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AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Blvd., Suite 205 Fax – (919) 447-2751
Morrisville, NC 27560 www.amec.com
March 14, 2012
Mr. Tony Duque
NCDENR, Division of Waste Management
NC Brownfields Program
1646 Mail Service Center
Raleigh, NC 27699-1646
Subject: RESULTS OF AIR AND SUB SLAB VAPOR SAMPLING
FORMER GUILFORD MILLS HORNADAY ROAD FACILITY
5644 HORNADAY ROAD
GREENSBORO, NORTH CAROLINA
Dear Mr. Duque:
On behalf of Guilford Mills, Inc. and Tower Investments, LLC, attached are results of additional
sub-slab and indoor air sampling activities at the former Guilford Mills Facility located on
Hornaday Road in Greensboro, North Carolina. The sampling activities are associated with the
Brownfields Agreement obtained for the site from the North Carolina Department of
Environment and Natural Resources, Division of Waste Management, Brownfields Section. If
you have any questions regarding the report, please call Kathy Roush at (919) 447-2750 ext.
138.
Respectfully Submitted,
AMEC Environment & Infrastructure, Inc.
David Treadway Kathleen A. Roush, L.G., RSM
Project Manager Environmental Dept Manager
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Blvd., Suite 205 Fax – (919) 447-2751
Morrisville, NC 27560 www.amec.com
TABLE OF CONTENTS
1.0 INTRODUCTION ............................................................................................................ 1
2.0 CURRENT SITE USE AND SITE INSPECTION ........................................................... 2
3.0 SAMPLING ACTIVITIES ............................................................................................... 2
3.1 Sample Analysis .......................................................................................................... 2
3.2 Indoor Air Sampling ..................................................................................................... 3
3.3 Sub-Slab Vapor Sampling ........................................................................................... 3
4.0 ANALYTICAL RESULTS .............................................................................................. 4
4.1 Air Sampling Results ................................................................................................... 4
4.2 Sub Slab Air Sampling Results ................................................................................... 4
4.3 Cumulative Risk Calculations ...................................................................................... 5
5.0 CONCLUSIONS ............................................................................................................. 6
FIGURES
Figure 1 Site Location
Figure 2 Site Map
Figure 3 Sample Location Diagram
TABLES
Table 1 Sample Information – Volatile Organic Compounds
Table 2 Indoor Air Results – Volatile Organic Compounds
Table 3 Sub-Slab Sample Results – Volatile Organic Compounds
APPENDICES
Appendix A Site Photographs
Appendix B Well Sampling Data Forms
Appendix C Laboratory Analtyical Report and Chain of Custody Record
Appendix D Sample Risk Calculations
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
1.0 INTRODUCTION
AMEC Environment & Infrastructure, Inc. (AMEC) is pleased to report the findings of additional
indoor air and sub-slab soil vapor sampling at the former Guilford Mills facility located at 5644
Hornaday Road, Greensboro, North Carolina (Site) (Figure 1). Previously, a release of
chlorinated volatile organic compounds (CVOCs) occurred upgradient of the Guilford Mills Plant,
reportedly at the adjacent Syngenta Corporation facility located north of the Guilford Mills site. In
addition, CVOCs may have been released at the facility. The release of CVOCs impacted
shallow groundwater, primarily along the western side of the former Guilford Mills facility (Figure
2).
Guilford Mills, Inc. (Guilford) sold the property to Tower Investments, LLC (Tower), who is
currently using it as warehouse space. Tower entered into a Brownfields Agreement, dated
February 28, 2008 and recorded February 29, 2008, for the site with the North Carolina
Department of Environment and Natural Resources (NCDENR), Division of Waste Management
(DWM), Brownfields Section (Brownfields). As requested by the Brownfields Section, sub-slab
and indoor air sampling was conducted in December 2006. Based on the sub-slab results
obtained, the Brownfields Agreement stipulated that mitigation measures were to be undertaken
at the site. Pursuant to an Environmental Escrow Agreement between Guilford and Tower,
Guilford has undertaken to carry out using proceeds from the sale, the tasks set forth in
paragraphs 13 and 14 of the Brownfields Agreement. These tasks include the identification and
sealing of potential vapor entrances into the building (paragraph 13) and balancing the
operation of the existing heating, ventilation and air-condition (HVAC) systems (paragraph 14),
both of which were specified to minimize potential indoor air issues associated with the
underlying CVOC groundwater plume.
A workplan entitled “Work Plan for Remedial Activities”, dated March 31, 2008, was submitted to
the Brownfields Section for review and approval. This work plan outlined the methods to be
used to identify cracks and pathways for the entrance of vapors from the subslab areas, and
mitigation methods to seal the vapor entrance ways. The work was to be performed once
approved by the Brownfields Section. Guilford is still awaiting a response from the Brownfields
Section regarding the proposed scope of work.
