time
Analyte Results RL DL Units Dilution Flag/Qual Method Prepared Analyzed Analyst
% Solids 79.8 % Wt 1 SM 2540G 11/28/20 2:20 PAL
Hexavalent Chromium ND 1 0.255 mg/Kg 1 7199 11/24/20 20:10 PAL
Page 6 of 10

Table of Contents
icon-te w
ANALYTICAL LAaORATIDRY
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
Project Location: 18 Seaboard Ave, Raleigh, NC Sample Description: Work Order: 20K0965
Date Received: 11/18/2020
Field Sample #: DUP-7 Sampled: 11/18/2020 09:27
Sample ID: 20K0965-02
Samnle Matrix: Soil
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total)
Date Date/Time
Analyte Results RL DL Units Dilution Flag/Qual Method Prepared Analyzed Analyst
% Solids 89.7 % Wt 1 SM 2540G 11/28/20 2:20 PAL
Hexavalent Chromium ND 1 0.255 mg/Kg 1 7199 11/24/20 20:16 PAL
Page 7 of 10

icon-tes w .
ANALYTICAL LABORATORY
Table of Contents
39 Spruce Street ` East Longmeadow, MA 01028 ` FAX [phone] " TEL. [phone]
FLAG/QUALIFIER SUMMARY
* QC result is outside of established limits.
fi Wide recovery limits established for difficult compound.
$ Wide RPD limits established for difficult compound.
# Data exceeded client recommended or regulatory level
Percent recoveries and relative percent differences (RPDs) are determined by the software using values in the
calculation which have not been rounded.
No results have been blank subtracted unless specified in the case narrative section.
Page 8 of 10

icon-tes w .
ANALYTICAL LABORATORY
Table of Contents
39 Spruce Street ` East Longmeadow, MA 01028 ' FAX [phone] " TEL. [phone]
CERTIFICATIONS
Certified Analyses included in this Report
Analyte Certifications
SW-846 in Soil
Hexavalent Chromium NY,CT,NH,NC,ME,VA
The CON -TEST Environmental Laboratory operates under the following certifications and accreditations:
Code
Description
Number
Expires
AIHA
AIHA-LAP, LLC - ISO17025:2017
100033
03/l/2022
MA
Massachusetts DEP
M-MA100
06/30/2021
CT
Connecticut Department of Publilc Health
PH-0567
09/30/2021
NY
New York State Department of Health
10899 NELAP
04/1/2021
NH-S
New Hampshire Environmental Lab
2516 NELAP
02/5/2021
RI
Rhode Island Department of Health
LA000112
12/30/2020
NC
North Carolina Div. of Water Quality
652
12/31/2020
NJ
New Jersey DEP
MA007 NELAP
06/30/2021
FL
Florida Department of Health
E871027 NELAP
06/30/2021
VT
Vermont Department of Health Lead Laboratory
LL015036
07/30/2021
ME
State of Maine
2011028
06/9/2021
VA
Commonwealth of Virginia
460217
12/14/2020
NH-P
New Hampshire Environmental Lab
2557 NELAP
09/6/2021
VT-DW
Vermont Department of Health Drinking Water
VT-255716
06/12/2021
NC-DW
North Carolina Department of Health
25703
07/31/2021
PA
Commonwealth of Pennsylvania DEP
68-05812
06/30/2021
MI
Dept. of Env, Great Lakes, and Energy
9100
09/6/2021
Page 9 of 10

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