HomeMy WebLinkAbout17053_Alro Steel_Site Summary_2015.06.051
SUMMARY DOCUMENT
PROPOSED ALRO STEEL CORPORATION PURCHASE AND REDEVELOPMENT
7966 NATIONAL SERVICE ROAD, GREENSBORO, NORTH CAROLINA
NC BROWNFIELDS PROJECT NO. 17053-13-41
This document is intended to provide a brief overview of the redevelopment project and
technical information about the property in order to facilitate the State’s evaluation of a
Brownfield Agreement.
Site background
National Steel Service Center first developed the property in 1970. Their specific use of the site is
unclear, but is presumed to have been a steel distribution business. National Steel Service Center
went into bankruptcy in the early 1990s. Fleming-Shaw Transfer & Storage purchased the
property out of bankruptcy in 1993. Fleming-Shaw provides storage and transportation services.
Storage for a variety of pieces of equipment, material, and goods is provided to industries
throughout the east coast. No hazardous materials are stored or transferred on site.
Proposed Redevelopment
Alro Steel Corporation (Alro) is a steel processing and distribution company. Various forms of
steel and other metals are cut to customer specifications and shipped to the customer on a just-
in-time basis. Alro operates over 53 locations nationwide distributing metals, plastics, and
industrial supplies. Alro continues to experience strong growth and has identified a need to
expand its capabilities in the Greensboro area. The acquisition of this building provides additional
space for Alro’s inventory and provides opportunties for future growth. Although there are no
specific plans, this site has significant additional land that allows for future building expansion. In
the immediate future, Alro would make significant improvements to the building including
placement of a racking system and re-lamping the site with energy-efficient lighting. The capital
investment in the property over the next five years is anticipated to be $1 - $2 million. This
expansion is anticipated to create 12 new full-time jobs over the next five years.
Summary of Environmental Findings
Environmental assessment activities were completed in 1993 (when Fleming Shaw acquired the
property) and in 2013 as Alro Steel Corporation evaluated purchase of the property. In 1993, a
small outbuilding (Hazardous Materials Shed) was present near the southwest corner of the
2
building. Staining had been observed in soil surrounding the concrete pad for the shed in 1993.
This staining was also observed in 2013.
A patched concrete area was observed within the building near the southern portion of the
interior. A patched trench led from this area to the southern exterior wall where a remnant pipe
was observed. It appears that the patched area was a subgrade pit or sump used to contain some
piece of equipment operated by National Steel Service Center. It appears that a sump pump may
have been placed in the pit and was used to pump accumulated liquids out of the pit into an
exterior storage tank. Photographs from the 1993 Assessment show a small aboveground storage
tank along the exterior wall at the point where the piping was observed. It appears that National
Steel Service Center utilized an old fuel oil aboveground storage tank to contain the material
removed from the pit.
As part of Alro’s due diligence for this prospective property transaction, soil borings were placed
adjacent to the patched pit, along the patched trench, at the location of the former aboveground
storage tank and the former Hazardous Materials Storage Shed. There was field evidence of
contamination adjacent to the former pit and adjacent to the former Hazardous Materials
Storage Shed.
Former Pit Analytical Results
Petroleum-like odors were detected in the upper five feet, immediately beneath the concrete
slab near the former pit. PID readings ranged from non-detectable to 15 ppm. Soil was sampled
at a depth interval of 14-16 feet and 20-22 feet based on field screening observations.
The laboratory data demonstrate that there is a petroleum hydrocarbon impact in soil beneath
the patched concrete area – a presumed pit. The impact was evidenced by analytical data of soil
boring SB-3 at a depth of 20 to 22 feet below ground level (bgl). Specific VOC compounds
identified above the Protection of Groundwater PSRG at this location included methylene
chloride, tetrachloroethene, and 2-hexanone. None of the detected VOCs exceeded the Industrial
Health Based PSRG. Cadmium was also present in soil above the Protection of Groundwater
PSRG, but below the Industrial Health Based PSRG. Arsenic was detected at a concentration less
than the Protection of Groundwater PSRG but above the Industrial Health Based PSRG. No SVOCs
were detected in soil samples from this area.
