500 W 5TH_Phase II ESA

Engineers who understand your business
PHASE II SUBSURFACE
INVESTIGATION REPORT
500 West 5th Street
Winston-Salem, North Carolina 27101

March 4, 2015
Partner Project Number: 14-131345.4
Prepared for:
Grubb Properties, Inc.
4500 Cameron Valley Parkway, Suite 350
Charlotte, North Carolina 28211

2154 Torrance Boulevard, Suite 200, Torrance, California 90501 ◊ Phone [phone] ◊ Fax [phone]
March 4, 2015
Dan Schumacher
Grubb Properties, Inc.
4500 Cameron Valley Parkway, Suite 350
Charlotte, North Carolina 28211
Subject: Phase II Subsurface Investigation Report
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number: 14-131345.4

Dear Mr. Schumacher:
The following report describes the field activities, methods, and findings of the Phase II Subsurface
Investigation conducted by Partner Engineering North Carolina, PLLC (Partner) at the above-referenced
property. The objectives of the investigation were to:
•Investigate whether underground storage tanks (USTs) related to the former filling station remain
on the subject property;
•Evaluate whether the former filling station on the southwest portion of the subject property has
resulted in impacts by petroleum hydrocarbons to soil and/or groundwater;
•Evaluate the integrity of the 2,000-gallon diesel UST on the east side of the subject property; and,
•Evaluate the integrity of the 2,000-gallon waste oil UST on the east side of the subject property.
Grubb Properties, Inc. approved this scope of work and provided project authorization of Partner Proposal
Number P14-131345.4.
Site Description
The subject property consists of one parcel totaling approximately 2.171 acres. It occupies the block
bound to the north by West 5th Street, to the south by West 4th Street, to the west by Poplar Street
Northwest, and to the east by Spruce Street North. The subject property is located in a mixed
commercial/retail/residential area of downtown Winston-Salem, North Carolina and is currently
developed with an unoccupied office building the south tower of which was constructed in 1951, and the
north tower of which was constructed in 1980. In addition to the structures, the subject property is also
improved with asphalt-paved parking areas and associated landscaping.
The subject property is currently occupied by vacant commercial office buildings. On-site operations
consist of routine building maintenance. The subject property consists of one 21-story building with a
basement (North Tower), one six-story building with a basement (South Tower), and one single-story
building which houses the emergency generator. In addition to the current structures, the subject
property is also improved with landscaping and concrete walkways on the north end, and an asphalt
parking area on the south end
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 2

The subject property is bound by First Baptist Church across West 5th Street to the north; The Lowrey
Building across West 4th Street to the south, the Winston-Salem Journal, an unoccupied historic domicile,
and Chamber Plaza retail building across Spruce Street to the east, and a paved asphalt parking lot and a
concrete parking structure across Poplar Street Northwest to the west. Refer to Figure 1 for a site plan
showing site features and surrounding properties.
Site History
Partner completed a Phase I Environmental Site Assessment (Phase I) Report for the subject property,
dated January 8, 2015, on behalf of Grubb Properties, Inc.
As documented in the Phase I report, according to available historical sources, the subject property was
developed with residential dwellings as early as 1885; developed with residences and a church between
1885 and at least 1917; developed with residential and commercial structures from as early as 1917 to at
least 1969, and developed with the current three structures in 1950, 1980, and 1999 for the South Tower,
North Tower, and Emergency Generator Building, respectively. Tenants on the subject property have
included a filling station (at least 1950 to at least 1957), Integon Insurance (at least 1987 to at least 2008)
and GMAC Insurance (at least 2008 to 2013).
According to the Phase I, the subject property is equipped with one 2,000-gallon diesel fuel UST on its
east side between the north and south tower. The 2,000-gallon UST was installed in 2005 and is
constructed of steel-clad fiberglass reinforced plastic (FRP). The diesel UST provides fuel for the North
Tower emergency generator. Based on the age of the tank and limited additional information regarding
construction and potential leakage, the diesel fuel UST was identified as a recognized environmental
condition.
Historical Sanborn Fire Insurance Maps dated 1950 and 1957 depicted a filling station with four tanks
located on the southwest corner of the subject property. There is no regulatory record of the filling
station or any related environmental investigation. Further, information regarding a monitoring well
located on the southwest portion of the subject property (in the area of the former fill station), associated
with the adjoining western property groundwater investigation (Leaking Underground Storage Tank
(LUST) Incident #8943), indicated naphthalene and bis(2-ethylhexyl)phthalate were detected in
groundwater at the subject property. The on-site well was installed as an up-gradient well for the
adjoining property, and therefore, the naphthalene and bis(2-ethylhexyl)phthalate likely did not originate
at the release associated with the adjoining site. As such, the source of on-site groundwater impacts has
not been identified and is potentially associated with a release from the subject property. The historical
use of the subject property as a gasoline filling station, and the potentially associated groundwater
impacts previously identified on site, were considered recognized environmental conditions where further
investigation was warranted.
The Phase I also identified a 2,000-gallon waste oil UST, designed to contain transformer oil in the event
of a rupture of on-site transformers, that has been located on the east side of the subject property since
approximately 1980. Since this tank is used solely for emergency purposes and is otherwise empty, the
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 3

