HomeMy WebLinkAbout20086_Chadbourne_Mill_VIA_20170217
Via Email
February 17, 2017
Faison & Associates
121 W. Trade Street, Suite 2800
Charlotte, North Carolina 28202
Attention: Mr. Kris Fetter
Subject: Brownfields Assessment Report
Chadbourn Mill
451 Jordan Place & 2625 N. Davidson Street
Charlotte, North Carolina
Brownfields Project ID# 20086-16-060
H&H Project No. FAI-028
Dear Kris:
1.0 Introduction Background
Hart & Hickman, PC (H&H) has prepared this report to document recent Brownfields
Assessment activities conducted at the former Chadbourn Mill property located at 451 Jordan
Place and 2625 N. Davidson Street in Charlotte, Mecklenburg County, North Carolina (Site or
subject Site). A Site location map is provided as Figure 1. The Site is comprised of two parcels
identified as Mecklenburg County parcels 08306707 (451 Jordan Place) and 08306701 (2625 N.
Davidson Street) that total approximately 5.75 acres and contain an approximately 120,000 sq. ft
former hosiery mill facility.
Original portions of the mill building in the western portion of the Site were constructed in the
mid to late 1930s. Additions to the mill building constructed from the 1940s through the 1960s
included a dye house, boiler building and smokestack, offices and warehouses. The mill facility
operated as a hosiery manufacturer from the 1930s until the 1970s. Since the 1970s, the mill
building has been periodically used for storage and warehousing.
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February 17, 2017
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2.0 Background
Terracon conducted assessment activities at the Site in August 2016 in potential areas of concern
associated with historical mill operations. The assessment included collection of sub-slab vapor
samples in the boiler building and lower level of the original mill building to evaluate the
potential for vapor intrusion. Laboratory analytical results indicated that the chlorinated solvent
compound trichloroethene (TCE) was detected at concentrations exceeding the North Carolina
Department of Environmental Quality (DEQ) Division of Waste Management (DWM) Non-
Residential Vapor Intrusion Screening Level (VISL) in the sample collected in the boiler
building. No compounds were detected above the DWM VISLs in the sub-slab vapor samples
collected in the lower level of the mill building. Results of the Terracon assessment are
documented in their Limited Site Investigation Report dated September 7, 2016.
To further evaluate the potential for impacts associated with historical mill operations, and to
evaluate the potential for impacts in areas of the Site where proposed redevelopment will occur,
H&H conducted soil, groundwater, soil vapor, sub-slab vapor, and indoor air assessment
activities at the Site in late September and early October 2016. Results of the H&H assessment
activities are documented in the Phase I and II Environmental Site Assessment report dated
November 9, 2016. The results of the Phase II ESA indicated the following:
Analytical results of soil samples collected at the Site did not identify significant impacts.
Analytical results of groundwater samples identified a low level TCE concentration
downgradient (northwest) of the dye house above the 2L Standard and the Residential
and Non-Residential VISLs. Additionally, manganese was detected at concentrations
exceeding the 2L Standard in groundwater downgradient of the dye house and the mill
building, although the manganese detections may in whole or part be due to naturally
occurring levels. Bromodichloromethane was detected at trace concentrations above the
2L Standard downgradient of the boiler building and the mill building. However, the
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bromodichloromethane detections are likely associated with leaking chlorinated drinking
water infrastructure and not historical Site operations.
Results of soil vapor assessment activities identified the potential for vapor intrusion at
levels of concern into one future mixed-use building proposed along Jordan Place in the
south-central portion of the Site.
Results of sub-slab vapor assessment activities conducted in the boiler building
confirmed the presence of elevated concentrations of TCE detected previously by
Terracon. However, results of a concurrent indoor air sample collected in the boiler
building indicated that there is not a completed vapor intrusion pathway for TCE beneath
the slab to migrate into the building at levels of concern.
Results of sub-slab vapor assessment activities conducted in the lower level of the
original mill building, which will remain as part of the proposed redevelopment plan,
indicated the potential for vapor intrusion at levels of concern into the building.
The Site received eligibility into the DEQ Brownfields Program via a Letter of Eligibility dated
December 8, 2016. Faison-Chadbourn Mill, LLC subsequently elected to participate in the
Brownfields Program Redevelopment Now Pilot option. As part of this process, a kick-off/data
gap meeting was held at the DEQ Regional office in Raleigh, NC on January 10, 2017 to discuss
prior Site history, proposed redevelopment plans, previous assessment results, data gaps, and the
proposed schedule for completing the Brownfields Agreement. Prior to the meeting, a draft
Environmental Management Plan (EMP) and a Brownfields Information Package were
submitted to DEQ Brownfields for review. In addition, Brownfields Program personnel visited
the Site with a representative of Faison-Chadbourn Mill, LLC and H&H on January 18, 2017.
Based upon discussions during the meeting on January 10 and the Site visit on January 18, H&H
submitted a work plan for additional assessment to DEQ on January 25, 2017, and DEQ
approved the work plan in a letter dated January 26, 2017. Subsequently, H&H conducted soil,
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groundwater, and indoor air assessment activities on January 27, 2017 to further evaluate the
potential for impacts associated with historical mill operations, and to evaluate the potential for
vapor intrusion into the lower level of the mill building.
3.0 Brownfields Assessment Activities
The assessment activities were performed in general accordance with DEQ Inactive Hazardous
Sites Branch (IHSB) Guidelines for Assessment and Cleanup dated October 2015, the DEQ
DWM Vapor Intrusion Guidance dated April 2014, and most recent version of the U.S.
Environmental Protection Agency (EPA) Region IV Science and Ecosystem Support (SESD)
Field Branches Quality System and Technical Procedures guidance.
Prior to conducting field activities, H&H contacted NC One-Call, the public utility locator, to
mark subsurface utilities at the Site. H&H also contracted with a private utility locator to mark
utilities which were not identified by the public locator. Additionally, H&H directed the drilling
contractor to hand clear each boring to a depth of approximately 5 feet (ft) below ground surface
(bgs) to further screen the boring locations for the presence of subsurface utilities. In accordance
with Mecklenburg County rules, H&H obtained a Subsurface Investigation Permit (SIP) from
Mecklenburg County (SIP# 70002379) prior to temporary monitoring well installation and
sampling.
A discussion of the sampling methods, analytical results, and conclusions associated with the
recent assessment activities is provided in the following sections.
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February 17, 2017
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3.1 Soil Sampling
H&H contracted with Innovative Environmental Technologies, Inc. (IET) to advance two soil
borings (SB-6 and SB-6B) east of the boiler building to evaluate the potential for
impacts associated with historical coal storage. Soil boring locations are depicted on Figure 2.
The soil borings were advanced to approximately 15 ft bgs with a track-mounted drill
rig utilizing direct push technology (DPT) drilling techniques. Continuous soil samples
were collected from the borings using acetate lined macrocore sleeves. The soil samples were
logged for lithological description and inspected for indication of potential impacts by
observation for staining and evidence of coal, and for the presence of volatile organic vapors
using a calibrated photoionization detector (PID). Results of field screening did not identify
obvious evidence of impacts or the presence of coal. Boring logs including field screening
results are provided in Appendix A.
Because no obvious evidence of impact or obvious evidence of historical coal storage was
identified in either soil boring, H&H collected one shallow soil sample for laboratory analysis
from the SB-6 boring at the depth interval interpreted to be the surface of native soil (2-4 ft bgs)
where coal would have been stored which is now below fill in this area. The soil sample was
placed directly into dedicated laboratory-supplied sample containers, labeled with the sample
identification, date, and requested analysis, and placed in a laboratory supplied cooler with ice.
The sample was delivered to Con-Test Analytical Laboratory for analysis of semi-volatile
organic compounds (SVOCs) by EPA Method 8270D and hazardous site list (HSL) metals plus
hexavalent chromium by EPA Method 6010/7471/7196. The laboratory analytical report and
chain of custody record are provided as Appendix B.
Upon completion of soil sampling, the borings were properly abandoned and the locations
were estimated using a hand-held GPS unit.
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3.2 Soil Sample Results
Results of the soil sample analyses are summarized in Table 1. The analytical results were
compared to IHSB Residential and Non-Residential Preliminary Soil Remediation Goals
(PSRGs). In addition to the PSRGs, metals results were compared to Site-specific background
concentrations for metals and published concentrations for naturally occurring metals.