A groundwater sample was also collected at this SB-3 location. Groundwater was encountered at
a depth of 28 feet. The groundwater sample contained arsenic, chromium, lead, and
3
tetrachloroethene above the Groundwater Quality Standard. Field notes indicate that there was
initially significant turbidity in the groundwater sample before the purging and sampling. It is
possible that the metals are a function of suspended fine solids in the water sample rather than
true groundwater conditions. Placement of a permanently constructed groundwater monitoring
well would be needed to confirm or refute whether the detected metals truly represent a
groundwater impact.
Former Flammable Materials Storage Shed
Soil borings SB-4 and SB-5 were advanced near the concrete pad where the former storage shed
had been located. One boring (SB-4) was placed near the northeast corner of the pad and the
other soil boring (SB-5) was placed near the northwest corner of the pad. Stained soils were
encountered at both boring locations from the surface to the end of the borehole at 35 feet. PID
readings for soils extracted from SB-4 were consistently 10 – 35 ppm at every interval. PID
readings in shallow soil at SB-5 were significantly higher (350 – 400 ppm) in the shallow interval
of two to five feet. PID readings ranging from about 10 to 55 ppm were observed in deeper soils
at SB-5 to the base of the boring at 35 feet.
A shallow soil sample was collected from each boring to characterize the stained soil (0-2 foot
interval at SB-4 and 2-4 foot interval at SB-5). A deeper soil sample was also collected from each
boring. Although field observations and PID readings indicated that possible impacts from VOCs
may be present, very few VOCs were detected in the soil samples and none were above
established PSRGs. Arsenic was present in one soil sample above the Industrial Health Based
PSRG. The detected concentrations of arsenic in soil included two soil samples at 1.1 mg/kg and
1.2 mg/kg and a third soil sample at 5.5 mg/kg. While the single detection at 5.5 mg/kg exceeds
the identified site-specific background concentration, it appears to be within regional levels.
Dragun and Chekiri, Elements in North Carolina Soils (2005), report that background arsenic
concentration in North Carolina soils range from one to 18 ppm with a mean concentration of 4.8
ppm and the identified values on site are within this range.
A groundwater sample was also collected from soil boring SB-5. The groundwater sample from
this area contained tetrachloroethene above the Groundwater Quality Standard. 1,2,4-
trimethylbenzene was also present in the groundwater sample, but at a concentration less than
the Groundwater Quality Standard. No metals or SVOCs were detected in the groundwater
sample above the established Groundwater Quality Standards.
4
Tetrachloroethene was found at both groundwater sampling locations SB-3 and SB-5 above its
established Groundwater Quality Standard. Since the site currently uses an onsite groundwater
supply well to provide drinking water, this potential exposure pathway was discussed with the
current property owner. Envirologic could not locate a well construction log for the well from
either the County Health Department or the property owner. Thus, it is unclear at what depth
water is drawn into the well, nor how the well is constructed. The property owner contracted
with the County Health Department to collect and analyze a sample from the drinking water well.
Those results were favorable and no contaminants were present in the drinking water supply
above any applicable criteria. However, Alro does not wish to use this water supply well in the
future and desires to use a municipal water supply provided by the adjacent City of High Point.
The abandonment of the well will eliminate the drinking water exposure pathway. If the
groundwater exposure pathway is eliminated, only the soil Industrial Health Based PSRGs would
be pertinent cleanup criteria and no contaminants are present on site above Industrial Health
Based PSRGs.
Tables summarizing the analytical data generated during the assessment activities are attached.
Proposed Corrective Action
Summarizing Alro’s proposed action to mitigate potential environmental concerns at the site,
Alro is proposing to permanently close the water supply well on site. The well would be
abandoned in accordance with State and Local health codes. Also would connect the building to
the municipal water supply available in the area. This action would effectively eliminate any
applicable exposure pathways to unacceptable concentrations of contaminants.
Alro will also prepare an Environmental Management Plan to have contingency plans in place to
address reasonably foreseeable environmental conditions at the site that may be encountered as
part of site operations or construction. For example, the Plan would address the management of
excavated soil generated during installation of the new water supply line to the site building.
ATTACHMENT A
FIGURES
Figure 1: Location Map
Figure 2: Soil Analytical Data
Figure 3: Groundwater Analytical Data
1 servicesenvironmental consulting
VIRGINIA
SOUTH CAROLINA
TENNESSEE
OCEAN
ATLANTIC
KENTUCKY
GEORGIA
OBTAINED ON LINE FROM THE USGS MAP STORE.