waste oil UST is considered a de minimis environmental concern. A 12,000-gallon diesel UST, which fuels
the emergency generator for the South Tower, was observed in the south parking lot. This UST was the
subject of recent inspections, which did not reveal any leaks, and therefore was not considered a
recognized environmental condition.
Aside from the three current USTs, two former USTs were also identified. A former 10,000-gallon diesel
UST has been closed in-place on the west side of the subject property, and a former 2,000-gallon diesel
UST was removed when the current 2,000-gallon diesel UST replaced it on the east side of the subject
property. Both of these USTs were the subjects of previous investigations that revealed soil impacts. The
resultant UST Section incidents were closed with a Notice of Residual Petroleum, and are considered a
controlled recognized environmental condition.
Geology and Hydrogeology
According to the Geologic Map of North Carolina (1985), the project site is located within the Milton Belt
Region. The Milton Belt consists of gneisses, schist, and metamorphosed intrusive rocks. The Milton Belt
Region lies in the Piedmont Province which is characterized by gently rolling well rounded hills and long
low ridges with a few feet of elevation difference between the hills and the valleys. More specifically, the
site is underlain by the biotite and gneiss schist. Refer to Figure 2 for a topographic map of the site
vicinity.
According to the Soil and Groundwater Assessment Report prepared for the adjoining Fourth Street
Parking Deck by Aquaterra, Inc. (July 9, 1991), the depth and direction of groundwater in the vicinity of the
subject property was approximately 43-44 feet below ground surface (bgs) and inferred to flow to the
southwest.
Based on borings advanced during this investigation, the upper 20 to 30 feet of the subsurface consists
predominantly of orange silt and silty clay, which is underlain by light brown and mottled purple silt to
medium sand.
Groundwater was not encountered during this investigation, as bedrock refusal occurred between 29 feet
bgs and 37 bgs in the borings drilled. Refer to Appendix A for boring logs from this investigation.
Pre-Field Activities
Prior to the initiation of fieldwork, Partner completed the following activities:
Utility Clearance
Partner notified NC811 to clear public utility lines as required by law at least three business days prior to
drilling activities. NC811 issued ticket number C150351249 for the project.
Field Activities
Refer to Table 1 for a summary of the borings, sampling schedule and laboratory analyses for this
investigation. The scope of the Phase II Subsurface Investigation included a geophysical survey and the
advancement of four borings (B01 through B04) for the collection of representative soil and groundwater
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 4

samples. As bedrock refusal occurred at each boring prior to encountering groundwater, groundwater
samples were not collected.
Underground Storage Tank Tightness Testing
On February 10, 2015, Precision Tank Services, Inc. (PTS) of Cornelius, North Carolina conducted UST
tightness testing under the supervision of Partner. When attempting to test the empty 2,000-gallon waste
oil UST, PTS discovered that the wood and fiberglass lid covering the UST tankhold was installed upside
down, such that the handle designed for removing the lid was inside the tankhold. Additionally, the
condition of the lid was deteriorated to the degree that removing it would result in its destruction.
Because of these conditions, the empty waste oil UST was not tested.
When the 2,000-gallon diesel was inspected by PTS it was found to be double-walled fiberglass, and to
have interstitial spill detection equipment. The spill detection equipment indicated that no release had
occurred. To test the diesel UST, PTS applied a vacuum for eight minutes. The delivery and return lines
were closed at the location of the pumps in the basement of the north tower, so that the underground
portions of the lines would also be subjected to the vacuum and therefore tested along with the UST.
After the eight-minute testing period, the vacuum was undiminished, indicating that neither the UST or
subsurface portions of the lines have been compromised. A copy of the tightness testing report is
included in Appendix B.
Geophysical Survey
On February 10, 2015, KCI Associates of North Carolina, P.A. (KCI) conducted a geophysical survey under
the supervision of Partner. The purpose of the geophysical survey was to identify any USTs remaining in
place and clear boring locations of utilities. The geophysical survey was conducted with electromagnetic
induction (EM) equipment and ground penetrating radar (GPR) unit.

KCI systematically free-traversed the investigation area with the aforementioned equipment. The
equipment data were interpreted in real time and compiled as necessary in order to identify subsurface
anomalies consistent with USTs, disturbed soil resembling utility lines, and/or other subsurface
conduits/features.