Analytical results indicate that no SVOCs were detected above laboratory reporting limits in the
coal storage yard soil sample. As expected, several metals were detected at concentrations above
laboratory reporting limits. No metals concentrations were detected at levels exceeding PSRGs
with the exception of manganese. Manganese was detected at 1,000 mg/kg which exceeds the
Residential PSRG of 360 mg/kg, but is well below the Non-Residential PSRG of 5,200 mg/kg.
The detected manganese concentration slightly exceeds the Site-specific background range for
manganese (370–590 mg/kg) based on laboratory analytical results for previously collected
background soil samples. However, the detected manganese concentration in the coal yard soil
sample is consistent with manganese concentrations detected in soil samples from other portions
of the Site and consistent with regional background levels. Therefore, it appears that manganese
concentrations detected in soil at the Site are naturally occurring.
Although manganese appears to be naturally occurring, H&H utilized the IHSB-Brownfields
Residential Soil Risk Calculator (November 2015 RSL) to further evaluate potential risks
associated with soil in the historical coal storage area. The risk calculator uses detected
concentrations of compounds (conservatively including naturally occurring metals) to calculate a
cumulative excess lifetime incremental cancer risk (LICR) and a non-carcinogenic hazard index
(HI) values for a residential scenario.
Results of the risk calculations indicate that the cumulative LICR is 8.54 x 10-7 and the
cumulative HI is 0.64 for compounds detected in SB-6. The cumulative LICR is less than the 1
x10-6 to 1 x 10-4 acceptable risk range for carcinogenic effects and the HI is below the acceptable
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risk threshold of 1 for non-carcinogenic effects. Based on results of the cumulative risk
calculations, there is not a significant risk for soil in the former coal yard. The risk calculator
results are provided in Appendix C.
3.3 Groundwater Sampling
A temporary groundwater monitoring well (TMW-4) was installed south of the mill building
along Jordan Place to evaluate the potential for impacted groundwater migrating off-Site in that
direction. The location of the temporary monitoring well is depicted on Figure 2.
IET advanced the TMW-4 temporary monitor well boring with a track-mounted drill rig utilizing
DPT drilling methods. Continuous soil samples were collected from the boring using acetate
lined macrocore sleeves. The soil samples were described for lithologic purposes and inspected
for the presence of staining, unusual odors, and field screened for volatile organic vapors using a
calibrated PID. Field screening results did not identify obvious evidence of impact in soil
samples collected from the TMW-4 boring.
TMW-4 was installed with a 10 ft section of 1-inch diameter PVC well screen set to bracket the
water table and 23 ft of 1-inch PVC well riser to the ground surface. A sand filter pack was
placed from the bottom of the boring to approximately 2 ft above the top of the well screen and a
hydrated bentonite seal was placed from the top of the sand filter pack to the ground surface.
The boring log including field screening results and well construction details are included in
Appendix A.
Upon installation, the temporary monitoring well was allowed to equilibrate to static conditions
and a decontaminated electronic water level indicator was used to measure the depth to the water
table relative to the ground surface. The measured depth to water in the well was approximately
24.85 ft bgs. The well was then developed by removing volumes of water from the screened
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portion of the temporary well until field parameters had stabilized (pH ± 0.1 SU and conductivity
varies no more than 5%).
Following development, a groundwater sample was collected for laboratory analysis using low
flow/low stress purging techniques with a peristaltic pump and dedicated polyethylene tubing.
The intake point of the pump tubing was placed in the approximate mid-portion of the well
screen and groundwater was removed at a rate of approximately 200 milliliters per minute. A
water quality meter was utilized to collect measurements of pH, temperature, dissolved oxygen,
oxidation reduction potential, turbidity, and specific conductivity at 3-5 minute intervals during
the purging process. Purging was considered complete when field parameters stabilized (pH ±
0.1 SU and conductivity varied no more than 5%).
The groundwater sample was collected directly into laboratory supplied sample containers using
the “soda straw” method. The sample containers were labeled with the sample identification,
date, and requested analysis, placed in a laboratory supplied cooler with ice, and shipped via
overnight courier under chain-of-custody protocol to Con-Test Analytical Laboratory for
analysis of volatile organic compounds (VOCs) by EPA Method 8260B. The chain-of-custody
record and laboratory data sheets are provided in Appendix A.
Following sample collection, the monitoring well was properly abandoned by IET personnel and
the well location was recorded using a hand-held GPS unit.
3.4 Groundwater Sample Results
Laboratory analytical results indicate that no VOCs were detected above laboratory reporting
limits in the groundwater sample collected south of the mill building.
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3.5 Indoor Air Assessment
To evaluate the potential for sub-slab vapors to pose an indoor air concern for the lower level of
the mill building, H&H collected two indoor air samples (IAS-2 and IAS-3) for laboratory
analysis. The indoor air samples were collected adjacent to the previous sub-slab vapor sample
locations (SV-02 and SV-03). Additionally, one exterior background sample (BAS-2) was
collected upwind during the indoor air sampling event for comparison of indoor air compound
concentrations to ambient outdoor air concentrations. The indoor, outdoor, and previous sub-
slab vapor sample locations are depicted on Figure 2.
In order to collect the indoor air samples under conservative conditions, during sample
collection, the windows of the building were closed and building ingress and egress were limited
to that necessary for sample collection and monitoring. The background and indoor air samples
were collected using laboratory supplied, 6-liter stainless steel sample canisters (i.e., Summas)
connected to in-line flow controllers with a laboratory certified vacuum gauge. The flow
controllers were set so that the air samples were collected over an 8-hour period. A 3 ft long
sampling cane was connected to the flow controller so that the sample intake point was
approximately 5 ft above grade (typical breathing zone height) when the sample canister was set
on its base.
During the sampling activities, indoor/outdoor air pressure differential was measured near the
start, middle, and end of the 8-hour sampling period using a manometer sensitive to 0.001 inches
of water. In addition, atmospheric conditions were also recorded near the start, middle, and end
of the sampling period by an on-Site weather station set in an open area east of the mill building.
Pressure differential measurements indicate that outdoor pressure was higher than indoor
pressure (up to 0.012 inches of water) for the duration of the sampling event. Wind direction
was predominantly from the south and ranged in speed from approximately 2 mph to 6 mph.
Barometric pressure decreased over the course of the sampling event from 29.92 inches of Hg to
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29.80 inches of Hg. Differential pressure measurements and atmospheric condition
measurements are summarized in Appendix D.
Prior to and after the collection of the indoor and background air samples, vacuum in the
canisters was measured using a laboratory-supplied vacuum gauge. The starting and ending
vacuum in each canister were recorded by sampling personnel and documented on the sample
chain of custody. The sample canisters were shipped under standard chain-of-custody protocols
to Con-Test Analytical Laboratory for analysis of 1,4-dichlorobenzene and naphthalene by EPA
Method TO-15, which are the only two compounds detected above screening levels in previous
sub-slab vapor samples SV-02 and SV-03. The laboratory analytical report and chain of custody
record are provided as Appendix A.
3.6 Indoor Air Results
Analytical results of the indoor air sample analyses are summarized in Table 3. The current
redevelopment plans for the mill building are for non-residential uses only. Therefore, the
results were compared to DEQ DWM Non-Residential Indoor Air Screening Levels (IASLs).
The analytical results indicate that naphthalene was detected at concentrations above laboratory
reporting limits in both IAS-2 (0.87 µg/m3) and IAS-3 (3.0 µg/m3). The naphthalene detection in
IAS-3 slightly exceeds the Non-Residential IASL of 2.63 µg/m3. In addition to naphthalene, a
trace level of 1,4-dichlorobenzene (0.068 J µg/m3) was detected at a concentration above the
laboratory method detection limit in IAS-3, but below the Non-Residential IASL of 11.1 µg/m3.
A trace level of naphthalene (0.16 J µg/m3) was also detected above the laboratory method
detection limit in the upwind background air sample (BAS-2). 1,4-Dichlorobenzene was not
detected above laboratory reporting limits in indoor air sample IAS-2 or in the background air
sample. Please note that the “J flag” designations indicate that the compounds were detected
above the laboratory method detection limit, but below the laboratory reporting limit resulting in
laboratory estimated concentrations.
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The default DEQ IHSB IASLs are conservative and are based upon a LICR of 1 x 10-5 for
potential carcinogenic effects and a HI of 0.2 for potential non-carcinogenic effects. Vapor
intrusion mitigation for occupied industrial/commercial structures is not typically considered
unless the LICR exceeds 1 x 10-4 for potential carcinogenic effects and/or a HI exceeds 1 for
potential non-carcinogenic effects. Because a low level of naphthalene was detected above the
Non-Residential IASL in IAS-3, H&H utilized the IHSB Brownfields Vapor Intrusion Calculator
to further evaluate potential risks to future occupants in the lower level of the mill building.