GREENSBORO, NORTH CAROLINA USGS 7.5 MINUTE TOPOGRAPHIC QUADRANGLE MAPSOURCE:
PROJECT SITE
PROJECT NO.
FIGURE No.
PH: (269) 342-1100 FAX: (269) 342-4945
KALAMAZOO, MICHIGAN 49048
2960 INTERSTATE PARKWAY LOCATION MAP
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TRANSFER & STORAGE
FLEMING-SHAW 130232
GREENSBORO, NC
7966 NATIONAL SERVICE RD
2 servicesenvironmental consulting
SHOULD NOT BE USED TO ESTABLISH PROPERTY BOUNDARY LOCATION IN THE FIELD.
ARE BASED ON AVAILABLE FURNISHED INFORMATION AND ARE APPROXIMATE ONLY AND
THIS IS NOT A PROPERTY BOUNDARY SURVEY, PROPERTY BOUNDARIES SHOWN ON THIS MAP
NOTE:
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TRUCK
CROWN LIFT
RESIDENTIAL
BY RUTH CANNON
STORAGE AREA OWNED
DISTRIBUTION
BUNZL
OFFICE FURNITURE
ALFRED WILLIAMS
SYSTEMS AND
COECO OFFICE
NATIONAL CENTER DR
VACANT LAND
APPROXIMATE PROPERTY BOUNDARY
APPROXIMATE PROPERTY BOUNDARY
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MOWED FIELD
MOWED FIELD
BASIN
DETENTION
STORM WATER
TRANSFORMER
PAD-MOUNTED
OFFICE
2-STORY
COVERS
EQUIPMENT
DISPENSER
DIESEL UST &
FORMER 10,000 GAL
STAINED SOIL
MATERIALS SHED w/
FORMER FLAMMABLE
WET SWALE
SLOPE
F.D.
F.D.
F.D.
F.D.
500 GAL AST
FORMER
PVC PIPE TO
LEVERS
DOCKS w/
3 TRUCK
PADS
EQUIPMENT
INTO FLOOR
PVC ELBOW
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PITTING
FLOOR
AREA
SEPTIC
WELL
PRESS PITS
FORMER
POSSIBLE
SB-1
SB-3 SB-2
SB-4
SB-1
SB-2 SB-3
SB-5
SB-4
MW-1
MW-2
MW-3
LEGEND
F.D. = FLOOR DRAIN
MONITORING WELL LOCATION
INSTALLED AUG. 15-16, 2013
GEOPROBE® SOIL BORING LOCATION
INSTALLED NOV 12-13, 2013
GEOPROBE® SOIL BORING LOCATION
NDVOC
SB-1 @ 16'-18'
NDVOC
SB-4 @ 16'-18'
NDPCB
SB-3 @ 3'-4'
NDVOC
MW-2 @ 15'
Acetone @ 3,140 μg/kg
2-Hexanone @ 185 μg/kg
Tetrachloroethene @ 20 μg/kg
Naphthalene @ 6.1 μg/kg
2-Butanone (MEK) @ 665 μg/kg
Methylene Chloride @ 50.5 μg/kg
1,2,4-Trimethylbenzene @ <5.5 μg/kg
VOC's
Mercury @ 0.012 mg/Kg
Silver @ <0.52 mg/Kg
Selenium @ <1.0 mg/Kg
Lead @ 33.8 mg/Kg
Chromium @ 11.5 mg/Kg
Cadmium @ 1.0 mg/Kg
Barium @ 68.2 mg/Kg
Arsenic @ 1.1 mg/Kg
METALS
GRO @ <6.9 mg/kg
DRO @ 1,030 mg/kg
SB-3 @ 20-22' (8/15/13)
Acetone @ <108 μg/kg
2-Hexanone @ <53.9 μg/kg
Tetrachloroethene @ <5.4 μg/kg
Naphthalene @ <5.4 μg/kg
2-Butanone (MEK) @ <108 μg/kg