In addition, as directed under the Brownfields Agreement, groundwater sampling has been
conducted on an annual basis over the last five years to monitor the stability of the CVOC
plume. The primary constituents of concern (COCs) include tetrachloroethene (PCE) and
trichloroethene (TCE). Over the last five years, concentrations of these COCs have steadily
declined. When last sampled in January 2012, only PCE was present in well MW-10 at a
concentration above its associated North Carolina 2L Groundwater Quality Standard (2L
Standard). The sample exhibited a concentration of 1.4 micrograms per liter (ug/L) versus the
2L Standard of 0.7 ug/L. These results have been provided under separate cover in a report
prepared by AMEC entitled “2012 Annual Groundwater Sampling Report, Former Guilford
Hornaday Road Facility, 5644 Hornaday Road, Greensboro, North Carolina”. Since
concentrations of the COCs are below their associated NCDENR, DWM, Inactive Hazardous
Sites Branch (IHSB) Acceptable Groundwater Concentration for evaluating vapor intrusion
potential, and concentrations of COCs within the plume are decreasing, Guilford instructed
Results of Indoor Air and Sub-Slab Soil Vapor Sampling
Former Guilford Mills Hornaday Road Facility
Greensboro, North Carolina
March 14, 2012
Page 2
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
AMEC to perform additional sub-slab and indoor air sampling to determine if site conditions had
changed, and vapor mitigation was still warranted. Sampling results are summarized in the
sections below.
2.0 CURRENT SITE USE AND SITE INSPECTION
The structure is currently used as warehouse space for the storage of furniture. The entire
structure is fully utilized for storage purposes. The warehouse space is not heated or cooled by
a HVAC system. Only the office spaces located at the front (southern side) of the building are
served by HVAC. Electric heaters are sporadically utilized in the warehouse area, but they do
not significantly heat the building. In warm weather, roll-up doors are left open to ventilate the
building.
A site reconnaissance was conducted on January 17, 2012, to site sample locations and to
document potential sources of other indoor contaminant sources. A photo log is included in
Appendix A and an Indoor Air Building Survey and Sampling Form is included in Appendix B.
3.0 SAMPLING ACTIVITIES
3.1 Sample Analysis
Sampling activities were completed on January 25-26, 2012. All samples were collected into
batch certified summa canisters through batch certified flow controllers. Samples were shipped
to ESC Lab Sciences for analysis of volatile organic compounds by method TO-15. In
accordance with previous subslab and ambient air sampling conducted in 2006, a limited
analyte list was utilized and included only those compounds that have been previously detected
in on-site groundwater. The analyte list includes the following compounds.
• Carbon Tetrachloride
• Chloroethane
• Chloromethane
• Chloroform
• 1,1-Dichloroethane
• 1,2-Dichloroethane
• 1,1-Dichloroethene
• cis-1,2-Dichloroethene
• trans-1,2-Dichloroethene
• Methylene Chloride
• Tetrachloroethene
• 1,1,1-Trichloroethane
• Trichloroethene
• Vinyl Chloride
Results of Indoor Air and Sub-Slab Soil Vapor Sampling
Former Guilford Mills Hornaday Road Facility
Greensboro, North Carolina
March 14, 2012
Page 3
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
Sample locations are shown on Figure 3. In order to compare the current concentrations to
historical levels, the sample locations were placed as close as possible to the locations used in
the December 2006 sampling event.
3.2 Indoor Air Sampling
Four indoor air samples (IA-7 through IA-10), a duplicate sample (IA-R), and an outdoor
(ambient) air sample (AA) were collected from the site. Sample AA was collected outside and
upwind (northeast) of the building (see locations on Figure 3). Sample IA-R duplicated sample
IA-7, which was collected in the boiler room. All the indoor air samples were collected from the
breathing zone, approximately four to five feet above the ground. Ambient air sample AA was
also collected four feet above the ground.
The samples were collected using 6-liter summa canisters with flow controllers that regulated air
flow to fill the canisters at a constant rate over approximately eight hours. Each summa canister
identification number, flow controller identification number, the start and end times, and the
starting and ending summa canister vacuum pressures are provided in Table 1. Air temperature,
humidity, wind speed, and barometric pressure were recorded at the beginning and end of
sampling, as well as hourly during sampling.
3.3 Sub-Slab Vapor Sampling
Four sub-slab vapor samples were collected within the building. Permanent sub-slab vapor
monitoring points were installed at each location shown on Figure 3. Sampling implants were
installed within six inches of the bottom of the concrete building pad. Fine sand-sized glass
beads were used as backfill material to fill the void area beneath the slab and to cover the
screened portion of the implant. The remaining space within the hole was filled and the tubing
sealed in place with hydrated granular bentonite and cement grout. The implants were
connected to a threaded fitting near the surface with 0.170 x 0.25-inch Teflon tubing. A tamper-
resistant flush-mount cover attaches to the threaded fitting when the sampling points are not in
use.
To remove ambient air within tubing and air introduced to the sub slab airspace during drilling
and tubing installation, approximately one liter of air was purged prior to sampling using a
peristaltic pump. In order to minimize ambient air intrusion, air flow was maintained at a rate
below 200 milliliters per minute. After purging, the tubing was immediately connected to a 1-liter
summa canister for sample collection. The samples were collected using a flow controller that
regulated air flow to fill the canisters at a constant rate over approximately ½-hour. The summa
canister identification numbers, flow controller identification numbers, start and end times, and
the starting and ending summa canister vacuum pressures are provided in Table 1.
Helium was employed as a tracer gas to provide a means of assessing whether air from above
the slab was able to pass through the bentonite seal during sampling. To achieve this, a plastic
bag filled with helium was sealed in place over the tubing and borehole throughout the sampling
period.