The geophysical survey identified several subsurface anomalies in the investigation area that were
consistent with a former building location, but none that appeared to represent a UST. One linear feature,
trending west-east near the south end of the investigation area was interpreted to be either a defunct
utility or product piping.
Health and Safety Plan
Partner reviewed the site-specific Health and Safety Plan with on-site personnel involved in the project
prior to the commencement of drilling activities.
Drilling Equipment
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 5

On February 10, 2015, Partner subcontracted with Probe Technology, Inc. of Concord, North Carolina
(Probe Tech) to provide and operate drilling equipment. Probe-Tech, under the direction of Partner,
advanced borings B01 through B04 with a track-mounted Geoprobe direct push rig. Sampling equipment
was decontaminated between sample intervals and boring locations to prevent cross-contamination.
Boring Locations
Borings B01 through B04 were advanced in the southwest portion of the parking lot on the south end of
the subject property, in the area formerly occupied by a filing station. Boring B01 was advanced near a
subsurface anomaly on the east side of the inferred former filling station building location, and boring
B02 was advanced on the west side of the area inferred to have been occupied by the former filling
station building. Boring B03 was advanced next to the linear feature on the south end of the former filling
station area, and boring B04 was advanced on the southwest corner of the former filling station area, in
the inferred downgradient direction. Refer to Figure 3 for a map depicting boring locations.
Soil Sampling
All borings were overlain by asphalt, which was penetrated using a punch bit attachment advanced by the
direct-push drill rig. Boring B01 was advanced to a terminal depth of 29 feet bgs; boring B02 was
advanced to a terminal depth of 37 feet bgs, boring B03 was advanced to a terminal depth of 27.5 feet
bgs, and boring B04 was advanced to a terminal depth of 36 feet bgs.
Soil samples were collected using a five-foot long by 2.25-inch diameter MacroCore sampler with a five-
foot long polyvinyl chloride (PVC) liner, which was advanced by the direct-push drill rig using five-foot
long by 1.5-inch diameter drill rods. The sampler was driven into the subsurface to allow undisturbed soil
to enter the open MacroCore barrel and retrieved in five-foot intervals to recover the soil-filled liners.

A lengthwise section of each PVC liner was removed with a splitting tool to expose the soil. The soil
column was visually inspected for discoloration, monitored for odors, and classified in accordance with the
Unified Soil Classification System (USCS). The soil column was field-screened at one-foot intervals with a
photoionization detector (PID) calibrated to isobutylene. None of the PID readings suggested the
presence of elevated volatile organics concentrations. Please refer to Appendix A for boring logs.
Soil depths selected for laboratory analysis were sampled directly from the liners using laboratory-
supplied vials and jars. The jars were filled with soil to capacity to minimize headspace and reduce the
potential for volatilization. The jars and vials were labeled for identification and stored in an iced cooler.
In boring SB01, a sample was collected at 6.0 feet bgs, near the inferred base of the subsurface anamoly.
As no elevated PID readings were observed, samples in borings B02, B03, and B04 were collected from
just above the terminal depths, 36.0 feet bgs, 27.0 feet bgs, and 35.0 feet bgs, respectively.
Following sampling activities the boreholes were backfilled with hydrated bentonite chips following
sampling activities. Boreholes advanced in improved areas were capped with asphalt patch to match
existing ground cover after being backfilled.
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 6

No significant amounts of derived wastes were generated during this investigation.
Laboratory Analysis
Partner collected four soil samples on February 10, 2015, which were transported in an iced cooler under
proper chain-of-custody protocol to Pace Analytical Services, Inc. of Charlotte, North Carolina, a North
Carolina state-certified laboratory. The four soil samples were analyzed for total petroleum hydrocarbons
– gasoline range organics (TPH-GRO) in accordance with EPA Method 8015.
Regulatory Agency Guidance
The North Carolina Department of Environment and Natural Resources (NCDENR) Division of Waste
Management, Underground Storage Tank Section (UST Section) has established an Action Level of 10
milligrams per kilogram (mg/kg) for TPH-GRO in soil. Should THP-DRO exceed the Action Level,
additional analyses are required to determine whether a release requiring remediation has occurred.
Laboratory Analytical Results
Laboratory analytical results are included in Appendix C and discussed below.
Soil Sample Analytical Results
None of the analyzed soil samples contained detectable concentrations of TPH-DRO.
Refer to Table 2 for a summary of the soil sample laboratory analysis results.
Discussion
The 2,000-gallon waste oil UST was not tested, due to the access limitations described above. However, as
this UST is empty and has never been used, Partner does not expect that it has adversely impacted the
subject property and no further investigation associated with the 2,000-gallon empty waste oil UST is
warranted.
The 2,000-gallon diesel UST and subsurface portions of associated product and return lines passed
tightness testing, and as such, Partner does not expect that it has adversely affected the subject property.
As such, no further investigation associated with the 2,000-gallon diesel UST is warranted.
During advancement of the soil borings, no visual or olfactory evidence of a release was observed, and
field-screening with a PID did not indicate the presence of VOCs. Additionally, TPH-GRO was not detected
in any of the four soil samples. Coupled with the fact that the geophysical survey did not detect anomalies
indicative of USTs in the former filling station area, Partner does not expect that the former filling station
has adversely affected the subject property, and no further investigation associated with the former filling
station is warranted.
Summary and Conclusions
Partner conducted a Phase II Subsurface Investigation at the subject property to investigate the potential
impact of petroleum hydrocarbons as a consequence of a release or releases from a 2,000-gallon waste
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 7