Methylene Chloride @ <21.6 μg/kg
1,2,4-Trimethylbenzene @ <5.4 μg/kg
VOC's
Mercury @ <0.0060 mg/Kg
Silver @ <0.59 mg/Kg
Selenium @ <1.2 mg/Kg
Lead @ 14.8 mg/Kg
Chromium @ 3.5 mg/Kg
Cadmium @ 1.8 mg/Kg
Barium @ 174 mg/Kg
Arsenic @ <1.2 mg/Kg
METALS
SB-5 @ 22-24' (8/16/13)
Acetone @ <2,300 μg/kg
2-Hexanone @ <1,150 μg/kg
Tetrachloroethene @ <115 μg/kg
Naphthalene @ <115 μg/kg
2-Butanone (MEK) @ <2,300 μg/kg
Methylene Chloride @ <460 μg/kg
1,2,4-Trimethylbenzene @ 517 μg/kg
VOC's
Mercury @ 0.027 mg/Kg
Silver @ <0.60 mg/Kg
Selenium @ <1.2 mg/Kg
Lead @ 23.0 mg/Kg
Chromium @ 18.8 mg/Kg
Cadmium @ 2.5 mg/Kg
Barium @ 51.7 mg/Kg
Arsenic @ <1.2 mg/Kg
METALS
SB-5 @ 2-4' (8/16/13)
Acetone @ 238 μg/kg
2-Hexanone @ <46.6 μg/kg
Tetrachloroethene @ <4.7 μg/kg
Naphthalene @ <4.7 μg/kg
2-Butanone (MEK) @ <93.1 μg/kg
Methylene Chloride @ 22.4 μg/kg
1,2,4-Trimethylbenzene @ <4.7 μg/kg
VOC's
Mercury @ 0.10 mg/Kg
Silver @ <0.48 mg/Kg
Selenium @ .99 mg/Kg
Lead @ 25.4 mg/Kg
Chromium @ 13.8 mg/Kg
Cadmium @ 1.6 mg/Kg
Barium @ 18.8 mg/Kg
Arsenic @ 5.5 mg/Kg
METALS
SB-4 @ 0-2' (8/16/13)
Acetone @ <127 μg/kg
2-Hexanone @ <63.4 μg/kg
Tetrachloroethene @ <6.3 μg/kg
Naphthalene @ <6.3 μg/kg
2-Butanone (MEK) @ <127 μg/kg
Methylene Chloride @ <25.3 μg/kg
1,2,4-Trimethylbenzene @ <6.3 μg/kg
VOC's
Mercury @ <0.0056 mg/Kg
Silver @ <0.59 mg/Kg
Selenium @ <1.2 mg/Kg
Lead @ 10.8 mg/Kg
Chromium @ 2.0 mg/Kg
Cadmium @ 0.16 mg/Kg
Barium @ 115 mg/Kg
Arsenic @ 1.3 mg/Kg
METALS
SB-4 @ 24-26' (8/16/13)
Acetone @ <131 μg/kg
2-Hexanone @ <65.4 μg/kg
Tetrachloroethene @ <6.5 μg/kg
Naphthalene @ <6.5 μg/kg
2-Butanone (MEK) @ <131 μg/kg
Methylene Chloride @ 69 μg/kg
1,2,4-Trimethylbenzene @ <6.5 μg/kg
VOC's
Mercury @ <0.0067 mg/Kg
Silver @ <0.60 mg/Kg
Selenium @ 1.4 mg/Kg
Lead @ 12.5 mg/Kg
Chromium @ 38.4 mg/Kg
Cadmium @ 4.1 mg/Kg
Barium @ 154 mg/Kg
Arsenic @ <1.2 mg/Kg
METALS
GRO @ <7.9 mg/kg
DRO @ <6.7 mg/kg
SB-3 @ 14-16'(8/15/13)
Not Analyzed=NA
VOC's
Mercury @ 0.14 mg/Kg
Silver @ <0.55 mg/Kg
Selenium @ 2.1 mg/Kg
Lead @ 20.1 mg/Kg
Chromium @ 21.6 mg/Kg
Cadmium @ 2.9 mg/Kg
Barium @ 31.0 mg/Kg
Arsenic @ <1.1 mg/Kg
METALS
GRO @ <7.0 mg/kg
DRO @ <6.8 mg/kg
SB-1 @ 4-6' (8/15/13)
PROJECT NO.
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FIGURE No.