Please note that the assumptions used in the calculations are based upon standard, conservative,
default exposure scenarios which include a person working at the Site 250 days per year for 25
years and 8 hours per day.
Risk calculator results for compound concentrations detected in the indoor air samples collected
in the lower level of the mill building indicate that under a non-residential use scenario the
cumulative LICR for potential carcinogenic risk is 8.4 x 10-6 and the cumulative HI for potential
non-carcinogenic risk is 0.23, which are within the acceptable LICR risk range (1 x10-6 and 1 x
10-4) and below an HI of 1.
Although current plans for redevelopment of the mill building do not include residential use, the
risk calculator was also used to evaluate cumulative risks under a residential scenario to provide
an even more conservative evaluation. Residential risk calculator results indicate that the
cumulative LICR is 3.7 x 10-5 and the cumulative HI is 0.96 which are also within the acceptable
LICR range and below a HI of 1. Risk calculator results are provided in Appendix C.
4.0 Conclusions and Recommendation
H&H has completed Brownfields Assessment activities on the Chadbourn Mill property located
at 451 Jordan Place and 2625 N. Davidson Street in Charlotte, Mecklenburg County, North
Carolina. The assessment activities included soil, groundwater, and indoor air sampling to
further evaluate potential impacts associated with historical mill operations and potential risks
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associated with redevelopment of the Site. A summary of the Brownfields Assessment results is
provided below.
No SVOCs were detected above laboratory reporting limits in the soil sample collected in
the historical coal storage area located east of the boiler building. Several metals were
detected at concentrations above laboratory reporting limits in the soil sample.
Manganese was detected above the Non-Residential PSRG, but is consistent with
manganese concentrations detected in other soil samples collected at the Site and regional
background levels. Results of cumulative risk calculations using the sample data indicate
a cumulative LICR within the acceptable risk range and a cumulative HI less than 1 for a
residential scenario.
Laboratory analytical results for the groundwater sample collected south of the mill
building indicate that no compounds were detected above laboratory reporting limits.
Based on analytical data for groundwater samples collected at the Site, it appears that
chlorinated solvent impacts in shallow groundwater are limited to the vicinity of the
former dye house and do not extend off-Site to the southwest. Additional groundwater
assessment at the Site is not warranted.
Results of analysis of the indoor air samples collected in the lower level of the mill
building indicate that a low level of naphthalene was detected slightly above the DWM
Non-Residential IASL in one sample. Cumulative risk calculations indicate that the
cumulative LICR is within the acceptable range and the cumulative HI is less than 1
under residential and non-residential scenarios.
H&H recommends that impacts identified at the Site during these and previous assessment
activities be managed in accordance with an approved EMP. Results of the recent Brownfields
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9
.
6
5
.
8
400
8
0
0
B
R
L
-
5
0
1
6
A
Ma
n
g
a
n
e
s
e
1,
6
0
0
2
,
8
0
0
2
5
0
1
,
3
0
0
1
,
4
0
0
1
,
0
0
0
5
9
0
3
7
0
360
5
,
2
0
0
8
.
0
-
3
,
3
9
4
5
9
4
B
Me
r
c
u
r
y
<0
.
0
3
5
<
0
.
0
3
9
<
0
.
0
3
2
<
0
.
0
3
4
<
0
.
0
3
0
0.
0
1
9
0
.
0
4
2
<0
.
0
3
7
2.20
3
.
1
3
0
.
0
3
-
0
.
5
2
0
.
1
2
1
A
Ni
c
k
e
l
<8
.
7
45
<7
.
8
<
8
.
4
38
5
.
9
<8
.
1
<
8
.
7
300
4
,
4
0
0
B
R
L
-
1
5
0
2
3
A
Si
l
v
e
r
<0
.
1
5
0.
2
7
<0
.
1
4
<
0
.
1
5
<
0
.
1
3
0.
0
1
5
<0
.
1
4
0.
2
3
7
8
.
0
1
,
1
6
0
B
R
L
-
5
.
0
N
E
C
Th
a
l
l
i
u
m
0
.
1
1
0
.
6
3
<0
.
1
0
<
0
.
1
1
<
0
.
0
9
4
0.
0
3
2
0
.
1
6
0
.
2
3
0
.
1
5
6
2
.
4
0
<
0
.
1
-
1
.
8
N
E
D
Zi
n
c
5
2
1
2
0
<1
6
28
9
4
3
9
<1
6
22
4
,
6
0
0
7
0
,
0
0
0
2
5
-
1
2
4
5
6
A
No
t
e
s
:
1)
N
o
r
t
h
C
a
r
o
l
i
n
a
D
e
p
a
r
t
m
e
n
t
o
f
E
n
v
i
r
o
n
m
e
n
t
a
l
Q
u
a
l
i
t
y
(
D
E
Q
)
I
n
a
c
t
i
v
e
H
a
z
a
r
d
o
u
s
S
i
t
e
s
B
r
a
n
c
h
(
I
H
S
B
)
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
s
(
P
S
R
G
s
)
(
A
p
r
i
l
2
0
1
6
)
.
2 ) R
a
n
g e
a
n
d
m
e
a
n
v
a
l
u
e
s
o
f
b
a
c
k
g ro
u
n
d
m
e
t
a
l
s
f
o
r
N
o
r
t
h
C
a
r
o
l
i
n
a
s
o
i
l
s
t
a
k
e
n
f
r
o
m
El
e
m
e
n
t
s
i
n
N
o
r
t
h
A
m
e
r
i
c
a
n
S
o
i
l
s
b y D
r
a
g un
a
n
d
C
h
e
k
i
r
i
,
2
0
0
5
.
Re
f
.
A.
N
o
r
t
h
C
a
r
o
l
i
n
a
s
o
i
l
s
B.
S
o
u
t
h
e
a
s
t
e
r
n
U
S
A
s
o
i
l
s
C.
S
o
i
l
s
o
f
t
h
e
c
o
n
t
e
r
m
i
n
o
u
s
U
S
A
D.
M
a
j
o
r
-
a
n
d
T
r
a
c
e
-
E
l
e
m
e
n
t
C
o
n
c
e
n
t
r
a
t
i
o
n
s
i
n
S
o
i
l
s
f
r
o
m
T
w
o
C
o
n
t
i
n
e
n
t
i
a
l
-
S
c
a
l
e
T
r
a
n
s
e
c
t
s
o
f
t
h
e
U
n
i
t
e
d
S
t
a
t
e
s
a
n
d
C
a
n
a
d
a
,
U
.
S
.
D
e
p
a
r
t
m
e
n
t
o
f
I
n
t
e
r
i
o
r
,
U
.
S
.
G
e
o
l
o
g
i
c
S
u
r
v
e
y
.
O
p
e
n
-
F
i
l
e
R
e
p
o
r
t
2
0
0
5
-
1
2
5
3
,
T
a
b
l
e
3
.
2
0
0
5
.
On
l
y
c
o
m
p
o
u
n
d
s
d
e
t
e
c
t
e
d
i
n
a
t
l
e
a
s
t
o
n
e
s
a
m
p
l
e
a
r
e
s
h
o
w
n
.
So
i
l
c
o
n
c
e
n
t
r
a
t
i
o
n
s
a
r
e
r
e
p
o
r
t
e
d
i
n
m
i
l
l
i
g
r
a
m
s
p
e
r
k
i
l
o
g
r
a
m
(
m
g
/
k
g
)
.