oil UST, a 2,000-gallon diesel UST, and a former filling station. The scope of the Phase II Subsurface
Investigation included UST tightness testing, a geophysical survey and four soil and borings. Four soil
samples were analyzed for TPH-GRO.
The 2,000-gallon waste oil UST is empty and has never been used and does not pose a threat to the
subject property.
The 2,000-gallon diesel UST and associated subsurface product and return lines passed tightness testing,
indicating that they have not leaked.
The geophysical survey did not identify the presence of USTs and/or excavations and/or anomalies.
Field screening of soil borings did not indicate the presence of a petroleum or VOC release; further, THP-
GRO was not detected in any of the soil borings.
Based on the results of the Subsurface Investigation, there is no evidence of a release of hazardous
materials from the 2,000-gallon diesel UST or former filling station, and Partner recommends no further
investigation with respect to these features at this time.
Limitations
This Report presents a summary of work conducted by Partner. The work includes observations of site
conditions encountered and the analytical results provided by an independent third party laboratory of
samples collected during the course of the project. The number and location of samples were selected to
provide the required information. However, it cannot be assumed that the limited available data are
representative of subsurface conditions in areas not sampled.
Conclusions and/or recommendations are based on the observations, laboratory analyses, and the
governing regulations. Conclusions and/or recommendations beyond those stated and reported herein
should not be inferred from this document.
Partner warrants that the environmental consulting services contained herein were accomplished in
accordance with generally accepted practices in the environmental engineering, geology, and
hydrogeology fields that existed at the time and location of work. No other warranties are implied or
expressed.
Reports, both verbal and written, as they pertain to the property located at 500 West 5th Street in
Winston-Salem, North Carolina, are for the sole use and benefit of Grubb Properties, Inc. This report has
no other purpose and may not be relied upon by another person or entity without the written consent of
Partner.
Signatures of Participating Professionals
Thank you for the opportunity to be of service. If you have questions regarding this investigation, please
contact the undersigned at [phone].
Sincerely,
Phase II Subsurface Investigation
500 West 5th Street
Winston-Salem, North Carolina 27101
Partner Project Number 14-131345.4
March 4, 2015
Page | 8
Michael P. McKenna
Project Manager

Kristine M. MacWilliams, P.E.
Technical Director – Subsurface Investigation
Attachments:
Tables 1. Summary of Investigation Scope
2. Soil Sample TPH Laboratory Results

Figures 1. Site Plan
2. Topographic Map
3. Sample Location Map

Appendices A. Boring Logs
B. UST Tightness Testing Report
C. Laboratory Analytical Reports

TABLES

Table 1: Summary of Investigation Scope
500 West 5th Street
Winston-Salem, North Carolina
Partner Project Number 14-131345.4
February 10, 2015
Boring
Identification Location
Terminal
Depth
(feet bgs)
Matrix
Sampled
Sampling
Depths*
(feet bgs)
Target
Contaminants
B01 Subsurface feature in the
former filling station area 29.0**Soil 6 TPH-GRO
B02 Former filling station area 37.0**Soil 36 TPH-GRO
B03 Linear subsurface feature in
the former filling station area 27.5**Soil 27 TPH-GRO
B04
Southwest (downgradient)
corner of the former filling
station area
36.0**Soil 35 TPH-GRO
Notes:
**Refusal encountered at the terminal depth
bgs = below ground surface
Table 2: Soil Sample TPH-DRO Laboratory Results
500 West 5th Street
Winston-Salem, North Carolina
Partner Project Number 14-131345.4
February 10, 2015
EPA Method
Units
Chemical of Concern Action
Level B01-6.0 B02-36.0 B03-27.0 B04-35.0
TPH-GRO 10 <6.9 <6.8 <7.0 <9.5
Notes:
TPH-GRO = total petroleum hydrocarbons - gasoline range
Action Level = North Carolina Department of Environmenta and Natural Resources Underground
Storage Tank Section TPH-DRO Action Level
mg/kg = milligrams per kilogram
< = not detected above indicated laboratory Practical Quantitation Limit (PQL)
Values in bold exceed one or more regulatory guideline
TPH-GRO via 8015M
(mg/kg)

FIGURES

FIGURE 1:SITE PLAN
Site Address:
www.PARTNEResi.com(800) 419-4923
Project No.14-131345.4
500 West 5th Street
Winston-Salem, North Carolina
Key
Subject Property
Former Filling
Station
Emergency Generator Building
12,000-gal Diesel UST
Parking Ramp601 West 4th Street
Approximate Former Filling
Station Location
Location of Current and
Removed 2,000-gal
Diesel USTs
10,000-gal
Abandoned Diesel UST
2,000-gal
Waste Oil UST
Parking Lot
Winston-Salem Journal/Piedmont Publishing
418 North Marshall St
Commercial411West 4th Street
Vacant
419 North
Spruce Street
West 5th Street
West 4th Street
North
Tower
SouthTower

FIGURE 2: TOPOGRAPHIC MAP

Site Address:
www.PARTNEResi.com [phone]
Project No. 14-131345.4
500 West 5th Street
Winston-Salem, North Carolina