130232
PH: (269) 342-1100 FAX: (269) 342-4945
KALAMAZOO, MICHIGAN 49048
2960 INTERSTATE PARKWAY
TRANSFER & STORAGE
FLEMING- SHAW
GREENSBORO, NC
7966 NATIONAL SERVICE RD
SOIL ANALYTICAL DATA
3 servicesenvironmental consulting
SHOULD NOT BE USED TO ESTABLISH PROPERTY BOUNDARY LOCATION IN THE FIELD.
ARE BASED ON AVAILABLE FURNISHED INFORMATION AND ARE APPROXIMATE ONLY AND
THIS IS NOT A PROPERTY BOUNDARY SURVEY, PROPERTY BOUNDARIES SHOWN ON THIS MAP
NOTE:
T YN
E R R D
N
A
T
I
O
N
A
L
S
E
R
V
I
C
E
R
D
I-40W
I-40E
7805-91-6795-000
PARCEL#
0 50 100 200
SCALE 1" = 100'
TRUCK
CROWN LIFT
RESIDENTIAL
BY RUTH CANNON
STORAGE AREA OWNED
DISTRIBUTION
BUNZL
OFFICE FURNITURE
ALFRED WILLIAMS
SYSTEMS AND
COECO OFFICE
NATIONAL CENTER DR
VACANT LAND
APPROXIMATE PROPERTY BOUNDARY
APPROXIMATE PROPERTY BOUNDARY
A
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P
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I
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A
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B
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MOWED FIELD
MOWED FIELD
BASIN
DETENTION
STORM WATER
TRANSFORMER
PAD-MOUNTED
OFFICE
2-STORY
COVERS
EQUIPMENT
DISPENSER
DIESEL UST &
FORMER 10,000 GAL
STAINED SOIL
MATERIALS SHED w/
FORMER FLAMMABLE
WET SWALE
SLOPE
F.D.
F.D.
F.D.
F.D.
500 GAL AST
FORMER
PVC PIPE TO
LEVERS
DOCKS w/
3 TRUCK
PADS
EQUIPMENT
INTO FLOOR
PVC ELBOW
A
P
P
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B
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PITTING
FLOOR
AREA
SEPTIC
WELL
PRESS PITS
FORMER
POSSIBLE
SB-1
SB-3 SB-2
SB-4
SB-1
SB-2 SB-3
SB-5
SB-4
MW-1
MW-2
MW-3
LEGEND
F.D. = FLOOR DRAIN
MONITORING WELL LOCATION
INSTALLED AUG. 15-16, 2013
GEOPROBE® SOIL BORING LOCATION
INSTALLED NOV 12-13, 2013
GEOPROBE® SOIL BORING LOCATION
Diethylphthalate @ <5 μg/L
SVOC's
Tetrachloroethene @ 2.7 μg/L
1,2,4-Trimethylbenzene @ 1.1 μg/L
1,1,1-Trichloroethane @ <0.5 μg/L
1,1-Dichloroethane @ <0.5 μg/L
VOC's
Mercury @ <0.20 μg/L
Silver @ <5.0 μg/L
Selenium @ <10.0 μg/L
Lead @ 6.0 μg/L
Chromium @ <5.0 μg/L
Cadmium @ <1.0 μg/L
Barium @ 150 μg/L
Arsenic @ <10 μg/L
METALS
VPH @ All ND (<50)
EPH @ All ND (<100)
SB-5 @ (8/16/13)
NDVOC
MW-2
NDVOC
MW-1
NDVOC
MW-3
Diethylphthalate @ 10 μg/L
SVOC's
Tetrachloroethene @ 0.87 μg/L
1,2,4-Trimethylbenzene @ <0.5 μg/L
1,1,1-Trichloroethane @ 0.73 μg/L
1,1-Dichloroethane @ 1.0 μg/L
VOC's
Mercury @ <0.20 μg/L
Silver @ <5.0 μg/L
Selenium @ <10.0 μg/L
Lead @ 33.6 μg/L
Chromium @ 28.9 μg/L
Cadmium @ <1.0 μg/L
Barium @ 308 μg/L
Arsenic @ 12.2 μg/L
METALS
VPH @ All ND (<50)
EPH @ All ND (<100)
SB-3 @ (8/16/13)
PROJECT NO.
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FIGURE No.