Results of Indoor Air and Sub-Slab Soil Vapor Sampling
Former Guilford Mills Hornaday Road Facility
Greensboro, North Carolina
March 14, 2012
Page 4
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
4.0 ANALYTICAL RESULTS
Analytical results have been compared the IHSB industrial/commercial vapor intrusion
screening levels and results from the December 2006 sampling event. The December 2006
results were initially reported in parts per billion by volume (ppbv). These results have been
converted to micrograms per cubic meter (µg/m3) to be consistent with current convention, and
to easily compare with current results.
The laboratory report and chain-of-custody documentation are included in Appendix C. Indoor
air sampling results are presented on Table 2 and sub-slab results on Table 3. Sample locations
are shown on Figure 3.
4.1 Air Sampling Results
1,2-Dichloroethane (1,2-DCA) was present in all four indoor samples at similar concentrations.
The concentrations exceed the IHSB industrial/commercial screening level for 1,2-DCA of 0.47
µg/m3. The samples were reported with concentrations of 1.1 µg/m3 in sample IA-7, 7.3 µg/m3 in
IA-8, 11 µg/m3 in IA-9, and 4.0 µg/m3 in IA-10. The compound was not detected in the ambient
air sample (AA) collected upwind of the facility.
1,2-DCA was not detected in any of the indoor air samples collected in 2006. In addition, in the
associated sub-slab samples at location SG-8 and SG-9, concentrations were measured at
similar or lower values than what was observed in the indoor air. 1,2-DCA was not detected in
samples SG-7 and SG-10 at concentrations at or above their laboratory practical quantitation
limits (PQL). If the 1,2-DCA was due to off-gasing from the groundwater CVOC plume,
concentrations two orders of magnitude or higher would be expected in the associated sub-slab
samples. 1,2-DCA is a known constituent in textile fabric and the warehouse is used for the
storage of new furniture. Based on the historic sampling data, sub-slab sampling data, and
known constituents in the groundwater plume, the 1,2-DCA can be attributed to site activities
and not historic operations.
No other constituents were detected at concentrations exceeding their respective IHSB
industrial/commercial vapor intrusion screening levels, including COCs which have historically
been present in the groundwater.
4.2 Sub Slab Air Sampling Results
Samples SG-7 and SG-9 did not contain any COCs at concentrations at or exceeding their
respective IHSB industrial/commercial soil gas screening levels. Laboratory results from sub-
slab samples SG-8 and SG-10 contained COCs exceeding, but within an order of magnitude of
their respective soil gas screening levels. Sample SG-8 contained 1,1-dichloroethane (1,1-DCA)
at a concentration of 1,400 µg/m3, which exceeds the screening level of 770 µg/m3. Sample SG-
10 was reported with a PCE concentration of 1,800 µg/m3 and a TCE concentration of 64 µg/m3,
which exceed their respective screening levels of 210 µg/m3 and 17.6 µg/m3.
Results of Indoor Air and Sub-Slab Soil Vapor Sampling
Former Guilford Mills Hornaday Road Facility
Greensboro, North Carolina
March 14, 2012
Page 5
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
There was a significant decline sub-slab concentrations observed in three of the four samples
(SG-7, SG-8, and SG-9) collected when compared to the December 2006 values. Both
sampling events were conducted at a similar time of year, so the changes are likely not due to
seasonal variations. The changes are likely the result of the documented decreases in CVOC
concentrations observed in the groundwater plume.
4.3 Cumulative Risk Calculations
As stated above, in two of the sub-slab samples concentrations of 1,1-DCA, PCE, and TCE
were present at concentrations exceeding, but within an order of magnitude, of their respective
soil gas industrial commercial screening levels. These screening levels are based on a
carcinogenic target risk of 1 x 10-5, and a hazard index (HI) of 0.2, with a safety factor to account
for the synergistic effect of four additional VOCs. Therefore, AMEC calculated the cumulative
risk associated with each of these specific samples (SG-8 and SG-10). The concentrations were
compared with 10-6 Carcinogenic Target Risk and Noncancer HI (=1) values provided in the
EPA Regional Screening Level Industrial Air Supporting Table updated as of November 2011.
These calculations are included in Appendix D.
When evaluating soil gas and subslab sampling results, a 100 fold attenuation factor is applied
to account for the concrete slab material which impedes the upward movement of the vapors.
Based on the comparison of sub-slab to indoor air values, the concrete slab is of sufficient
construction that a higher attenuation factor is appropriate. However, for this evaluation, the
default attenuation factor (100 fold) was used. Therefore, the cumulative risk was calculated
using the analytical values observed and then the 100 fold attenuation factor was applied so the
results could be compared to indoor air vapor standards. These calculation tables are provided
in Appendix D and results are summarized below.
Sample No.
Sub-Slab
Cumulative Risk
(no Attenuation
Factor)
Cumulative Risk
(With 100x
Attenuation
Factor)
Sub-Slab
Hazard Index
(No Attenuation
Factor)
Hazard Index
(With 100x
Attenuation
Factor)
SG-8 2.6 x 10-4 2.6 x 10-6 0.8 0.01
SG-10 9.29 x 10-4 9.29 x 10-6 9.13 0.09
Maximum Values -
all Samples 1.13 x 10-3 1.13 x 10-5 9.76 0.1
When the cumulative carcinogenic risk and cumulative HI was calculated for each of these
samples, values are less than the 1 x 10-5 risk threshold and HI of 1. Although the exceedances
were observed on opposite sides of the large facility, AMEC also calculated the cumulative risk
using the maximum concentrations observed from all four sample locations to further
demonstrate that sub-slab vapor was no longer an issue at this site. Using this conservative
approach, the cumulative risk was calculated at 1.13 x 10-5 and a HI of 0.1. Therefore,
cumulative risk values indicate that mitigation at this site is not warranted.