Subject
Property

FIGURE 3:BORING LOCATIONS
Site Address:
www.PARTNEResi.com(800) 419-4923
Project No.14-131345.4
500 West 5th Street
Winston-Salem, North Carolina
Key
Subject PropertySubject Property
Former Filling Station
Emergency Generator Building
12,000-gal Diesel UST
Location of Current and
Removed 2,000-gal
Diesel USTs
10,000-gal
Abandoned Diesel UST
2,000-gal
Waste Oil UST
West 5th Street
West 4th Street
North
Tower
SouthTower
Station
Soil Boring Location
B01
B02
B03
B04

APPENDIX A: BORING LOGS

Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS
1 0.0
2 0.0
3 0.0 CL
4 0.0
5 0.0 ML
6 1 B01-6.0 0.0
7 0.0
8 0.0
9 0.0 ML
10 0.0
11 0.0
12 0.0
13 0.0
14 0.0 SC
15 0.0 CL
16 0.0
17 0.0
18 0.0
19 0.0 SM
20 0.0
21 0.0
22 0.0
5.5'-13.0': Light purple clayey silt. Micaceous. Dry.
15.0'-23.0': Light purple silty fine sand. Micaceous. Dry
13.0'-14.2': Light orange silty fine sand. Dry.
14.2'-15.0': Orange silty clay. Few pebbles. Dry
Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
0.0'-0.5': Asphalt
Description Notes
Boring Number:B01 Page 1 of 1
Location:500 West 5th Street
Drill Rig Type:Direct-Push Partner Engineering and Science
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
4.0'-5.5': Orange silt. Micaceous. Dry.
0.5'-4.0': Orange sandy clay. Micaceous. Dry.
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS
Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104

Description Notes
Boring Number:B01 Page 1 of 1
Location:500 West 5th Street
Drill Rig Type:Direct-Push Partner Engineering and Science
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
23 0.0
24 0.0 SM
25 0.0
26
27 SM
28
29 SM
30
31
32
33
34
35
36
37
38
39
40
28.0'-29.0': Speckled black and gray fine to medium
sand and weathered biotite. Dry
Bottom of Boring: 29.0'

23.0'-25.0': Light brown silty fine to medium sand. Dry
25.0'-28.0': Light orange silty fine to medium sand.
Micaceous. Biotite pebble zones. Dry.
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS
1 0.0
2 0.0 CL
3 0.0 ML
4 0.0
5 0.0
6 0.0
7 0.0
8 0.0
9 0.0
10 0.0
11 0.0 SM
12 0.0
13 0.0
14 0.0
15 0.0
16 0.0
17 0.0
18 0.0
19 0.0
20 0.0
21 0.0 CL
22 0.0
23 0.0
24 0.0
25 0.0
0.5'-2.5': Orange silty clay. Dry.
2.5'-3.5': Orange clayey silt. Dry.
3.5'-18.0': Light purple silty fine sand. Micaceous. Dry.
Interbedded light orange weathered biotite-rich granite
from 15.0'-18.0'.
18.0'-24.5': Purple-, light orange-, and black-mottled
clayey silt to fine sand. Dry.

0.0'-0.5': Asphalt
Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample Description Notes
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
Boring Number:B02 Page 1 of 1
Location:500 West 5th Street
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
Drill Rig Type:Direct-Push Partner Engineering and Science
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS

Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample Description Notes
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
Boring Number:B02 Page 1 of 1
Location:500 West 5th Street
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
Drill Rig Type:Direct-Push Partner Engineering and Science
26 0.0
27 0.0
28 0.0
29 0.0
30 0.0 CL
31 0.0
32 0.0
33 0.0
34 0.0 SM
35 0.0
36 B02-36.0 0.0
37 0.0
38
39
40
Bottom of boring: 37.0'
30.0'-37.0': Orange-, purple-, brown-, and black-mottled
clayey silt to medium sand. Moist.
28.5'-30.0': Orange silty clay. Moist.
24.5'-28.5': Weathered granitic rock. Dry.
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS
1 0.0
2 0.0
3 0.0 CL
4 0.0
5 0.0
6 0.0
7 0.0
8 0.0
9 0.0 SC
10 0.0
11 0.0
12 0.0
13 0.0
14 0.0
15 0.0 SM
16 0.0
17 0.0
18 0.0
19 0.0 SM
20 0.0
21 0.0
22 0.0
23 0.0
24 0.0 SM
25 0.0
5.0'-12.0': Orange silt. Micaceous. Dry.
12.0'-17.5': Light purple silty fine sand. Micaceous. Dry.
17.5'-20.0': Light orange silt to fine sand. Weathered
biotite pebbles. Dry.
20.0'-25.0': Light purple-, light orange-, and tan-mottled
silt to fine sand. Dry.
0.0'-0.5': Asphalt
0.5'-5.0': Orange silty clay. Dry.
Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample Description Notes
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
Boring Number:B03 Page 1 of 1
Location:500 West 5th Street
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
Drill Rig Type:Direct-Push Partner Engineering and Science
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS

Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample Description Notes
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
Boring Number:B03 Page 1 of 1
Location:500 West 5th Street
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
Drill Rig Type:Direct-Push Partner Engineering and Science
26 0.0
27 B03-27.0 0.0
28 0.0
29
30
31
32
33
34
35
36
37
38
39
40

Bottom of boring: 27.5'
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS
1 0.0
2 0.0
3 0.0
4 0.0 CL
5 0.0
6 0.0
7 0.0
8 0.0 SC
9 0.0
10 0.0
11 0.0
12 0.0
13 0.0 SM
14 0.0
15 0.0
16 0.0
17 0.0
18 0.0
19 0.0
20 0.0
21 0.0
22 0.0 CL
23 0.0
24 0.0
25 0.0
15.0'-27.5': Light purple- and orange-mottled silty clay.
Micaceous. Dry.
0.0'-0.5': Asphalt
0.5'-6.5': Orange silty clay. Micaceous. Dry.
6.5'-10.0': Orange clayey silt to fine sand. Micaceous.
Dry.
10.0'-15.0': Light purple silt to fine sand. Micaceous.
Dry.
Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample Description Notes
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
Boring Number:B04 Page 1 of 1
Location:500 West 5th Street
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
Drill Rig Type:Direct-Push Partner Engineering and Science
Date Started:2/10/2015
Date Completed:2/10/2015
Depth to Groundwater:NA
Field Technician:M. McKenna
Depth PID USCS

Borehole Diameter:2.25"Charlotte, North Carolina 28226
Sample Description Notes
Sampling Equipment:PVC liner 8000 Corporate Center Drive Suite 104
Boring Number:B04 Page 1 of 1
Location:500 West 5th Street
Site Address:500 West 5th Street
Winston-Salem NC
Project Number:14-131345.4
Drill Rig Type:Direct-Push Partner Engineering and Science
26 0.0
27 0.0
28 0.0
29 0.0 ML
30 0.0
31 0.0
32 0.0 SP
33 0.0
34 0.0
35 B04-35.0 0.0
36 0.0
37
38
39
40
32.5'-36.0': Weathered biotite-rich granitic rock. Dry.
Bottom of boring: 36.0'

27.5'-29.0': Light brown silt. Micaceous. Dry.
29.0'-30.0': Weathered biotite-rich granitic rock. Dry.
30.0'-32.5': Light brown fine to medium sand.
Micaceous. Dry.

APPENDIX B: UST TIGHTNESS TESTING REPORT

2/10/2015
23
Diesel
2000
.031 .713
.713
.713
1.213
-1.24
9:16
9:19
9:22
9:22
9:24
0
-1.24
-1.24
-1.24
-1.24
DWT
DWT
23
29
100
71
WINSTON SALEM, NC
500 W. 5TH STREET
1
PARTNER ENGINEERING &
SCIENCE, INC
150210A-50
notes
GMAC BUILDING
2/10/2015
2000
Diesel
PARTNER ENGINEERING &
SCIENCE, INC
GMAC BUILDING
500 W. 5TH STREET
WINSTON SALEM, NC
Don Reeves 94-7353
08/10/2015
Precision Tank Service, Inc.
P.O. Box 2040
Cornelius, NC 28031
800-533-8039
X
1