La
b
o
r
a
t
o
r
y
a
n
a
l
y
t
i
c
a
l
m
e
t
h
o
d
s
a
r
e
s
h
o
w
n
i
n
p
a
r
e
n
t
h
e
s
e
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
s
;
S
V
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
;
H
S
L
=
H
a
z
a
r
d
o
u
s
S
i
t
e
L
i
s
t
NA
=
N
o
t
A
p
p
l
i
c
a
b
l
e
o
r
N
o
t
A
n
a
l
y
z
e
d
;
N
E
=
n
o
t
e
s
t
a
b
l
i
s
h
e
d
;
B
R
L
=
b
e
l
o
w
r
e
p
o
r
t
i
n
g
l
i
m
i
t
;
f
t
b
g
s
=
f
e
e
t
b
e
l
o
w
t
h
e
g
r
o
u
n
d
s
u
r
f
a
c
e
Ba
c
k
g
r
o
u
n
d
mg
/
k
g
Residential PSRGs (1) Industrial/ Commercial PSRGs (1)Regional Background Metals in Soil (2)
S:\
A
A
A
-
M
a
s
t
e
r
P
r
o
j
e
c
t
s
\
F
a
i
s
o
n
-
F
A
I
\
F
A
I
-
0
2
8
C
h
a
d
b
o
u
r
n
M
i
l
l
-
C
h
a
r
l
o
t
t
e
\
B
r
o
w
n
f
i
e
l
d
s
\
B
F
A
s
s
e
s
s
m
e
n
t
R
e
p
o
r
t
\
T
a
b
l
e
s
\
S
o
i
l
a
n
d
G
W
_
D
a
t
a
T
a
b
l
e
(
c
o
m
p
r
e
h
e
n
s
i
v
e
)
.
x
l
s
m
2/9
/
2
0
1
7
Table 1 (Page 1 of 1)Hart & Hickman, PC
Ta
b
l
e
2
Su
m
m
a
r
y
o
f
G
r
o
u
n
d
w
a
t
e
r
A
n
a
l
y
t
i
c
a
l
D
a
t
a
Fo
r
m
e
r
C
h
a
d
b
o
u
r
n
M
i
l
l
45
1
J
o
r
d
a
n
P
l
a
c
e
Ch
a
r
l
o
t
t
e
,
N
o
r
t
h
C
a
r
o
l
i
n
a
H&
H
J
o
b
N
o
.
F
A
I
-
0
2
8
Lo
c
a
t
i
o
n
Bo
i
l
e
r
B
u
i
l
d
i
n
g
D
y
e
H
o
u
s
e
D
o
w
n
g
r
a
d
i
e
n
t
So
u
t
h
o
f
M
i
l
l
Bu
i
l
d
i
n
g
Sa
m
p
l
e
I
D
TM
W
-
1
T
M
W
-
2
T
M
W
-
3
T
M
W
-
4
Sa
m
p
l
e
D
a
t
e
9/
3
0
/
2
0
1
6
1
0
/
3
/
2
0
1
6
9
/
3
0
/
2
0
1
6
1
/
2
7
/
2
0
1
7
Un
i
t
s
VO
C
s
(
8
2
6
0
B
)
Br
o
m
o
d
i
c
h
l
o
r
o
m
e
t
h
a
n
e
0.
8
0
<0
.
5
0
0.
9
6
<0
.
5
0
0.
6
8
.
7
6
3
8
.
2
Ch
l
o
r
o
f
o
r
m
2
.
2
<2
.
0
2.
4
<2
.
0
70
8
.
1
4
3
5
.
5
Tr
i
c
h
l
o
r
o
e
t
h
e
n
e
<1
.
0
11
<1
.
0
<1
.
0
3
1
.
0
4
4
.
3
5
SV
O
C
s
(
8
2
7
0
D
)
AL
L
B
R
L
AL
L
B
R
L
A
L
L
B
R
L
N
A
-
-
-
-
-
-
HS
L
M
e
t
a
l
s
(
6
0
2
0
A
-
B
/
7
4
7
0
A
)
Ch
r
o
m
i
u
m
3.
0
4.
3
2
.
6
N
A
1
0
N
S
N
S
Le
a
d
<2
.
0
2.
7
<2
.
0
NA
1
5
N
S
N
S
Ma
n
g
a
n
e
s
e
35
2,
5
0
0
9
4
NA
5
0
N
S
N
S
No
t
e
s
:
1)
N
o
r
t
h
C
a
r
o
l
i
n
a
D
e
p
a
r
t
m
e
n
t
o
f
E
n
v
i
r
o
n
m
e
n
t
a
l
Q
u
a
l
i
t
y
(
D
E
Q
)
1
5
A
N
o
r
t
h
C
a
r
o
l
i
n
a
A
d
m
i
n
i
s
t
r
a
t
i
v
e
C
o
d
e
0
2
L
.
0
2
0
2
G
r
o
u
n
d
w
a
t
e
r
Q
u
a
l
i
t
y
S
t
a
n
d
a
r
d
2)
D
E
Q
D
i
v
i
s
i
o
n
o
f
W
a
s
t
e
M
a
n
a
g
e
m
e
n
t
(
D
W
M
)
R
e
s
i
d
e
n
t
i
a
l
V
a
p
o
r
I
n
t
r
u
s
i
o
n
G
r
o
u
n
d
w
a
t
e
r
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
(
G
W
S
L
s
)
(
M
a
r
c
h
2
0
1
6
)
3)
D
E
Q
D
W
M
N
o
n
-
R
e
s
i
d
e
n
t
i
a
l
V
a
p
o
r
I
n
t
r
u
s
i
o
n
G
W
S
L
s
(
M
a
r
c
h
2
0
1
6
)
On
l
y
t
h
o
s
e
c
o
m
p
o
u
n
d
s
d
e
t
e
c
t
e
d
i
n
a
t
l
e
a
s
t
o
n
e
s
a
m
p
l
e
s
h
o
w
n
a
b
o
v
e
Bo
l
d
i
n
d
i
c
a
t
e
s
a
n
e
x
c
e
e
d
a
n
c
e
i
n
t
h
e
N
C
A
C
2
L
G
r
o
u
n
d
w
a
t
e
r
S
t
a
n
d
a
r
d
Un
d
e
r
l
i
n
e
i
n
d
i
c
a
t
e
s
a
n
e
x
c
e
e
d
a
n
c
e
i
n
t
h
e
D
E
Q
D
W
M
R
e
s
i
d
e
n
t
i
a
l
G
W
S
L
Hi
g
h
l
i
g
h
t
i
n
d
i
c
a
t
e
s
a
n
e
x
c
e
e
d
a
n
c
e
o
f
t
h
e
D
E
Q
D
W
M
N
o
n
-
R
e
s
i
d
e
n
t
i
a
l
G
W
S
L
Me
t
h
o
d
n
u
m
b
e
r
f
o
l
l
o
w
s
p
a
r
a
m
e
t
e
r
i
n
p
a
r
e
n
t
h
e
s
i
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
s
;
S
V
O
C
s
=
S
e
m
i
-
V
O
C
s
;
H
S
L
=
H
a
z
a
r
d
o
u
s
S
u
b
s
t
a
n
c
e
L
i
s
t
;
B
R
L
=
b
e
l
o
w
l
a
b
o
r
a
t
o
r
y
r
e
p
o
r
t
i
n
g
l
i
m
i
t
s
NA
=
n
o
t
a
n
a
l
y
z
e
d
;
N
S
=
n
o
t
s
p
e
c
i
f
i
e
d
NC
A
C
2
L
Gr
o
u
n
d
w
a
t
e
r
St
a
n
d
a
r
d
(1
)
µg/
L
DWM Vapor Intrusion GWSLs Residential (2) Non-Residential (3)
S:
\
A
A
A
-
M
a
s
t
e
r
P
r
o
j
e
c
t
s
\
F
a
i
s
o
n
-
F
A
I
\
F
A
I
-
0
2
8
C
h
a
d
b
o
u
r
n
M
i
l
l
-
C
h
a
r
l
o
t
t
e
\
B
r
o
w
n
f
i
e
l
d
s
\
B
F
A
s
s
e
s
s
m
e
n
t
R
e
p
o
r
t
\
T
a
b
l
e
s
\
S
o
i
l
a
n
d
G
W
_
D
a
t
a
T
a
b
l
e
(
c
o
m
p
r
e
h
e
n
s
i
v
e
)
.
x
l
s
m
2/1
4
/
2
0
1
7
Table 2 Hart & Hickman, PC
Ta
b
l
e
3
(
P
a
g
e
1
o
f
2
)
Su
m
m
a
r
y
o
f
I
n
d
o
o
r
a
n
d
A
m
b
i
e
n
t
A
i
r
A
n
a
l
y
t
i
c
a
l
D
a
t
a
Fo
r
m
e
r
C
h
a
d
b
o
u
r
n
M
i
l
l
45
1
J
o
r
d
a
n
P
l
a
c
e
Ch
a
r
l
o
t
t
e
,
N
o
r
t
h
C
a
r
o
l
i
n
a
H&
H
J
o
b
N
o
.