Results of Indoor Air and Sub-Slab Soil Vapor Sampling
Former Guilford Mills Hornaday Road Facility
Greensboro, North Carolina
March 14, 2012
Page 6
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
5.0 CONCLUSIONS
The sub-slab and indoor air monitoring results indicate that the COCs present in the
groundwater have not adversely impacted indoor air quality at levels at or exceeding their
applicable screening levels for industrial and commercial use. Indoor air samples exceeded the
screening level for 1,2-DCA. However, the groundwater, sub-slab, and historic indoor data
indicate that these exceedances are likely due to off-gassing from furniture that is currently
warehoused in the building, and not historic activities.
There was a significant decline in sub-slab concentrations in three of the four samples, when
comparing the 2006 data to the data collected in January 2012. Both sampling events were
conducted at a similar time of year, so the changes are likely not due to seasonal variations, but
decreases in CVOC concentrations in the groundwater plume. Samples SG-7 and SG-9 did not
contain any COCs at concentrations exceeding the industrial commercial soil gas screening
levels. Therefore, mitigation and/or additional sampling will not be conducted in these portions
of the facility.
Two sub-slab samples contained COCs at concentrations which exceed their IHSB industrial
commercial screening levels by less than an order of magnitude. These screening levels are
based on a HI of 0.2, with a safety factor to account for the synergistic effect of four additional
VOCs. When the cumulative carcinogenic risk and cumulative HI was calculated for each of
these samples, values are less than the 1 x 10-5 risk threshold and HI of 1.
The historic and recent sampling results indicate that the concentrations of VOCs present in the
sub-slab area do not pose a threat to indoor air, and mitigation is not required. In addition, two
sampling events have been conducted during the winter time months, or worst case conditions.
The concentrations most recently obtained indicate improving conditions. The cumulative
carcinogenic risk value for both samples is less than 1 x 10-5 and a cumulative HI of less than 1.
In accordance with IHSB Guidance entitled “Supplemental Guidelines for the Evaluation of
Structural Vapor Intrusion Potential for Site Assessments and Remedial Actions Under the
Inactive Hazardous Sites Branch, 21 June 2011”, additional sampling and/or mitigation is not
warranted.
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
FIGURES
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
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TrichloroethyleneVinyl Chloride Helium (mg/L)**
82
N
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No
t
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s
µg
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m
3 =
m
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(
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)
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=
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d
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=
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Hi
g
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u
s
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S
c
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i
n
g
L
e
v
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l
s
**
S
a
m
p
l
e
r
e
s
u
l
t
s
w
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t
h
a
c
o
n
c
e
n
t
r
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f
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p
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2
0
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0
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0
m
g
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l
a
r
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c
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n
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e
SG
-
8
SG
-
9
SG
-
1
0
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b
-
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l
a
b
S
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m
p
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m
p
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/
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SG
-
7
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
APPENDIX A
SITE PHOTOGRAPHS
2200 Gateway Centre Boulevard, Suite 205 Morrisville, NC 27560
PROCESSED David Treadway
DATE January 2012
PAGE
PHOTOGRAPH LOG
Guilford Mills
Hornaday Road; Greensboro, NC
Photo 1
Indoor air sample IA-9.
Photo 2
Sub-slab sample SG-9 was
collected near the base of
the shelf on the left side of
the photograph. The boxes
contain unassembled
furniture.
1
2200 Gateway Centre Boulevard, Suite 205 Morrisville, NC 27560
PROCESSED David Treadway
DATE January 2012
PAGE
PHOTOGRAPH LOG
Guilford Mills
Hornaday Road; Greensboro, NC
Photo 7
Samples IA-8 and SG-8
were collected from center-
right in the photograph.
Photo 8
Samples SG-7 and IA-7
were collected in the boiler
room.
2
SB-4
2200 Gateway Centre Boulevard, Suite 205 Morrisville, NC 27560
PROCESSED David Treadway
DATE January 2012
PAGE
PHOTOGRAPH LOG
Guilford Mills
Hornaday Road; Greensboro, NC
Photo 10
Boxed furniture in the
northwest corner of the
building.
Photo 9
Samples SG-10 and IA-10
were collected in the
northeast portion of the
building. A boat, numerous
mattresses, and boxed
furniture were located in
the vicinity of these
samples.
3
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
APPENDIX B
LABORATORY ANALYTICAL REPORT
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
David TreadwayAMEC Earth and Environmental
2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
Report Summary
Monday February 06, 2012
Report Number: L558094
Samples Received: 01/31/12
Client Project:
Description: Guilford Mills Hornaday Road
The analytical results in this report are based upon information suppliedby you, the client, and are for your exclusive use. If you have anyquestions regarding this data package, please do not hesitate to call.
Entire Report Reviewed By: ____________________________________
Jimmy Hunt , ESC Representative
Laboratory Certification Numbers
A2LA - 1461-01, AIHA - 100789, AL - 40660, CA - 01157CA, CT - PH-0197,FL - E87487, GA - 923, IN - C-TN-01, KY - 90010, KYUST - 0016,NC - ENV375/DW21704/BIO041, ND - R-140. NJ - TN002, NJ NELAP - TN002,SC - 84004, TN - 2006, VA - 460132, WV - 233, AZ - 0612,MN - 047-999-395, NY - 11742, WI - 998093910, NV - TN000032011-1,TX - T104704245-11-3, OK - 9915, PA - 68-02979
Accreditation is only applicable to the test methods specified on each scope of accreditation held
by ESC Lab Sciences.