APPENDIX C: LABORATORY ANALYTICAL REPORT

#=CL#
February 16, 2015
LIMS USE: FR - MIKE MCKENNA
LIMS OBJECT ID: 92237616
92237616
Project:
Pace Project No.:
RE:
Mike McKenna
Partner ESI
8000 Corporate Center Drive
Charlotte,
14-131345.5
Dear Mike McKenna:
Enclosed are the analytical results for sample(s) received by the laboratory on February 12, 2015.
The results relate only to the samples included in this report. Results reported herein conform to the
most current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unless
otherwise noted in the body of the report.
Analyses were performed at the Pace Analytical Services location indicated on the sample analyte
page for analysis unless otherwise footnoted.
If you have any questions concerning this report, please feel free to contact me.
Sincerely,
Kevin Herring
[e-mail]
HORIZON Database Administrator
Enclosures
cc: Bruce Dalton, Partner ESI
Billing Dept., Partner Engineering and Science
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 1 of 15
#=CP#
CERTIFICATIONS
Pace Project No.:
Project:
92237616
14-131345.5
Charlotte Certification IDs
9800 Kincey Ave. Ste 100, Huntersville, NC 28078North Carolina Drinking Water Certification #: 37706
North Carolina Field Services Certification #: 5342North Carolina Wastewater Certification #: 12South Carolina Certification #: 99006001
Florida/NELAP Certification #: E87627Kentucky UST Certification #: 84
West Virginia Certification #: 357Virginia/VELAP Certification #: 460221
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 2 of 15
#=SA#
SAMPLE ANALYTE COUNT
Pace Project No.:
Project:
92237616
14-131345.5
Lab ID Sample ID Method
Analytes
Reported LaboratoryAnalysts
92237616001 B01-6.0 EPA 8015 Modified 2 PASI-CBFW
ASTM D2974-87 1 PASI-CEJK
92237616002 B02-36.0 EPA 8015 Modified 2 PASI-CBFW
ASTM D2974-87 1 PASI-CEJK
92237616003 B03-27.0 EPA 8015 Modified 2 PASI-CBFW
ASTM D2974-87 1 PASI-CEJK
92237616004 B04-35.0 EPA 8015 Modified 2 PASI-CBFW
ASTM D2974-87 1 PASI-CEJK
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 3 of 15
#=HO#
SUMMARY OF DETECTION
Pace Project No.:
Project:
92237616
14-131345.5
Parameters AnalyzedResult
Lab Sample ID
Report Limit QualifiersUnitsMethod
Client Sample ID
92237616001 B01-6.0
Percent Moisture 10.2 %02/16/15 11:070.10ASTM D2974-87
92237616002 B02-36.0
Percent Moisture 22.5 %02/16/15 11:070.10ASTM D2974-87
92237616003 B03-27.0
Percent Moisture 8.0 %02/16/15 11:080.10ASTM D2974-87
92237616004 B04-35.0
Percent Moisture 7.9 %02/16/15 11:080.10ASTM D2974-87
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 4 of 15
#=NA#
PROJECT NARRATIVE
Pace Project No.:
Project:
92237616
14-131345.5
Method:
Client:Partner Engineering and Science
EPA 8015 Modified
Date:February 16, 2015
Description:Gasoline Range Organics
General Information:
4 samples were analyzed for EPA 8015 Modified. All samples were received in acceptable condition with any exceptions noted below.
Hold Time:
The samples were analyzed within the method required hold times with any exceptions noted below.
Sample Preparation:
The samples were prepared in accordance with EPA 5035A/5030B with any exceptions noted below.
Initial Calibrations (including MS Tune as applicable):
All criteria were within method requirements with any exceptions noted below.
Continuing Calibration:
All criteria were within method requirements with any exceptions noted below.
Internal Standards:
All internal standards were within QC limits with any exceptions noted below.
Surrogates:
All surrogates were within QC limits with any exceptions noted below.
Method Blank:
All analytes were below the report limit in the method blank, where applicable, with any exceptions noted below.
Laboratory Control Spike:
All laboratory control spike compounds were within QC limits with any exceptions noted below.
Matrix Spikes:
All percent recoveries and relative percent differences (RPDs) were within acceptance criteria with any exceptions noted below.
Additional Comments:
This data package has been reviewed for quality and completeness and is approved for release.
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 5 of 15
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92237616
14-131345.5
Sample: B01-6.0 Lab ID: 92237616001 Collected: 02/10/15 10:54 Received: 02/12/15 17:35 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: EPA 8015 Modified Preparation Method: EPA 5035A/5030BGasoline Range Organics
Gas Range Organics (C6-C10)ND mg/kg 02/13/15 17:5002/13/15 08:486.9 1
Surrogates
4-Bromofluorobenzene (S)83 %02/13/15 17:50 460-00-402/13/15 08:4870-167 1
Analytical Method: ASTM D2974-87Percent Moisture
Percent Moisture 10.2 %02/16/15 11:070.10 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 6 of 15
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92237616
14-131345.5
Sample: B02-36.0 Lab ID: 92237616002 Collected: 02/10/15 11:40 Received: 02/12/15 17:35 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: EPA 8015 Modified Preparation Method: EPA 5035A/5030BGasoline Range Organics
Gas Range Organics (C6-C10)ND mg/kg 02/13/15 18:1602/13/15 08:486.8 1
Surrogates
4-Bromofluorobenzene (S)87 %02/13/15 18:16 460-00-402/13/15 08:4870-167 1
Analytical Method: ASTM D2974-87Percent Moisture