130232
PH: (269) 342-1100 FAX: (269) 342-4945
KALAMAZOO, MICHIGAN 49048
2960 INTERSTATE PARKWAY
TRANSFER & STORAGE
FLEMING- SHAW
GREENSBORO, NC
7966 NATIONAL SERVICE RD
ANALYTICAL DATA
GROUNDWATER
ATTACHMENT B
Table 1: Soil Analytical Results
Table 2: Groundwater Analytical Results
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/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
AL
L
N
D
-
-
-
-
-
-
-
-
NA
N
A
N
A
N
A
N
A
N
A
N
A
N
A
All < 0.021 NA
N
A
N
A
N
A
N
A
Me
t
a
l
s
(
6
0
1
0
)
(
7
4
7
1
)
mg
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
Ar
s
e
n
i
c
N
S
0
.
6
1
2
.
4
5
.
8
<1
.
1
<
1
.
2
1.
1
5.
5
1.
3
<1
.
2
<
1
.
2
N
A
N
A
N
A
N
A
2.5 <1.0
<
1
.
0
Ba
r
i
u
m
N
S
3
,
0
0
0
3
8
,
0
0
0
5
8
0
3
1
.
0
1
5
4
6
8
.
2
1
8
.
8
1
1
5
5
1
.
7
1
7
4
NA
N
A
N
A
N
A
N
A
N
A
N
A
Ca
d
m
i
u
m
N
S
1
4
1
6
0
3
.
0
2
.
9
4.
1
1.
0
1
.
6
0
.
1
6
2
.
5
1
.
8
NA
N
A
N
A
N
A
N
A
N
A
N
A
Ch
r
o
m
i
u
m
N
S
2
4
,
0
0
0
*
1
0
0
,
0
0
0
*
3
6
0
,
0
0
0
*
2
1
.
6
3
8
.
4
1
1
.
5
1
3
.
8
2
.
0
1
8
.
8
3
.
5
NA
N
A
N
A
N
A
N
A
N
A
N
A
Le
a
d
N
S
4
0
0
8
0
0
2
7
0
2
0
.
1
1
2
.
5
3
3
.
8
2
5
.
4
1
0
.
8
2
3
.
0
1
4
.
8
NA
N
A
N
A
N
A
N
A
N
A
N
A
Se
l
e
n
i
u
m
N
S
7
8
1
,
0
0
0
2
.
1
2
.
1
1
.
4
<1
.
0
0.
9
9
<1
.
2
<
1
.
2
<
1
.
2
N
A
N
A
N
A
N
A
N
A
N
A
N
A
Si
l
v
e
r
N
S
7
8
1
,
0
0
0
3
.
4
<0
.
5
5
<
0
.
6
0
<
0
.
5
2
<
0
.
4
8
<
0
.
5
9
<
0
.
6
0
<
0
.
5
9
N
A
N
A
N
A
N
A
N
A
N
A
N
A
Me
r
c
u
r
y
N
S
2
.
0
3
.
1
1
.
0
0
.
1
4
<0
.
0
0
6
7
0.
0
1
2
0
.
1
0
<0
.
0
0
5
6
0.
0
2
7
<0
.
0
0
6
0
N
A
N
A
N
A
N
A
N
A
N
A
N
A
VO
C
s
(
8
2
6
0
)
µg
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
1,
2
,
4
-
T
r
i
m
e
t
h
y
l
b
e
n
z
e
n
e
N
S
1
2
,
0
0
0
5
2
,
0
0
0
6
,
7
0
0
NA
<
6
.
5
<
5
.
5
<
4
.
7
<
6
.
3
51
7
<5
.
4
<
1
.
2
N
A
<
1
.
2
<
1
.
3
N
A
N
A
N
A
Me
t
h
y
l
e
n
e
C
h
l
o
r
i
d
e
N
S
5
6
,
0
0
0
6
2
0
,
0
0
0
2
3
NA
69
5
0
.
5
22
.
4
<2
5
.
3
<
4
6
0
<
2
1
.
6
<
6
.
2
N
A
<
5
.
9
<
6
.
6
N
A
N
A
N
A
2-
B
u
t
a
n
o
n
e
(
M
E
K
)
N
S
5
,
6
0
0
,
0
0
0
2
8
,
0
0
0
,
0
0
0
1
6
,
0
0
0
NA
<
1
3
1
66
5
<9
3
.