Note: The use of the preparatory EPA Method 3511 is not approved or endorsed by the CA ELAP.
This report may not be reproduced, except in full, without written approval from ESC Lab Sciences.
Where applicable, sampling conducted by ESC is performed per guidance provided
in laboratory standard operating procedures: 060302, 060303, and 060304.
Page 1 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-01
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : IA-8
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 12:30
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.200 1.30 < 0.20 < 1.3 TO-15 02/02/12 1
Chloroethane 75-00-3 64.5 0.200 0.530 < 0.20 < 0.53 TO-15 02/02/12 1
Chloroform 67-66-3 119 0.200 0.970 < 0.20 < 0.97 TO-15 02/02/12 1
Chloromethane 74-87-3 50.5 0.200 0.410 0.58 1.2 TO-15 02/02/12 1
1,2-Dichloroethane 107-06-2 99 0.200 0.810 1.8 7.3 TO-15 02/02/12 1 1,1-Dichloroethane 75-34-3 98 0.200 0.800 < 0.20 < 0.80 TO-15 02/02/12 1
1,1-Dichloroethene 75-35-4 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
cis-1,2-Dichloroethene 156-59-2 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
trans-1,2-Dichloroethene 156-60-5 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
Methylene Chloride 75-09-2 84.9 0.200 0.690 2.3 8.0 TO-15 02/02/12 1
Tetrachloroethylene 127-18-4 166 0.200 1.40 < 0.20 < 1.4 TO-15 02/02/12 1
1,1,1-Trichloroethane 71-55-6 133 0.200 1.10 0.22 1.2 TO-15 02/02/12 1
Trichloroethylene 79-01-6 131 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Vinyl chloride 75-01-4 62.5 0.200 0.510 < 0.20 < 0.51 TO-15 02/02/12 1
1,4-Bromofluorobenzene 460-00-4 89.76 % Rec. TO-15 02/02/12 1
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 2 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-02
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : IA-9
Project # :
Collected By : DT/JM
Collection Date : 01/25/12 16:42
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.200 1.30 < 0.20 < 1.3 TO-15 02/02/12 1
Chloroethane 75-00-3 64.5 0.200 0.530 < 0.20 < 0.53 TO-15 02/02/12 1
Chloroform 67-66-3 119 0.200 0.970 < 0.20 < 0.97 TO-15 02/02/12 1
Chloromethane 74-87-3 50.5 0.200 0.410 0.56 1.2 TO-15 02/02/12 1
1,2-Dichloroethane 107-06-2 99 0.200 0.810 2.8 11. TO-15 02/02/12 1 1,1-Dichloroethane 75-34-3 98 0.200 0.800 < 0.20 < 0.80 TO-15 02/02/12 1
1,1-Dichloroethene 75-35-4 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
cis-1,2-Dichloroethene 156-59-2 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
trans-1,2-Dichloroethene 156-60-5 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
Methylene Chloride 75-09-2 84.9 0.200 0.690 0.70 2.4 TO-15 02/02/12 1
Tetrachloroethylene 127-18-4 166 0.200 1.40 < 0.20 < 1.4 TO-15 02/02/12 1
1,1,1-Trichloroethane 71-55-6 133 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Trichloroethylene 79-01-6 131 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Vinyl chloride 75-01-4 62.5 0.200 0.510 < 0.20 < 0.51 TO-15 02/02/12 1
1,4-Bromofluorobenzene 460-00-4 93.5 % Rec. TO-15 02/02/12 1
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 3 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-03
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : IA-7
Project # :
Collected By : DT/JM
Collection Date : 01/25/12 16:38
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.200 1.30 < 0.20 < 1.3 TO-15 02/02/12 1
Chloroethane 75-00-3 64.5 0.200 0.530 < 0.20 < 0.53 TO-15 02/02/12 1
Chloroform 67-66-3 119 0.200 0.970 < 0.20 < 0.97 TO-15 02/02/12 1
Chloromethane 74-87-3 50.5 0.200 0.410 0.53 1.1 TO-15 02/02/12 1
1,2-Dichloroethane 107-06-2 99 0.200 0.810 0.28 1.1 TO-15 02/02/12 1 1,1-Dichloroethane 75-34-3 98 0.200 0.800 < 0.20 < 0.80 TO-15 02/02/12 1
1,1-Dichloroethene 75-35-4 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
cis-1,2-Dichloroethene 156-59-2 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
trans-1,2-Dichloroethene 156-60-5 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
Methylene Chloride 75-09-2 84.9 0.200 0.690 2.3 8.0 TO-15 02/02/12 1
Tetrachloroethylene 127-18-4 166 0.200 1.40 < 0.20 < 1.4 TO-15 02/02/12 1
1,1,1-Trichloroethane 71-55-6 133 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Trichloroethylene 79-01-6 131 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Vinyl chloride 75-01-4 62.5 0.200 0.510 < 0.20 < 0.51 TO-15 02/02/12 1
1,4-Bromofluorobenzene 460-00-4 90.43 % Rec. TO-15 02/02/12 1
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 4 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-04
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : IA-10
Project # :
Collected By : DT/JM
Collection Date : 01/25/12 16:03
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.200 1.30 < 0.20 < 1.3 TO-15 02/02/12 1
Chloroethane 75-00-3 64.5 0.200 0.530 < 0.20 < 0.53 TO-15 02/02/12 1
Chloroform 67-66-3 119 0.200 0.970 < 0.20 < 0.97 TO-15 02/02/12 1
Chloromethane 74-87-3 50.5 0.200 0.410 0.47 0.97 TO-15 02/02/12 1
1,2-Dichloroethane 107-06-2 99 0.200 0.810 0.98 4.0 TO-15 02/02/12 1 1,1-Dichloroethane 75-34-3 98 0.200 0.800 < 0.20 < 0.80 TO-15 02/02/12 1