Percent Moisture 22.5 %02/16/15 11:070.10 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 7 of 15
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92237616
14-131345.5
Sample: B03-27.0 Lab ID: 92237616003 Collected: 02/10/15 13:32 Received: 02/12/15 17:35 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: EPA 8015 Modified Preparation Method: EPA 5035A/5030BGasoline Range Organics
Gas Range Organics (C6-C10)ND mg/kg 02/13/15 18:4202/13/15 08:487.0 1
Surrogates
4-Bromofluorobenzene (S)88 %02/13/15 18:42 460-00-402/13/15 08:4870-167 1
Analytical Method: ASTM D2974-87Percent Moisture
Percent Moisture 8.0 %02/16/15 11:080.10 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 8 of 15
#=AR#
ANALYTICAL RESULTS
Pace Project No.:
Project:
92237616
14-131345.5
Sample: B04-35.0 Lab ID: 92237616004 Collected: 02/10/15 14:40 Received: 02/12/15 17:35 Matrix: Solid
Results reported on a "dry-weight" basis
Parameters Results Units DF Prepared Analyzed CAS No. QualReport Limit
Analytical Method: EPA 8015 Modified Preparation Method: EPA 5035A/5030BGasoline Range Organics
Gas Range Organics (C6-C10)ND mg/kg 02/13/15 19:0802/13/15 08:489.5 1
Surrogates
4-Bromofluorobenzene (S)83 %02/13/15 19:08 460-00-402/13/15 08:4870-167 1
Analytical Method: ASTM D2974-87Percent Moisture
Percent Moisture 7.9 %02/16/15 11:080.10 1
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 9 of 15
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92237616
14-131345.5
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
GCV/9004
EPA 5035A/5030B
EPA 8015 Modified
Gasoline Range Organics
Associated Lab Samples: 92237616001, 92237616002, 92237616003, 92237616004
Parameter Units
Blank
Result
Reporting
Limit Qualifiers
METHOD BLANK: 1390990
Associated Lab Samples:92237616001, 92237616002, 92237616003, 92237616004
Matrix: Solid
Analyzed
Gas Range Organics (C6-C10) mg/kg ND 6.0 02/13/15 12:06
4-Bromofluorobenzene (S)%83 70-167 02/13/15 12:06
Parameter Units
LCS
Result
% Rec
Limits Qualifiers% RecConc.
1390991LABORATORY CONTROL SAMPLE:
LCSSpike
Gas Range Organics (C6-C10) mg/kg 52.650 105 70-165
4-Bromofluorobenzene (S)%85 70-167
Parameter Units
MS
Result
% Rec
Limits Qual% RecConc.
1390992MATRIX SPIKE & MATRIX SPIKE DUPLICATE:
MSSpike
Result
92237025004
1390993
MSD
Result
MSD
% Rec RPD
MSDMS
Spike
Conc.
Gas Range Organics (C6-C10) mg/kg 44.4 129 47-187107 1944.4ND 57.2 47.4
4-Bromofluorobenzene (S) %85 70-16786
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 10 of 15
#=QC#
QUALITY CONTROL DATA
Pace Project No.:
Project:
92237616
14-131345.5
Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result.
QC Batch:
QC Batch Method:
Analysis Method:
Analysis Description:
PMST/7525
ASTM D2974-87
ASTM D2974-87
Dry Weight/Percent Moisture
Associated Lab Samples: 92237616001, 92237616002, 92237616003, 92237616004
Parameter Units
Dup
Result QualifiersRPDResult
92237439001
1391534SAMPLE DUPLICATE:
Percent Moisture %11.2 710.4
Parameter Units
Dup
Result QualifiersRPDResult
92237570005
1391535SAMPLE DUPLICATE:
Percent Moisture %22.4 122.2
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 11 of 15
#=QL#
QUALIFIERS
Pace Project No.:
Project:
92237616
14-131345.5
DEFINITIONS
DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution of
the sample aliquot, or moisture content.
ND - Not Detected at or above adjusted reporting limit.
J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit.
MDL - Adjusted Method Detection Limit.
PQL - Practical Quantitation Limit.
RL - Reporting Limit.
S - Surrogate
1,2-Diphenylhydrazine (8270 listed analyte) decomposes to Azobenzene.
Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values.
LCS(D) - Laboratory Control Sample (Duplicate)
MS(D) - Matrix Spike (Duplicate)
DUP - Sample Duplicate
RPD - Relative Percent Difference
NC - Not Calculable.
SG - Silica Gel - Clean-Up
U - Indicates the compound was analyzed for, but not detected.
N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for
each analyte is a combined concentration.
A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA
Method 8260.
Acid preservation may not be appropriate for 2-Chloroethylvinyl ether, Styrene, and Vinyl chloride.
Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes.
TNI - The NELAC Institute.
LABORATORIES
Pace Analytical Services - CharlottePASI-C
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 12 of 15
#=CR#
QUALITY CONTROL DATA CROSS REFERENCE TABLE
Pace Project No.:
Project:
92237616
14-131345.5
Lab ID Sample ID QC Batch Method QC Batch Analytical Method
Analytical
Batch
92237616001 GCV/9004 GCV/9007B01-6.0 EPA 5035A/5030B EPA 8015 Modified
92237616002 GCV/9004 GCV/9007B02-36.0 EPA 5035A/5030B EPA 8015 Modified
92237616003 GCV/9004 GCV/9007B03-27.0 EPA 5035A/5030B EPA 8015 Modified
92237616004 GCV/9004 GCV/9007B04-35.0 EPA 5035A/5030B EPA 8015 Modified
92237616001 PMST/7525B01-6.0 ASTM D2974-87
92237616002 PMST/7525B02-36.0 ASTM D2974-87
92237616003 PMST/7525B03-27.0 ASTM D2974-87
92237616004 PMST/7525B04-35.0 ASTM D2974-87
REPORT OF LABORATORY ANALYSIS
This report shall not be reproduced, except in full,
without the written consent of Pace Analytical Services, Inc..Date: 02/16/2015 01:59 PM
Pace Analytical Services, Inc.
9800 Kincey Ave. Suite 100
Huntersville, NC 28078
[phone]
Page 13 of 15
Page 14 of 15
Page 15 of 15