F
A
I
-
0
2
8
A
c
e
t
o
n
e
B
e
n
z
e
n
e
2
-
B
u
t
a
n
o
n
e
(
M
E
K
)
C
a
r
b
o
n
D
i
s
u
l
f
i
d
e
C
a
r
b
o
n
T
e
t
r
a
c
h
l
o
r
i
d
e
C
h
l
o
r
o
f
o
r
m
C
h
l
o
r
o
m
e
t
h
a
n
e
1
,
4
-
D
i
c
h
l
o
r
o
b
e
n
z
e
n
e
D
i
c
h
l
o
r
o
d
i
f
l
u
o
r
o
m
e
t
h
a
n
e
(
F
r
e
o
n
1
2
)
E
t
h
a
n
o
l
Ethyl Acetate Ethylbenzene 4-Ethyltoluene Heptane Hexane 2-Hexanone (MBK)Isopropanol
IA
S
-
1
B
o
i
l
e
r
B
u
i
l
d
i
n
g
0
9
/
3
0
/
1
6
12
.
0
0
.
3
6
1
.
5
J
<1
.
1
0.
4
3
0
.
0
6
9
J
1
.
3
0
.
0
6
8
J
0
.
6
7
L
-
0
3
5
.
5
<0.13 0.13 J
0
.
0
6
6
J
0
.
5
7
0
.
9
0
J
0
.
3
3
0
.
7
7
J
IA
S
-
2
M
i
l
l
B
u
i
l
d
i
n
g
0
1
/
2
7
/
1
7
NA
N
A
N
A
N
A
N
A
N
A
N
A
<0
.
2
1
NA
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
IA
S
-
3
M
i
l
l
B
u
i
l
d
i
n
g
0
1
/
2
7
/
1
7
NA
N
A
N
A
N
A
N
A
N
A
N
A
0
.
0
6
8
J
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
BA
S
-
1
U
p
w
i
n
d
0
9
/
3
0
/
1
6
17
.
0
0
.
4
1
2
.
2
J
0
.
7
6
J
0
.
4
2
0
.
0
7
5
J
1
.
3
0
.
8
2
0
.
7
0
L
-
0
3
8
.
0
0
.
6
3
0
.
1
7
0
.
0
9
0
J
0
.
2
9
0
.
6
7
J
0
.
3
4
1
.
1
J
BA
S
-
2
U
p
w
i
n
d
0
1
/
2
7
/
1
7
NA
N
A
N
A
N
A
N
A
N
A
N
A
<0
.
2
1
NA
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
6,
4
7
0
3
.
6
0
1
,
0
4
0
1
4
6
4
.
6
8
1
.
2
2
1
8
.
8
2
.
5
5
2
0
.
9
N
S
1
4
.
6
1
1
.
2
N
S
N
S
1
4
6
6
.
2
6
4
1
.
7
27
,
2
0
0
1
5
.
7
4
,
3
8
0
6
1
3
2
0
.
4
5
.
3
3
7
8
.
8
1
1
.
1
8
7
.
6
N
S
6
1
.
3
4
9
.
1
N
S
N
S
6
1
3
2
6
.
3
1
7
5
No
t
e
s
:
1)
N
o
r
t
h
C
a
r
o
l
i
n
a
D
e
p
a
r
t
m
e
n
t
o
f
E
n
v
i
r
o
n
m
e
n
t
a
l
Q
u
a
l
i
t
y
(
D
E
Q
)
D
i
v
i
s
i
o
n
o
f
W
a
s
t
e
M
a
n
a
g
e
m
e
n
t
(
D
W
M
)
R
e
s
i
d
e
n
t
i
a
l
I
n
d
o
o
r
A
i
r
a
n
d
C
r
a
w
l
sp
a
c
e
S
c
r
e
e
n
i
n
g
L
e
v
e
l
s
(
I
A
S
L
s
)
(
O
c
t
o
b
e
r
2
0
1
6
)
2)
N
o
r
t
h
C
a
r
o
l
i
n
a
D
E
Q
D
W
M
N
o
n
-
R
e
s
i
d
e
n
t
i
a
l
I
A
S
L
s
(
O
c
t
o
b
e
r
2
0
1
6
)
On
l
y
c
o
m
p
o
u
n
d
s
d
e
t
e
c
t
e
d
i
n
a
t
l
e
a
s
t
o
n
e
s
a
m
p
l
e
s
h
o
w
n
Bo
l
d
i
n
d
i
c
a
t
e
s
c
o
n
c
e
n
t
r
a
t
i
o
n
e
x
c
e
e
d
s
D
W
M
R
e
s
i
d
e
n
t
i
a
l
I
n
d
o
o
r
A
i
r
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
O
c
t
o
b
e
r
2
0
1
6
t
a
b
l
e
)
Un
d
e
r
l
i
n
e
i
n
d
i
c
a
t
e
s
c
o
n
c
e
n
t
r
a
t
i
o
n
e
x
c
e
e
d
s
D
W
M
R
e
s
i
d
e
n
t
i
a
l
a
n
d
N
o
n
-
R
e
s
i
d
e
n
t
i
a
l
I
n
d
o
o
r
A
i
r
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
O
c
t
o
b
e
r
2
0
1
6
t
a
b
l
e
)
µg
/
m
3 =
m
i
c
r
o
g
r
a
m
s
p
e
r
c
u
b
i
c
m
e
t
e
r
;
N
S
=
N
o
t
S
p
e
c
i
f
i
e
d
;
N
A
=
N
o
t
A
n
a
l
y
z
e
d
J
=
d
e
t
e
c
t
e
d
c
o
n
c
e
n
t
r
a
t
i
o
n
i
s
a
b
o
v
e
t
h
e
l
a
b
o
r
a
t
o
r
y
m
e
t
h
o
d
d
e
t
e
c
t
i
o
n
l
i
m
i
t
,
b
u
t
b
e
l
o
w
t
h
e
l
a
b
o
r
a
t
o
r
y
r
e
p
o
r
t
i
n
g
l
i
m
i
t
.
T
h
e
r
e
f
o
r
e
,
t
h
e
r
e
p
o
r
t
e
d
c
o
n
c
e
n
t
r
a
t
i
o
n
i
s
a
n
e
s
t
i
m
a
t
e
d
v
a
l
u
e
.
V-
0
6
=
c
o
n
t
i
n
u
i
n
g
c
a
l
i
b
r
a
t
i
o
n
d
i
d
n
o
t
m
e
e
t
m
e
t
h
o
d
s
p
e
c
i
f
i
c
a
t
i
o
n
s
a
n
d
v
a
l
u
e
i
s
b
i
a
s
e
d
o
n
t
h
e
h
i
g
h
s
i
d
e
.
L-
0
3
=
l
a
b
o
r
a
t
o
r
y
f
o
r
t
i
f
i
e
d
b
l
a
n
k
/
l
a
b
o
r
a
t
o
r
y
c
o
n
t
r
o
l
s
a
m
p
l
e
r
e
c
o
v
e
r
y
is
o
u
t
s
i
d
e
o
f
c
o
n
t
r
o
l
l
i
m
i
t
s
.
R
e
p
o
r
t
e
d
v
a
l
u
e
f
o
r
t
h
i
s
c
o
m
po
u
n
d
i
s
l
i
k
e
l
y
t
o
b
e
b
i
a
s
e
d
o
n
t
h
e
l
o
w
s
i
d
e
.
µg
/
m
3
No
n
-
R
e
s
i
d
e
n
t
i
a
l
I
n
d
o
o
r
A
i
r
a
n
d
C
r
a
w
l
s
p
a
c
e
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(
2
)
(T
C
R
=
1
x
1
0
-5
a
n
d
T
H
Q
=
0
.
2
)
A
n
a
l
y
t
i
c
a
l
M
e
t
h
o
d
Re
s
i
d
e
n
t
i
a
l
I
n
d
o
o
r
A
i
r
a
n
d
C
r
a
w
l
s
p
a
c
e
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(1
)
(T
C
R
=
1
x
1
0
-5
a
n
d
T
H
Q
=
0
.