1,1-Dichloroethene 75-35-4 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
cis-1,2-Dichloroethene 156-59-2 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
trans-1,2-Dichloroethene 156-60-5 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
Methylene Chloride 75-09-2 84.9 0.200 0.690 0.43 1.5 TO-15 02/02/12 1
Tetrachloroethylene 127-18-4 166 0.200 1.40 < 0.20 < 1.4 TO-15 02/02/12 1
1,1,1-Trichloroethane 71-55-6 133 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Trichloroethylene 79-01-6 131 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Vinyl chloride 75-01-4 62.5 0.200 0.510 < 0.20 < 0.51 TO-15 02/02/12 1
1,4-Bromofluorobenzene 460-00-4 92.57 % Rec. TO-15 02/02/12 1
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 5 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-05
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : IA-R
Project # :
Collected By : DT/JM
Collection Date : 01/25/12 16:07
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.200 1.30 < 0.20 < 1.3 TO-15 02/02/12 1
Chloroethane 75-00-3 64.5 0.200 0.530 < 0.20 < 0.53 TO-15 02/02/12 1
Chloroform 67-66-3 119 0.200 0.970 < 0.20 < 0.97 TO-15 02/02/12 1
Chloromethane 74-87-3 50.5 0.200 0.410 0.25 0.52 TO-15 02/02/12 1
1,2-Dichloroethane 107-06-2 99 0.200 0.810 < 0.20 < 0.81 TO-15 02/02/12 1 1,1-Dichloroethane 75-34-3 98 0.200 0.800 < 0.20 < 0.80 TO-15 02/02/12 1
1,1-Dichloroethene 75-35-4 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
cis-1,2-Dichloroethene 156-59-2 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
trans-1,2-Dichloroethene 156-60-5 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
Methylene Chloride 75-09-2 84.9 0.200 0.690 < 0.20 < 0.69 TO-15 02/02/12 1
Tetrachloroethylene 127-18-4 166 0.200 1.40 < 0.20 < 1.4 TO-15 02/02/12 1
1,1,1-Trichloroethane 71-55-6 133 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Trichloroethylene 79-01-6 131 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Vinyl chloride 75-01-4 62.5 0.200 0.510 < 0.20 < 0.51 TO-15 02/02/12 1
1,4-Bromofluorobenzene 460-00-4 82.51 % Rec. TO-15 02/02/12 1
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 6 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-06
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : AA
Project # :
Collected By : DT/JM
Collection Date : 01/25/12 16:17
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.200 1.30 < 0.20 < 1.3 TO-15 02/02/12 1
Chloroethane 75-00-3 64.5 0.200 0.530 < 0.20 < 0.53 TO-15 02/02/12 1
Chloroform 67-66-3 119 0.200 0.970 < 0.20 < 0.97 TO-15 02/02/12 1
Chloromethane 74-87-3 50.5 0.200 0.410 0.25 0.52 TO-15 02/02/12 1
1,2-Dichloroethane 107-06-2 99 0.200 0.810 < 0.20 < 0.81 TO-15 02/02/12 1 1,1-Dichloroethane 75-34-3 98 0.200 0.800 < 0.20 < 0.80 TO-15 02/02/12 1
1,1-Dichloroethene 75-35-4 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
cis-1,2-Dichloroethene 156-59-2 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
trans-1,2-Dichloroethene 156-60-5 96.9 0.200 0.790 < 0.20 < 0.79 TO-15 02/02/12 1
Methylene Chloride 75-09-2 84.9 0.200 0.690 < 0.20 < 0.69 TO-15 02/02/12 1
Tetrachloroethylene 127-18-4 166 0.200 1.40 < 0.20 < 1.4 TO-15 02/02/12 1
1,1,1-Trichloroethane 71-55-6 133 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Trichloroethylene 79-01-6 131 0.200 1.10 < 0.20 < 1.1 TO-15 02/02/12 1
Vinyl chloride 75-01-4 62.5 0.200 0.510 < 0.20 < 0.51 TO-15 02/02/12 1
1,4-Bromofluorobenzene 460-00-4 81.66 % Rec. TO-15 02/02/12 1
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 7 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-07
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-8 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 16:12
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.400 2.50 < 0.40 < 2.5 TO-15 02/02/12 2
Chloroethane 75-00-3 64.5 0.400 1.10 22. 58. TO-15 02/02/12 2
Chloroform 67-66-3 119 0.400 1.90 1.1 5.4 TO-15 02/02/12 2
Chloromethane 74-87-3 50.5 0.400 0.830 < 0.40 < 0.83 TO-15 02/02/12 2
1,2-Dichloroethane 107-06-2 99 0.400 1.60 4.1 17. TO-15 02/02/12 2 1,1-Dichloroethane 75-34-3 98 4.00 16.0 360 1400 TO-15 02/03/12 20
1,1-Dichloroethene 75-35-4 96.9 0.400 1.60 12. 48. TO-15 02/02/12 2
cis-1,2-Dichloroethene 156-59-2 96.9 0.400 1.60 3.6 14. TO-15 02/02/12 2
trans-1,2-Dichloroethene 156-60-5 96.9 0.400 1.60 0.74 2.9 TO-15 02/02/12 2
Methylene Chloride 75-09-2 84.9 0.400 1.40 0.57 2.0 TO-15 02/02/12 2
Tetrachloroethylene 127-18-4 166 0.400 2.70 11. 75. TO-15 02/02/12 2
1,1,1-Trichloroethane 71-55-6 133 4.00 22.0 510 2800 TO-15 02/03/12 20
Trichloroethylene 79-01-6 131 0.400 2.10 < 0.40 < 2.1 TO-15 02/02/12 2
Vinyl chloride 75-01-4 62.5 0.400 1.00 < 0.40 < 1.0 TO-15 02/02/12 2
1,4-Bromofluorobenzene 460-00-4 93.62 % Rec. TO-15 02/02/12 2
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 8 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-08
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-8 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 16:12
Parameter Result Det. Limit Units Method Date Dil.