1
<
1
2
7
<
2
,
3
0
0
<
1
0
8
<
1
2
N
A
<
1
2
<
1
3
N
A
N
A
N
A
Na
p
h
t
h
a
l
e
n
e
N
S
3
,
6
0
0
1
8
,
0
0
0
2
1
0
NA
<
6
.
5
6.
1
<4
.
7
<
6
.
3
<
1
1
5
<
5
.
4
<
6
.
2
N
A
<
5
.
9
<
6
.
6
N
A
N
A
N
A
Te
t
r
a
c
h
l
o
r
o
e
t
h
e
n
e
N
S
1
7
,
0
0
0
8
2
,
0
0
0
5
.
0
NA
<
6
.
5
20
<4
.
7
<
6
.
3
<
1
1
5
<
5
.
4
<
1
.
2
N
A
<
1
.
2
<
1
.
3
N
A
N
A
N
A
2-
H
e
x
a
n
o
n
e
N
S
4
2
,
0
0
0
2
8
0
,
0
0
0
1
7
0
NA
<
6
5
.
4
18
5
<4
6
.
6
<
6
3
.
4
<
1
,
1
5
0
<
5
3
.
9
N
A
N
A
N
A
N
A
N
A
N
A
N
A
Ac
e
t
o
n
e
N
S
1
2
,
0
0
0
,
0
0
0
1
0
0
,
0
0
0
,
0
0
0
2
4
,
0
0
0
NA
<
1
3
1
3,
1
4
0
2
3
8
<1
2
7
<
2
,
3
0
0
<
1
0
8
<
6
2
N
A
<
5
9
<
6
6
N
A
N
A
N
A
SV
O
C
s
(
8
2
7
0
)
NS
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
µ
g
/
k
g
AL
L
N
D
-
-
-
-
-
-
-
-
Al
l
N
D
A
l
l
N
D
A
l
l
N
D
A
l
l
N
D
A
l
l
N
D
A
l
l
N
D
A
l
l
N
D
N
A
N
A
N
A
N
A
NA NA NA
No
t
e
s
:
Bo
l
d
t
e
x
t
i
n
d
i
c
a
t
e
s
e
x
c
e
e
d
a
n
c
e
o
f
P
r
o
t
e
c
t
i
o
n
o
f
G
r
o
u
n
d
w
a
t
e
r
P
S
R
G
Un
d
e
r
l
i
n
e
d
t
e
x
t
i
n
d
i
c
a
t
e
s
e
x
c
e
e
d
a
n
c
e
o
f
R
e
s
i
d
e
n
t
i
a
l
H
e
a
l
t
h
P
S
R
G
Sh
a
d
e
d
t
e
x
t
i
n
d
i
c
a
t
e
s
e
x
c
e
e
d
a
n
c
e
o
f
T
o
t
a
l
P
e
t
r
o
l
e
u
m
H
y
d
r
o
c
a
r
b
o
n
A
c
t
i
o
n
L
e
v
e
l
NA
-
N
o
t
A
n
a
l
y
z
e
d
NS
-
N
o
S
t
a
n
d
a
r
d
*
-
S
t
a
n
d
a
r
d
s
h
o
w
n
i
s
f
o
r
i
n
s
o
l
u
b
l
e
t
r
i
v
a
l
e
n
t
c
h
r
o
m
i
u
m
PS
R
G
-
N
o
r
t
h
C
a
r
o
l
i
n
a
P
r
e
l
i
m
i
n
a
r
y
S
o
i
l
R
e
m
e
d
i
a
t
i
o
n
G
o
a
l
DR
O
-
D
i
e
s
e
l
R
a
n
g
e
O
r
g
a
n
i
c
s
GR
O
-
G
a
s
o
l
i
n
e
R
a
n
g
e
O
r
g
a
n
i
c
s
VO
C
s
-
V
o
l
a
t
i
l
e
O
r
g
a
n
i
c
C
o
m
p
o
u
n
d
SV
O
C
s
-
S
e
m
i
-
V
o
l
a
t
i
l
e
O
r
g
a
n
i
c
C
o
m
p
o
u
n
d
s
--
-
N
o
t
l
i
s
t
e
d
d
u
e
t
o
n
o
S
V
O
C
d
e
t
e
c
t
i
o
n
s
d
u
r
i
n
g
t
h
e
8
2
7
0
a
n
a
l
y
s
e
s
AL
L
N
D
-
N
o
a
n
a
l
y
t
e
s
w
e
r
e
d
e
t
e
c
t
e
d
d
u
r
i
n
g
t
h
e
a
n
a
l
y
s
e
s
mg
/
k
g
-
m
i
l
l
i
g
r
a
m
s
p
e
r
k
i
l
o
g
r
a
m
;
µ
g
/
k
g
-
m
i
c
r
o
g
r
a
m
s
p
e
r
k
i
l
o
g
r
a
m
An
a
l
y
t
i
c
a
l
m
e
t
h
o
d
i