2
)
TO
-
1
5
S
a
m
p
l
e
I
D
S
a
m
p
l
i
n
g
D
a
t
e
S
a
m
p
l
e
L
o
c
a
t
i
o
n
Fil
e
:
S
:
\
A
A
A
-
M
a
s
t
e
r
P
r
o
j
e
c
t
s
\
F
a
i
s
o
n
-
F
A
I
\
F
A
I
-
0
2
8
C
h
a
d
b
o
u
r
n
M
i
l
l
-
C
h
a
r
l
o
t
t
e
\
B
r
o
w
n
f
i
e
l
d
s
\
B
F
A
s
s
e
s
s
m
e
n
t
R
e
p
o
r
t
\
T
a
b
l
e
s
\
V
I
D
a
t
a
T
a
ble
s
(
c
o
m
p
r
e
h
e
n
s
i
v
e
)
.
x
l
s
V
I
D
a
t
a
T
a
b
l
e
s
(
c
o
m
p
r
e
h
e
n
s
i
v
e
)
.
x
l
s
Da
t
e
:
2
/
1
4
/
2
0
1
7
Table 3 (Page 1 of 2)Hart & Hickman, PC
Ta
b
l
e
3
(
P
a
g
e
2
o
f
2
)
Su
m
m
a
r
y
o
f
I
n
d
o
o
r
a
n
d
A
m
b
i
e
n
t
A
i
r
A
n
a
l
y
t
i
c
a
l
D
a
t
a
Fo
r
m
e
r
C
h
a
d
b
o
u
r
n
M
i
l
l
45
1
J
o
r
d
a
n
P
l
a
c
e
Ch
a
r
l
o
t
t
e
,
N
o
r
t
h
C
a
r
o
l
i
n
a
H&
H
J
o
b
N
o
.
F
A
I
-
0
2
8
M
e
t
h
y
l
e
n
e
C
h
l
o
r
i
d
e
4
-
M
e
t
h
y
l
-
2
-
p
e
n
t
a
n
o
n
e
(
M
I
B
K
)
N
a
p
h
t
h
a
l
e
n
e
P
r
o
p
e
n
e
(
P
r
o
p
y
l
e
n
e
)
S
t
y
r
e
n
e
T
e
t
r
a
c
h
l
o
r
o
e
t
h
e
n
e
(
P
C
E
)
T
o
l
u
e
n
e
T
r
i
c
h
l
o
r
o
e
t
h
y
l
e
n
e
(
T
C
E
)
T
r
i
c
h
l
o
r
o
f
l
u
o
r
o
m
e
t
h
a
n
e
(
F
r
e
o
n
1
1
)
1,1,2-Trichloro-1,2,2-trifluoroethane 1,2,4-Trimethylbenzene 1,3,5-Trimethylbenzene Vinyl Acetate Xylene, m- & p-Xylene, o-
IA
S
-
1
B
o
i
l
e
r
B
u
i
l
d
i
n
g
0
9
/
3
0
/
1
6
0.
6
4
J
<0
.
1
4
0.
1
9
0
.
7
3
J
,
V
-
0
6
0
.
0
5
7
J
0
.
1
5
J
0
.
7
9
0
.
2
0
1
.
1
0
.
5
2
J
0
.
2
1
0
.
0
5
9
J
1
.
8
J
,
L
-
0
3
0
.
4
2
0
.
1
7
IA
S
-
2
M
i
l
l
B
u
i
l
d
i
n
g
0
1
/
2
7
/
1
7
NA
N
A
0.
8
7
NA
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
IA
S
-
3
M
i
l
l
B
u
i
l
d
i
n
g
0
1
/
2
7
/
1
7
NA
N
A
3.
0
NA
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
BA
S
-
1
U
p
w
i
n
d
0
9
/
3
0
/
1
6
0.
7
4
J
0
.
0
9
8
J
0
.
3
<2
.
4
0.
3
2
0
.
4
5
0
.
9
5
<0
.
1
9
1.
1
0
.
5
2
J
0
.
3
5
0
.
1
0
J
2
.
6
L
-
0
3
0
.
6
0
.
2
6
BA
S
-
2
U
p
w
i
n
d
0
1
/
2
7
/
1
7
NA
N
A
0
.
1
6
J
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
N
A
12
5
6
2
6
0
.
6
2
6
6
2
6
2
0
9
8
.
3
4
1
,
0
4
0
0
.
4
1
7
N
S
6
,
2
6
0
1
.
4
6
N
S
4
1
.
7
2
0
.
9
2
0
.
9
52
6
2
,
6
3
0
2
.
6
3
2
,
6
3
0
8
7
6
3
5
.
0
4
,
3
8
0
1
.
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5
N
S
2
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,
3
0
0
6
.
1
3
N
S
1
7
5
8
7
.
6
8
7
.
6
No
t
e
s
:
1)
N
o
r
t
h
C
a
r
o
l
i
n
a
D
e
p
a
r
t
m
e
n
t
o
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n
v
i
r
o
n
m
e
n
t
a
l
Q
u
a
l
i
t
y
(
D
E
Q
)
D
i
v
i
s
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o
n
o
f
W
a
s
t
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M
a
n
a
g
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m
e
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t
(
D
W
M
)
R
e
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t
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o
o
r
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i
r
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d
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r
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w
l
sp
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c
e
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r
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n
i
n
g
L
e
v
e
l
s
(
I
A
S
L
s
)
(
O
c
t
o
b
e
r
2
0
1
6
)
2)
N
o
r
t
h
C
a
r
o
l
i
n
a
D
E
Q
D
W
M
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o
n
-
R
e
s
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n
t
i
a
l
I
A
S
L
s
(
O
c
t
o
b
e
r
2
0
1
6
)
On
l
y
c
o
m
p
o
u
n
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e
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t
e
d
i
n
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p
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o
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n
Bo
l
d
i
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d
i
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a
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x
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d
s
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s
i
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n
t
i
a
l
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n
d
o
o
r
A
i
r
S
c
r
e
e
n
i
n
g
L
e
v
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l
(
O
c
t
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b
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r
2
0
1
6
t
a
b
l
e
)
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d
e
r
l
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i
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-
R
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s
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t
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n
d
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r
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c
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n
i
n
g
L
e
v
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l
(
O
c
t
o
b
e
r
2
0
1
6
t
a
b
l
e
)
µg
/
m
3 =
m
i
c
r
o
g
r
a
m
s
p
e
r
c
u
b
i
c
m
e
t
e
r
;
N
S
=
N
o
t
S
p
e
c
i
f
i
e
d
;
N
A
=
N
o
t
A
n
a
l
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z
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d
J
=
d
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.
T
h
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,
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m
a
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d
v
a
l
u
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.
V-
0
6
=
c
o
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t
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.
L-
0
3
=
l
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d
b
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m
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t
s
.
R
e
p
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r
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d
v
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l
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f
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r
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s
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d
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w
s
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e
.
µg
/
m
3
No
n
-
R
e
s
i
d
e
n
t
i
a
l
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n
d
o
o
r
A
i
r
a
n
d
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r
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w
l
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p
a
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e
S
c
r
e
e
n
i
n
g
L
e
v
e
l
(2
)
(T
C
R
=
1
x
1
0
-5
a
n
d
T
H
Q
=
0
.
2
)
S
a
m
p
l
e
I
D
S
a
m
p
l
i
n
g
D
a
t
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A
n
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c
a
l
M
e
t
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d
Re
s
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e
n
t
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d
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r
A
i
r
a
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d
C
r
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s
p
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S
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r
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e
n
i
n
g
L
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v
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l
(
1
)
(T
C
R
=
1
x
1
0
-5
a
n
d
T
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Q
=
0
.
2
)
TO
-
1
5
S
a
m
p
l
e
L
o
c
a
t
i
o
n
Fil
e
:
S
:
\
A
A
A
-
M
a
s
t
e
r
P
r
o
j
e
c
t
s
\
F
a
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-
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F
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-
0
2
8
C
h
a
d
b
o
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r
n
M
i
l
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-
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\
B
r
o
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n
f
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B
F
A
s
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p
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t
\
T
a
b
l
e
s
\
V
I
D
a
t
a
T
a
ble
s
(
c
o
m
p
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e
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e
n
s
i
v
e
)
.
x
l
s
V
I
D
a
t
a
T
a
b
l
e
s
(
c
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m
p
r
e
h
e
n
s
i
v
e
)
.
x
l
s
Da
t
e
:
2
/
1
4
/
2
0
1
7
Table 3 (Page 2 of 2)Hart & Hickman, PC
0 2000 4000
APPROXIMATE
SCALE IN FEET
N
U.S.G.S. QUADRANGLE MAP
QUADRANGLE
7.5 MINUTE SERIES (TOPOGRAPHIC)
CHARLOTTE EAST, NORTH CAROLINA 1991
TITLE
PROJECT
SITE LOCATION MAP
FORMER CHADBOURN MILL
451 JORDAN PLACE
CHARLOTTE, NORTH CAROLINA
DATE:
JOB NO:
REVISION NO:
FIGURE:
10-19-16 0
1FAI-028
SITE
Appendix A
Boring Logs
(FILL) Vesicular volcanic rock fill
(FILL) Moist, loose, tan, fine to medium silty SAND fillmaterial
(SM) Moist, loose to slightly firm, white, black, and brownsilty SAND, trace amounts of red clay
Bottom of borehole at 15.0 feet.