Helium 190 25. mg/l ASTM 1946 02/03/12 1
BDL - Below Detection Limit
Det. Limit - Practical Quantitation Limit(PQL)
Note:
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 9 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-09
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-9 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 15:59
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.400 2.50 < 0.40 < 2.5 TO-15 02/02/12 2
Chloroethane 75-00-3 64.5 0.400 1.10 < 0.40 < 1.1 TO-15 02/02/12 2
Chloroform 67-66-3 119 0.400 1.90 1.7 8.3 TO-15 02/02/12 2
Chloromethane 74-87-3 50.5 0.400 0.830 0.79 1.6 TO-15 02/02/12 2
1,2-Dichloroethane 107-06-2 99 0.400 1.60 0.91 3.7 TO-15 02/02/12 2 1,1-Dichloroethane 75-34-3 98 0.400 1.60 6.3 25. TO-15 02/02/12 2
1,1-Dichloroethene 75-35-4 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
cis-1,2-Dichloroethene 156-59-2 96.9 0.400 1.60 0.61 2.4 TO-15 02/02/12 2
trans-1,2-Dichloroethene 156-60-5 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
Methylene Chloride 75-09-2 84.9 0.400 1.40 0.42 1.5 TO-15 02/02/12 2
Tetrachloroethylene 127-18-4 166 0.400 2.70 11. 75. TO-15 02/02/12 2
1,1,1-Trichloroethane 71-55-6 133 0.400 2.20 12. 65. TO-15 02/02/12 2
Trichloroethylene 79-01-6 131 0.400 2.10 0.66 3.5 TO-15 02/02/12 2
Vinyl chloride 75-01-4 62.5 0.400 1.00 < 0.40 < 1.0 TO-15 02/02/12 2
1,4-Bromofluorobenzene 460-00-4 87.77 % Rec. TO-15 02/02/12 2
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 10 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-10
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-9 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 15:59
Parameter Result Det. Limit Units Method Date Dil.
Helium 18000 250 mg/l ASTM 1946 02/03/12 10
BDL - Below Detection Limit
Det. Limit - Practical Quantitation Limit(PQL)
Note:
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 11 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-11
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-10 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 15:40
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.400 2.50 < 0.40 < 2.5 TO-15 02/02/12 2
Chloroethane 75-00-3 64.5 0.400 1.10 < 0.40 < 1.1 TO-15 02/02/12 2
Chloroform 67-66-3 119 0.400 1.90 5.3 26. TO-15 02/02/12 2
Chloromethane 74-87-3 50.5 0.400 0.830 < 0.40 < 0.83 TO-15 02/02/12 2
1,2-Dichloroethane 107-06-2 99 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2 1,1-Dichloroethane 75-34-3 98 0.400 1.60 3.0 12. TO-15 02/02/12 2
1,1-Dichloroethene 75-35-4 96.9 0.400 1.60 65. 260 TO-15 02/02/12 2
cis-1,2-Dichloroethene 156-59-2 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
trans-1,2-Dichloroethene 156-60-5 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
Methylene Chloride 75-09-2 84.9 0.400 1.40 < 0.40 < 1.4 TO-15 02/02/12 2
Tetrachloroethylene 127-18-4 166 0.400 2.70 260 1800 TO-15 02/02/12 2
1,1,1-Trichloroethane 71-55-6 133 0.400 2.20 4.8 26. TO-15 02/02/12 2
Trichloroethylene 79-01-6 131 0.400 2.10 12. 64. TO-15 02/02/12 2
Vinyl chloride 75-01-4 62.5 0.400 1.00 < 0.40 < 1.0 TO-15 02/02/12 2
1,4-Bromofluorobenzene 460-00-4 94.59 % Rec. TO-15 02/02/12 2
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 12 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-12
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-10 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 15:40
Parameter Result Det. Limit Units Method Date Dil.
Helium BDL 25. mg/l ASTM 1946 02/03/12 1
BDL - Below Detection Limit
Det. Limit - Practical Quantitation Limit(PQL)
Note:
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 13 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-13
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-7 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 16:23
Parameter Cas# Mol Wght RDL1 RDL2 ppbv ug/m3 Method Date Dil.