n
p
a
r
e
n
t
h
e
s
i
s
mg/kg
m
g
/
k
g
m
g
/
k
g
Re
s
i
d
e
n
t
i
a
l
He
a
l
t
h
B
a
s
e
PS
R
G
In
d
u
s
t
r
i
a
l
He
a
l
t
h
B
a
s
e
PS
R
G
Pr
o
t
e
c
t
i
o
n
o
f
Gr
o
u
n
d
w
a
t
e
r
PS
R
G
mg
/
k
g
SB
-
3
S
B
-
4
mg
/
k
g
m
g
/
k
g
mg
/
k
g
mg/kg
m
g
/
k
g
m
g
/
k
g
Bo
l
d
b
o
x
i
n
d
i
c
a
t
e
s
e
x
c
e
e
d
a
n
c
e
o
f
I
n
d
u
s
t
r
i
a
l
H
e
a
l
t
h
P
S
R
G
To
t
a
l
P
e
t
r
o
l
e
u
m
Hy
d
r
o
c
a
r
b
o
n
s
(
8
0
1
5
)
mg
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
m
g
/
k
g
mg
/
k
g
To
t
a
l
P
e
t
r
o
l
e
u
m
Hy
d
r
o
c
a
r
b
o
n
Ac
t
i
o
n
L
e
v
e
l
mg
/
k
g
SB
-
5
Table 2
Summary of Groundwater Analytical Detections
Fleming Shaw Facility
Greensboro, North Carolina
Sample ID SB-3 SB-5 MW-1 MW-2 MW-3
Sample Date 8/16/13 8/16/13 11/13/13 11/13/13 11/13/13
Petroleum Hydrocarbons (MADEP)µg/L µg/L µg/L µg/L µg/L µg/L
EPH --All ND (<100) All ND (<100) NA NA NA
VPH --All ND (<50) All ND (<50) NA NA NA
Metals (6010)(7470)µg/L µg/L µg/L µg/L µg/L
Arsenic 10 12.2 <10 NA NA NA
Barium 700 308 150 NA NA NA
Cadmium 2 <1.0 <1.0 NA NA NA
Chromium 10 28.9 <5.0 NA NA NA
Lead 15 33.6 6.0 NA NA NA
Selenium 20 <10.0 <10.0 NA NA NA
Silver 20 <5.0 <5.0 NA NA NA
Mercury 1 <0.20 <0.20 NA NA NA
VOCs (6200)µg/L µg/L µg/L µg/L µg/L
1,1-Dichloroethane 6 1.0 <0.5 <1.0 <1.0 <1.0
1,1,1-Trichloroethane 200 0.73 <0.5 <1.0 <1.0 <1.0
1,2,4-Trimethylbenzene 400 <0.5 1.1 <1.0 <1.0 <1.0
Tetrachloroethene 0.7 0.87 2.7 <1.0 <1.0 <1.0
SVOCs (625)µg/L µg/L µg/L µg/L µg/L µg/L
Diethylphthalate 6,000 10 <5 NA NA NA
Notes:
Bold text indicates exceedance of NCGWQS
NCGWQS - North Carolina Groundwater Quality Standard
EPH - Extractable Petroleum Hydrocarbon
VPH - Volatile Petroleum Hydrocarbon
VOCs - Volatile Organic Compound
SVOCs - Semi-Volatile Organic Compounds
-- - Not listed due to no aliphatic or aromatic carbon chain detections during the MADEP analyses
ALL ND - No EPH or VPH carbon chains were detected during the MADEP analyeses
µg/L - micrograms per Liter
NA - Not Analyzed
Analytical method in parenthesis
NCGWQS