1.8
2.3
2.3
2.1
2.5
4.1
3.5
0.1
0.1
0.1
0.1
0.1
0.1
0.1
DRAWN BY:SQM
BORING COMPLETED:1/27/17
DRILLING CONTRACTOR:IET, Inc Remarks:
DRILL RIG/ METHOD:Powerprobe 9510 / DPT
SAMPLING METHOD:Macro-Core Hand augered to 5 ft bgs. Encounteredfirst native soils at 2.0' bgs. Soil samplecollected from 2-4 ft bgs for SVOCs,HSL metals plus hexavalent chromium.
BORING STARTED:1/27/17
LOGGED BY:SQM
TOTAL DEPTH: 15 ft.
TOP OF CASING ELEV:
DEPTH TO WATER:
DE
P
T
H
(f
t
)
DE
P
T
H
(f
t
)MATERIAL DESCRIPTION
LI
T
H
O
L
O
G
Y
SA
M
P
.
BK
G
.
OV
A
(
p
p
m
)
RE
C
O
V
E
R
Y
(
%
)
SA
M
P
L
E
T
Y
P
E
NU
M
B
E
R
BL
O
W
CO
U
N
T
S
(N
V
A
L
U
E
)
WELL DIAGRAM
Sheet 1 of 1
BORING NUMBER SB-6
PROJECT:Former Chadbourn Mill
JOB NUMBER:FAI-028
LOCATION:Charlotte, NC
WE
L
L
L
O
G
-
H
A
R
T
H
I
C
K
M
A
N
.
G
D
T
-
2
/
1
/
1
7
0
8
:
5
5
-
S
:
\
B
B
B
M
A
S
T
E
R
G
I
N
T
P
R
O
J
E
C
T
S
\
F
A
I
-
0
2
8
.
G
P
J
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
3334 Hillsborough Street
Raleigh, North Carolina 27607
919-847-4241(p) 919-847-4261(f)
0.0
2.5
5.0
7.5
10.0
12.5
15.0
0.0
2.5
5.0
7.5
10.0
12.5
15.0
(FILL) Vesicular volcanic rock fill
(FILL) Moist, loose, tan, fine to medium silty SAND fill material
(SM) Moist, loose to slightly firm, white, black, and brown siltySAND, trace amounts of red clay
No Recovery
(SM) Moist, loose to slightly firm, white, black, and brown siltySAND, trace amounts of red clay
Bottom of borehole at 15.0 feet.
DRAWN BY:SQM
BORING COMPLETED:1/27/17
DRILLING CONTRACTOR:IET, Inc Remarks:
DRILL RIG/ METHOD:Powerprobe 9510 / DPT
SAMPLING METHOD:Macro-Core Hand augered to 5 ft bgs. Encounteredfirst native soils at 2.0' bgs. No recoveryfrom 7 to 10' bgs
BORING STARTED:1/27/17
LOGGED BY:SQM
TOTAL DEPTH: 15 ft.
TOP OF CASING ELEV:
DEPTH TO WATER:
DE
P
T
H
(f
t
)
DE
P
T
H
(f
t
)
LI
T
H
O
L
O
G
Y
MATERIAL DESCRIPTION
RE
C
O
V
E
R
Y
(
%
)
SA
M
P
L
E
T
Y
P
E
NU
M
B
E
R
OV
A
(
p
p
m
)
BORING DIAGRAM
BK
G
.
SA
M
P
.
Sheet 1 of 1
BORING NUMBER SB-6B
PROJECT:Former Chadbourn Mill
JOB NUMBER:FAI-028
LOCATION:Charlotte, NC
BO
R
I
N
G
L
O
G
-
H
A
R
T
H
I
C
K
M
A
N
.
G
D
T
-
2
/
1
0
/
1
7
1
0
:
2
1
-
S
:
\
B
B
B
M
A
S
T
E
R
G
I
N
T
P
R
O
J
E
C
T
S
\
F
A
I
-
0
2
8
.
G
P
J
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
3334 Hillsborough Street
Raleigh, North Carolina 27607
919-847-4241(p) 919-847-4261(f)
0.0
2.5
5.0
7.5
10.0
12.5
15.0
0.0
2.5
5.0
7.5
10.0
12.5
15.0
Topsoil/grass/roots
(CLML) Moist, slightly firm, dull red silty CLAY, some tan mottling
with sand-sized black and white rock fragments at 8-8.5' bgs
(CSML) Moist, slightly firm, dull red sandy silty CLAY
(CSML) Wet, slightly firm to soft, dull red sandy silty CLAY
(CSML) Wet, soft, brown sandy silty CLAY, some black relict
structures at 28' bgs
(SC) Wet, soft, brown clayey SAND, trace silt-sized sediment
Bottom of borehole at 34.0 feet.
1" PVC Riser
Hydrated
BentoniteSeal
Sand Filter
Pack
1" PVC 0.01
SlottedScreen
0.0
0.1
0.1
0.1
0.1
0.1
1.9
2.0
1.9
2.4
2.6
1.8
DRAWN BY:SQM
DRILLING CONTRACTOR:IET, Inc Remarks:
DRILL RIG/ METHOD:Powerprobe 9510 / DPT
SAMPLING METHOD:Macro-Core Hand augered to 5 ft bgs.
LOGGED BY:SQM
BORING STARTED: 1/27/17
BORING COMPLETED: 1/27/17
TOTAL DEPTH: 34 ft.
TOP OF CASING ELEV:
DEPTH TO WATER: 24.85 ft.
DE
P
T
H
(f
t
)
DE
P
T
H
(f
t
)
LI
T
H
O
L
O
G
Y
MATERIAL DESCRIPTION
RE
C
O
V
E
R
Y
(
%
)
SA
M
P
L
E
T
Y
P
E
NU
M
B
E
R
OV
A
(
p
p
m
)
BORING DIAGRAM
BK
G
.
SA
M
P
.
Sheet 1 of 1
BORING NUMBER TMW-4
PROJECT:Former Chadbourn Mill
JOB NUMBER:FAI-028
LOCATION:Charlotte, NC
BO
R
I
N
G
L
O
G
-
H
A
R
T
H
I
C
K
M
A
N
.
G
D
T
-
2
/
1
0
/
1
7
1
3
:
2
7
-
S
:
\
B
B
B
M
A
S
T
E
R
G
I
N
T
P
R
O
J
E
C
T
S
\
F
A
I
-
0
2
8
.
G
P
J
2923 South Tryon Street-Suite 100
Charlotte, North Carolina 28203
704-586-0007(p) 704-586-0373(f)
3334 Hillsborough Street
Raleigh, North Carolina 27607
919-847-4241(p) 919-847-4261(f)
0
5
10
15
20
25
30
35
0
5
10
15
20
25
30
35
Appendix B
Laboratory Analytical Reports
Page 1 of 35
Table of Contents
Table of Contents
Sample Summary 3
Case Narrative 4
Sample Results 7
17A1315-01 7
17A1315-02 11
Sample Preparation Information 13
QC Data 14
Volatile Organic Compounds by GC/MS 14
B169410 14
Semivolatile Organic Compounds by GC/MS 19
B169206 19
Metals Analyses (Total) 24
B169221 24
B169315 25
Conventional Chemistry Parameters by EPA/APHA/SW-846 Methods (Total) 26
B169227 26
Flag/Qualifier Summary 27
Certifications 28
Chain of Custody/Sample Receipt 33
Page 2 of 35
Table of Contents
Page 3 of 35
Table of Contents
Page 4 of 35
Table of Contents
Page 5 of 35
Table of Contents
Page 6 of 35
Table of Contents
Page 7 of 35
Table of Contents
Page 8 of 35
Table of Contents
Page 9 of 35
Table of Contents
Page 10 of 35
Table of Contents
Page 11 of 35
Table of Contents
Page 12 of 35
Table of Contents
Page 13 of 35
Table of Contents
Page 14 of 35
Table of Contents
Page 15 of 35
Table of Contents
Page 16 of 35
Table of Contents
Page 17 of 35
Table of Contents
Page 18 of 35
Table of Contents
Page 19 of 35
Table of Contents
Page 20 of 35
Table of Contents
Page 21 of 35
Table of Contents
Page 22 of 35
Table of Contents
Page 23 of 35
Table of Contents
Page 24 of 35
Table of Contents
Page 25 of 35
Table of Contents
Page 26 of 35
Table of Contents
Page 27 of 35
Table of Contents
Page 28 of 35
Table of Contents
Page 29 of 35
Table of Contents
Page 30 of 35
Table of Contents
Page 31 of 35
Table of Contents
Page 32 of 35
Table of Contents
Page 33 of 35
Table of Contents
Page 34 of 35
Table of Contents
Page 35 of 35
Table of Contents
Page 1 of 13
Page 2 of 13
Page 3 of 13
Page 4 of 13
Page 5 of 13
Page 6 of 13
Page 7 of 13
Page 8 of 13
Page 9 of 13
Page 10 of 13
Page 11 of 13
Page 12 of 13
Page 13 of 13
Appendix C
IHSB Brownfields Risk Calculator Results
IH
S
B
‐BR
O
W
N
F
I
E
L
D
S
Re
s
i
d
e
n
t
i
a
l
So
i
l
Ri
s
k
Ca
l
c
u
l
a
t
o
r
(N
o
v
e
m
b
e
r
20
1
5
RS
L
)
C sa
t
(m
g
/
k
g
)
Co
n
t
a
m
i
n
a
n
t
C
A
S
No
.
