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PHASE II ENVIRONMENTAL
SITE ASSESSMENT REPORT
1.21 ACRE COMMERCIAL TRACT
437 & 441 NORTH HARRINGTON STREET
RALEIGH, NORTH CAROLINA
Prepared For:
Mr. Gregg Sandreuter
Hamilton-Merritt, Inc.
104 Lake Cliff Court
Cary, North Carolina 27513
Prepared By:
Mid-Atlantic Associates, Inc.
409 Rogers View Court
Raleigh, North Carolina 27610
Mid-Atlantic Job No. 000R2444.01
February 21, 2013
TABLE OF CONTENTS
1.0 INTRODUCTION.....................................................................................................1
2.0 SUMMARY OF SAMPLING ACTIVITIES...............................................................1
2.1 Soil Sampling Activities ....................................................................................1
2.2 Groundwater Sampling Activities .....................................................................2
3.0 SUMMARY OF LABORATORY TEST RESULTS..................................................2
4.0 CONCLUSIONS AND RECOMMENDATIONS.......................................................2
DRAWINGS
Drawing 1 Topographic Site Map
Drawing 2 Soil Boring and Temporary Monitoring Well Location Map
TABLE
Table 1 Soil Sample Field Screening Results and Monitoring Well Details
APPENDICES
Appendix A Soil Boring Logs
Appendix B Laboratory Analytical Report and Chain-of-Custody Record
1.0 INTRODUCTION
In accordance with proposal No. P13R-6449, dated January 31, 2013, Mid-Atlantic
Associates, Inc. (Mid-Atlantic) has prepared this Phase II Environmental Site
Assessment Report for the properties located at 437 & 441 North Harrington Street in
Raleigh, North Carolina (Drawing 1). This work was conducted based on the initial
findings of a Phase I Environmental Site Assessment (Mid-Atlantic’s Phase I
Environmental Site Assessment Report dated January 28, 2013), which identified
recognized environmental conditions (RECs) associated with multiple documented
releases and/or potential historical release sources adjacent to and in the vicinity of the
subject site. The objective of our scope of services was to assess the site for indications
of gross (wide-spread) environmental contamination associated with the off-site RECs.
2.0 SUMMARY OF SAMPLING ACTIVITIES
2.1 Soil Sampling Activities
On February 8, 2013, Mid-Atlantic mobilized to the site to oversee the advancement of
two soil borings and installation of two temporary groundwater monitoring wells. Soil
boring and temporary well installation services were provided by Quantex, Inc. of Raleigh,
North Carolina.
Sampling locations were placed on the eastern portion of each parcel of the subject site
(Drawing 2) to assess if the documented off-site releases and historical operations at
surrounding properties have impacted groundwater quality at the subject site.
Using a GeoProbe “macrocore” sampling device and direct push technology (DPT),
continuous soil samples were scanned for the presence of volatile organic compounds
(VOCs) using a toxic vapor analyzer (TVA), which utilizes a flame ionization detector
(FID). Mid-Atlantic observed elevated FID readings from the soil samples scanned from
SB-1 (Table 1). The elevated FID readings were detected in a layer of fill material
extending approximately 7.5 feet below the land surface and are most likely attributable to
the debris and decaying organic matter observed in the fill material. We did not observe
visual or olfactory evidence of environmental contamination in this fill material. Due to the
lack of potential on-site sources of contamination cited in the Phase I Environmental Site
Assessment report and the fact that no evidence of environmental contamination was
observed during these field activities, soil samples were not submitted for laboratory
analysis from the two soil borings. In general, the lithology at the site consisted of fine
sandy clays and silty fine sands. Soil boring logs are provided in Appendix A.
Phase II Environmental Site Assessment Report February 21, 2013
437 & 441 North Harrington Street Page 2
Raleigh, North Carolina
2.2 Groundwater Sampling Activities
On February 8, 2013, Quantex, Inc., under Mid-Atlantic’s supervision, constructed two
temporary monitoring wells (TMW-1 and TMW-2) in soil borings SB-1 and SB-2, as
shown on Drawing 2. The wells were constructed using 1-inch diameter Schedule 40
PVC casing and installed such that the well screen intersected the water table at the
time of construction. Groundwater was encountered at depths averaging approximately
12.5 feet below the top of casing elevations, or approximately 10.5 feet below land
surface.
Upon completion, the wells were developed and sampled using new, dedicated disposable
polyethylene bailers. The samples were decanted into laboratory-supplied containers,
packed into an ice-filled cooler and shipped under chain-of-custody to Prism Laboratories,
Inc. in Charlotte, North Carolina. Both groundwater samples were analyzed for VOCs
according to EPA Method 6200B. The groundwater sample at SB-1/TMW-1 was also
analyzed for semi-volatile organic compounds (SVOCs) according to EPA Method 625
(base neutrals and acid extractables). The groundwater sample from SB-2/TMW-2 was
not analyzed for SVOCs due to the well’s slow groundwater recharge rate (SVOC testing
required comparatively large quantities of groundwater for analysis). Upon completion of
sampling activities, each well was abandoned by removing the well casing from the
subsurface and filling the boring with bentonite chips.
3.0 SUMMARY OF LABORATORY TEST RESULTS
The laboratory analytical report and chain-of-custody record for the groundwater samples
collected at the site are provided in Appendix B. As documented, the groundwater
samples collected from the on-site temporary monitoring wells did not exhibit target
compounds at concentrations exceeding the laboratory reporting limit.