Volatile Organics
Carbon tetrachloride 56-23-5 154 0.400 2.50 < 0.40 < 2.5 TO-15 02/02/12 2
Chloroethane 75-00-3 64.5 0.400 1.10 2.2 5.8 TO-15 02/02/12 2
Chloroform 67-66-3 119 0.400 1.90 < 0.40 < 1.9 TO-15 02/02/12 2
Chloromethane 74-87-3 50.5 0.400 0.830 0.80 1.7 TO-15 02/02/12 2
1,2-Dichloroethane 107-06-2 99 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2 1,1-Dichloroethane 75-34-3 98 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
1,1-Dichloroethene 75-35-4 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
cis-1,2-Dichloroethene 156-59-2 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
trans-1,2-Dichloroethene 156-60-5 96.9 0.400 1.60 < 0.40 < 1.6 TO-15 02/02/12 2
Methylene Chloride 75-09-2 84.9 0.400 1.40 < 0.40 < 1.4 TO-15 02/02/12 2
Tetrachloroethylene 127-18-4 166 0.400 2.70 1.3 8.8 TO-15 02/02/12 2
1,1,1-Trichloroethane 71-55-6 133 0.400 2.20 < 0.40 < 2.2 TO-15 02/02/12 2
Trichloroethylene 79-01-6 131 0.400 2.10 < 0.40 < 2.1 TO-15 02/02/12 2
Vinyl chloride 75-01-4 62.5 0.400 1.00 < 0.40 < 1.0 TO-15 02/02/12 2
1,4-Bromofluorobenzene 460-00-4 92.15 % Rec. TO-15 02/02/12 2
RDL1 = ppbv , RDL2 = ug/m3
Note:
Units are based on (STP) - Standard Temperature and Pressure
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 14 of 17
12065 Lebanon Rd.
Mt. Juliet, TN 37122
(615) 758-5858
1-800-767-5859
Fax (615) 758-5859
Tax I.D. 62-0814289
Est. 1970
REPORT OF ANALYSIS
David Treadway February 06, 2012
AMEC Earth and Environmental 2200 Gateway Centre Blvd, Ste 205
Morrisville, NC 27560
ESC Sample # : L558094-14
Date Received : January 31, 2012
Description : Guilford Mills Hornaday Road
Site ID : GREENSBORO, NC
Sample ID : SG-7 .5 FT
Project # :
Collected By : DT/JM
Collection Date : 01/26/12 16:23
Parameter Result Det. Limit Units Method Date Dil.
Helium 190 25. mg/l ASTM 1946 02/03/12 1
BDL - Below Detection Limit
Det. Limit - Practical Quantitation Limit(PQL)
Note:
The reported analytical results relate only to the sample submitted.
This report shall not be reproduced, except in full, without the written approval from ESC.
.
Reported: 02/06/12 09:28 Printed: 02/06/12 10:32
Page 15 of 17
Attachment A
List of Analytes with QC Qualifiers
Sample Work Sample Run
Number Group Type Analyte ID Qualifier
________________ ___________ _______ ________________________________________ __________ __________
L558094-07 WG576980 SAMP 1,1,1-Trichloroethane R2025612 Y
L558094-11 WG576796 SAMP 1,1-Dichloroethene R2023673 E
WG576796 SAMP Tetrachloroethylene R2023673 E
Page 16 of 17
Attachment B
Explanation of QC Qualifier Codes
Qualifier Meaning
__________________ _______________________________________________________________________________
E GTL (EPA) - Greater than upper calibration limit: Actual value is known to
be greater than the upper calibration range.
Y This sample most closely matches the laboratory standard for Kerosene
Qualifier Report Information
ESC utilizes sample and result qualifiers as set forth by the EPA Contract Laboratory Program and
as required by most certifying bodies including NELAC. In addition to the EPA qualifiers adopted
by ESC, we have implemented ESC qualifiers to provide more information pertaining to our analytical
results. Each qualifier is designated in the qualifier explanation as either EPA or ESC.
Data qualifiers are intended to provide the ESC client with more detailed information concerning
the potential bias of reported data. Because of the wide range of constituents and variety of
matrices incorporated by most EPA methods,it is common for some compounds to fall outside of
established ranges. These exceptions are evaluated and all reported data is valid and useable
"unless qualified as 'R' (Rejected)."
Definitions
Accuracy - The relationship of the observed value of a known sample to the
true value of a known sample. Represented by percent recovery and
relevant to samples such as: control samples, matrix spike recoveries,
surrogate recoveries, etc.
Precision - The agreement between a set of samples or between duplicate samples.Relates to how close together the results are and is represented by
Relative Percent Differrence.
Surrogate - Organic compounds that are similar in chemical composition, extraction,
and chromotography to analytes of interest. The surrogates are used to
determine the probable response of the group of analytes that are chem-
ically related to the surrogate compound. Surrogates are added to the
sample and carried through all stages of preparation and analyses.
TIC - Tentatively Identified Compound: Compounds detected in samples that are
not target compounds, internal standards, system monitoring compounds,
or surrogates.
Page 17 of 17
AMEC Environment & Infrastructure, Inc. Tel – (919) 447-2750
2200 Gateway Centre Boulevard Suite 205 Fax (919) 447-2751
Morrisville NC, 27560 www.amec.com
APPENDIX C
INDOOR AIR RISK RESULTS
Si
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