Pr
e
l
i
m
i
n
a
r
y
Re
s
i
d
e
n
t
i
a
l
He
a
l
t
h
Ba
s
e
d
So
i
l
Re
m
e
d
i
a
t
i
o
n
Go
a
l
(P
S
R
G
)
(m
g
/
k
g
)
Ba
s
i
s
Si
t
e
So
i
l
Co
n
c
e
n
t
r
a
t
i
o
n
(m
g
/
k
g
)
Ca
n
c
e
r
Ri
s
k
N
o
n
‐
Cancer HQSample Location
Ar
s
e
n
i
c
,
In
o
r
g
a
n
i
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4
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)
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=
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(RA
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)
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Si
t
e
N
a
m
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,
S
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I
D
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t
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,
C
o
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n
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Sa
m
p
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:
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S
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f
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a
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A
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S
S
M
E
N
T
3
Selected (based on scenario)Selected (based on scenario)
No
t
e
:
T
h
i
s
s
e
c
t
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o
n
a
p
p
l
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e
s
t
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t
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h
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an
d
o
t
h
e
r
m
u
t
a
g
e
n
i
c
c
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e
m
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c
a
l
s
,
b
u
t
n
o
t
t
o
v
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y
l
ch
l
o
r
i
d
e
.
Ag
e
C
o
h
o
r
t
Ex
p
o
s
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r
e
Du
r
a
t
i
o
n
IU
R
So
u
r
c
e
*
RF
C
So
u
r
c
e
*
Mutagenic Indicator
1 25
Re
s
i
d
e
n
t
i
a
l
C
o
m
m
e
r
c
i
a
l
Re
s
i
d
e
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t
i
a
l
C
o
m
m
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i
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l
Ag
e
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d
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e
n
d
e
n
t
a
d
j
u
s
t
m
e
n
t
fa
c
t
o
r
10 3
In
d
o
o
r
A
i
r
Sc
r
e
e
n
i
n
g
Le
v
e
l
(
u
g
/
m
3
)
CR
H
Q
In
s
t
r
u
c
t
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o
n
s
Se
l
e
c
t
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p
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l
d
o
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t
En
t
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a
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e
t
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f
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a
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n
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s
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f
o
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p
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)
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t
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f
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-
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e
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s
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f
o
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m
p
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a
l
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l
a
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d
V
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h
a
z
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d
i
n
c
o
l
u
m
n
F
)
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S
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a
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l
a
t
o
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V
e
r
s
i
o
n
3
.
4
.
5
,
N
o
v
e
m
b
e
r
2
0
1
5
R
S
L
s
Page 1 of 1
Appendix D
Indoor Air Assessment Field Measurements
Ap
p
e
n
d
i
x
D
(
P
a
g
e
1
o
f
1
)
Su
m
m
a
r
y
o
f
A
t
m
o
s
p
h
e
r
i
c
C
o
n
d
i
t
i
o
n
s
Fo
r
m
e
r
C
h
a
d
b
o
u
r
n
M
i
l
l
Ch
a
r
l
o
t
t
e
,
N
o
r
t
h
C
a
r
o
l
i
n
a
H&
H
J
o
b
N
o
.
F
A
I
-
0
2
8
Sa
m
p
l
e
I
D
S
a
m
p
l
e
L
o
c
a
t
i
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n
S
U
M
M
A
I
D
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g
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l
a
t
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r
I
D
Ca
n
i
s
t
e
r
Pr
e
s
s
u
r
e
Ti
m
e
D
u
r
i
n
g
Ev
e
n
t
Ea
s
t
e
r
n
St
a
n
d
a
r
d
T
i
m
e
Te
m
p
.
°F
Pr
e
s
s
u
r
e
Di
f
f
e
r
e
n
t
i
a
l
(i
n
c
h
e
s
H
2 O)
Temp.o F Precipitation (inches)Barometric Pressure (inches Hg)Wind Direction Wind Speed (mph)
28
Be
g
i
n
n
i
n
g
8
:
1
0
N
A
N
A
4
5
0
.
0
0
29.92 →S2
19
Mi
d
d
l
e
1
2
:
1
0
N
A
N
A
5
0
0
.
0
0
29.86 ↘SW
6
6
E
n
d
1
6
:
1
0
NA
NA
5
2
0
.
0
0
29.80 ↘S 6
28
Be
g
i
n
n
i
n
g
8
:
1
4
4
9
0
.
0
0
8
17
Mi
d
d
l
e
1
2
:
1
4
6
0
0
.
0
0
9
5
E
n
d
1
6
:
1
4
67
0
.
0
1
2
29
Be
g
i
n
n
i
n
g
8
:
1
2
4
9
0
.
0
0
8
18
Mi
d
d
l
e
1
2
:
1
2
6
0
0
.
0
0
9
6
E
n
d
1
6
:
1
2
67
0
.
0
1
2
No
t
e
s
:
In
f
o
r
m
a
t
i
o
n
f
r
o
m
o
n
-
s
i
t
e
w
e
a
t
h
e
r
s
t
a
t
i
o
n
s
e
t
u
p
b
y
H
&
H
o
n
J
a
n
u
a
r
y
2
7
,
2
0
1
7
d
u
r
i
n
g
i
n
d
o
o
r
a
i
r
s
a
m
p
l
i
n
g
e
v
e
n
t
.
Th
e
s
y
m
b
o
l
↘ d
i
s
t
i
n
g
u
i
s
h
e
s
b
a
r
o
m
e
t
r
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c
p
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s
s
u
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a
s
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.
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s
i
t
i
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d
i
f
f
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r
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n
t
i
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l
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a
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s
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u
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s
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a
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e
i
n
s
i
d
e
p
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e
s
s
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r
e
.
NA
=
N
o
t
A
p
p
l
i
c
a
b
l
e
In
d
o
o
r
Outdoo r
19
6
3
3
5
2
5
12
4
5
3
3
4
9
BA
S
-
2
E
a
s
t
e
r
n
u
n
d
e
v
e
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o
p
e
d
a
r
e
a
19
8
0
3
3
5
0
IA
S
-
2
Lo
w
e
r
L
e
v
e
l
M
i
l
l
B
u
i
l
d
i
n
g
(a
d
j
a
c
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n
t
t
o
S
V
-
0
2
)
IA
S
-
3
Lo
w
e
r
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e
v
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l
M
i
l
l
B
u
i
l
d
i
n
g
(a
d
j
a
c
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n
t
t
o
S
V
-
0
3
)
Fil
e
:
S
:
\
A
A
A
-
M
a
s
t
e
r
P
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o
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e
c
t
s
\
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a
i
s
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n
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F
A
I
\
F
A
I
-
0
2
8
C
h
a
d
b
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a
r
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\
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bl
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s
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a
n
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l
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s
m
e
n
t
O
n
l
y
)
.
x
l
s
Da
t
e
:
2
/
9
/
2
0
1
7
Appendix D (Page 1 of 1)Hart & Hickman, PC