4.0 CONCLUSIONS AND RECOMMENDATIONS
Based on these results, it does not appear that the documented off-site releases and
nearby historical operations have resulted in an adverse environmental impact to the
subject site at this time based on the data collected. As such, no further assessment or
remedial actions are recommended.
DRAWINGS
TABLE
Sample ID Depth Below Land
Surface (ft)OVA Results (ppm) Technician Comment Temporary Well Details
0.0' - 5.0' 46.84
5.0' - 7.5' 19.60
7.5' - 10.0' 5.47
10.0' - 12.5' 9.80
12.5' - 15.0'1.24
0.0' - 2.5'-
2.5' - 5.0'0.04
5.0' - 7.5'0.26
7.5' - 10.0'0.29
10.0' - 12.5'0.62
Notes:
TVA - Toxic Vapor Analyzer
DTW - Depth to Water Below Land Surface
(ppm) - Parts per Million
MID-ATLANTIC JOB NO. 000R2444.01
1" PVC Temporary Well Set at
14.5' BLS, Screened from 4.5'
to 14.5' BLS. DTW = 9.54'
1" PVC Temporary Well Set at
12.5' BLS, Screened from 2.5'
to 12.5' BLS. DTW = 11.87'
SB-1
No Odors
No Odors
SB-2
TABLE 1
SOIL SAMPLE FIELD SCREENING RESULTS AND MONITORING WELL DETAILS
437 & 441 NORTH HARRINGTON STREET
RALEIGH, NORTH CAROLINA
FIELD WORK CONDUCTED FEBRUARY 8, 2013
1.21 ACRE COMMERCIAL TRACT
APPENDIX A
SOIL BORING LOGS
ft
-
b
g
s
Odors
FI
D
R
e
a
d
i
n
g
(
p
p
m
)
Re
c
o
v
e
r
y
SOIL DESCRIPTION (color, texture, moisture, etc.)Construction Deatails
Installed Type II temporary monitoring well (TMW-1) to 14.5 feet BLS
Notes:
Depth-to-water measured at 11.74 feet below top of casing on 2/8/2013
COMMENTS:in - indicates inches N/A - indicates not applicable to this boring TVA - Toxic Vapor Analyzer
ft - indicates depth in feet ppm - indicates parts per million FID - Flame Ionization Detector
ft BLS - indicates feet below land surface DPT - Direct Push Technology PWR - Partially Weathered Rock
9.80
1.24
46.84
19.60
5.47
18 18
Probe refusal at 15.0 feet BLS
16 16
Top of Casing Elev. (ft):
Screen: 4.5'-
14.5'
Tan and gray silty clayey fine sand - SM
409 Rogers View Court
Raleigh, NC 27610
Ph: 919-250-9918
Quantex, Inc.Subcontractor/Drillers: Raleigh, NC
Site Name:
Project Number:Macrocore
Location:
Drilling/Boring Method:
4
Date Started:
2/8/2013
437 & 441 North
Harrington Street
R2444.01 Sampling Method:
12
14
2
2/8/2013
Date Completed:
8
10
6
Dark gray fine sandy clay (FILL) - CL
Reddish brown fine sandy micaceous silt - MH
ft
-
B
L
S
8
10
12
14
6
2
4
Page: 1
Monitoring Equipment:
Driller :
NA
Geoprobe DPT
of
Total Boring Depth (ft):
NA
15.0
SB-1/TMW-1LOG OF BORING:
W. Blaylock
Longitude:
Geologist/Engineer:TVA / FID
1
Stephen
NALatitude:
ft
-
b
g
s
Odors
FI
D
R
e
a
d
i
n
g
(
p
p
m
)
Re
c
o
v
e
r
y
SOIL DESCRIPTION (color, texture, moisture, etc.)Construction Deatails
12
Installed Type II temporary monitoring well (TMW-2) to 12.5 feet BLS
Notes:
Depth-to-water measured at 12.97 feet below top of casing on 2/8/2013
COMMENTS:in - indicates inches N/A - indicates not applicable to this boring TVA - Toxic Vapor Analyzer
ft - indicates depth in feet ppm - indicates parts per million FID - Flame Ionization Detector
ft BLS - indicates feet below land surface DPT - Direct Push Technology PWR - Partially Weathered Rock
Probe refusal at 12.5 feet BLS
12
0.04
0.26
0.29
0.62
Gray fine sandy silt - ML
Gray silty fine sand - SM
SB-2/TMW-2LOG OF BORING:
W. Blaylock
Longitude:
Geologist/Engineer:TVA / FID
1
Stephen
12.5
Top of Casing Elev. (ft):
NALatitude:
NA
ft
-
B
L
S
10
8
Screen: 2.5'-
12.5'
Mottled red & brown fine sandy clay (FILL) - CL
of
Total Boring Depth (ft):
409 Rogers View Court
Raleigh, NC 27610
Ph: 919-250-9918
Quantex, Inc.Subcontractor/Drillers:
Macrocore
Geoprobe DPT
Page: 1
NA
Raleigh, NC
Project Number:
437 & 441 North
Harrington Street
R2444.01 Sampling Method:
Drilling/Boring Method:
Location:
Site Name:
14
1616
14
8
10
2
4
6
Driller :
2/8/2013
2/8/2013Date Started:
Date Completed:
6
2
4
Monitoring Equipment:
APPENDIX B
LABORATORY ANALYTICAL REPORT AND
CHAIN-OF-CUSTODY RECORD
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