Boxmeer_Vapor Intrusion Report 3-20-2014

10220 Old Columbia Road, Suite A
Columbia, Maryland 21046
PH 410.381.4333
FAX [phone]
www.geosyntec.com

MN1047/MD14103
PRIVILEGED AND CONFIDENTIAL 20 March 2014
Mr. Chris Jeffcoat
Controller
SPGPrints America, Inc.
3201 Rotary Drive
Charlotte, North Carolina 28269
[e-mail]

Subject: Report on Limited Vapor Intrusion Investigation
Building 1, SPGPrints America Inc.
3201 Rotary Drive, Charlotte, North Carolina

Dear Mr. Jeffcoat:

On behalf of SPGPrints America, Inc. (SPGPrints), Geosyntec Consultants, Inc. (Geosyntec) is
pleased to provide this letter report presenting the results of the limited vapor intrusion
investigation at Building 1 at the SPGPrints facility in Charlotte, North Carolina (the Site).
Geosyntec understands that SPGPrints, the Site owner, wishes to understand the current
environmental condition of soil and sub-slab vapors beneath and around Building 1 at the Site.
This report summarizes the results of the limited vapor intrusion investigation that Geosyntec
conducted during the week of 3 March 2014. Work was completed by Geosyntec and its
subcontractors in accordance with SPGPrints’ authorization of Geosyntec’s 28 February 2014
proposal.
BACKGROUND
Geosyntec performed a limited Phase II site investigation in February 2014 in and around
Building 1 at the Site. This investigation consisted of soil and groundwater sampling beneath
Building 1 and sampling of five existing groundwater monitoring wells around Building 1. The
analytical results from the limited Phase II site investigation indicated the presence of
tetrachloroethene (PCE) in groundwater at concentrations above relevant North Carolina
screening criteria beneath Building 1, with the highest PCE concentration in groundwater of 144
micrograms per liter (ug/L) occurring beneath Bay 4 of Building 1.
Due to the potential indoor air hazard posed by PCE beneath Building 1, Geosyntec and its
partner firm, Tauw bv (Tauw), recommended to SPGPrints that a limited vapor intrusion
investigation be performed beneath Building 1. Specifically, our proposed vapor intrusion
investigation was to focus around the vicinity of boring location SB-2 where the prior detection
of PCE (144 ug/L) was detected. This concentration of PCE in groundwater exceeds the North
Carolina Department of Environment and Natural Resources (NCDENR) Division of Waste
Management’s Non-Residential Vapor Intrusion Screening Level (VISL) for groundwater
(48.4 ug/L).
Mr. Chris Jeffcoat
20 March 2014
Page 2

MN1047/MD14103 PRIVILEGED AND CONFIDENTIAL

INVESTIGATION APPROACH
Geosyntec mobilized to the Site on 3 March 2014 to commence the vapor intrusion investigation
activities at Building 1. All soil vapor sampling associated with this limited vapor intrusion
investigation was performed in general accordance with the NCDENR Division of Waste
Management’s Supplemental Guidelines for the Evaluation of Structural VI Potential for Site
Assessments and Remedial Actions (2013), as outlined in Geosyntec’s 28 February 2014 email
proposal. These North Carolina guidelines recommend a phased approach to vapor intrusion
investigation, with performance of sub-slab soil vapor sampling to be performed after soil gas
sampling. As noted in the email proposal, due to the time constraints associated with this effort,
Geosyntec proposed to perform both sub-slab and soil gas sampling during this event.
Geosyntec’s operating procedures for soil gas and sub-slab sampling, which are based on state-
of-the-practice methods, were followed during this investigation and are provided in Appendix
A.
Sub-Slab Sampling
Two locations (SS-1 and SS-2) in the vicinity of soil boring SB-2 were selected for sampling of
sub-slab vapor. Concrete was removed from these locations using a hammer drill, and a sub-slab
soil vapor probe (SS-1 and SS-2) was installed at each location at a depth immediately below the
concrete slab foundation of Building 1. One liter of soil vapor was collected from each sub-slab
probe location using a Summa canister equipped with a flow controller set to collect vapor at 100
milliliters per minute (mL/min).
Soil Gas Sampling
On 4 March 2014, three borings (SG-1 through SG-3) were advanced in and around Building 1
at the Site for the purposes of installing soil gas wells. Borings SG-1 and SG-2 were co-located
with sub-slab borings SS-1 and SS-2, respectively. Boring SG-3 was advanced immediately
outside the north wall of Bay 4, away from areas of known chlorinated solvent impacts, in order
to understand background reference concentrations of soil gas. Each boring was advanced to
approximately 10 feet, at which point a temporary soil gas probe was installed.
Ambient Air Sampling
One ambient air sample was collected over 8 total hours on Monday and Tuesday from an
exterior area north of Building 1. This ambient air sample was designed to provide a background
concentration of organic vapors for comparison to sub-slab and soil gas analyses. One six-liter
sample was collected using a Summa canister equipped with a flow controller set to collect vapor
at approximately 12.5 mL/min.
All samples were returned under chain-of-custody to Geosyntec’s office in Columbia, Maryland,
where they were sent via courier to Eurofins Lancaster Laboratories in Lancaster, Pennsylvania
Mr. Chris Jeffcoat
20 March 2014
Page 3

MN1047/MD14103 PRIVILEGED AND CONFIDENTIAL
for laboratory analysis. A total of six air samples were analyzed under an expedited 5-day
turnaround time for volatile organic compounds (VOCs) by EPA Compendium Method TO-15.
SUMMARY OF RESULTS

A summary of the detected vapor constituent analytical results is provided in Table 1, and the
laboratory report is provided in Appendix B to this report. Laboratory data was compared
against the Non-Residential VISLs promulgated by NCDENR. As shown in Table 1, no
constituents analyzed in either of the sub-slab samples were detected at concentrations at or
above the Non-Residential VISLs.
Two constituents, chloroform and PCE, were detected at concentrations above the North
Carolina Non-Residential VISLs for soil gas samples, as follows:
• Chloroform was detected in soil gas sample SG-1 at 830 micrograms per cubic meter
(ug/m3); this is above the Non-Residential VISL of 533 ug/m3; and
• PCE was detected in soil gas sample SG-1 at 9,600 ug/m3 and in soil gas sample SG-2 at
14,000 ug/m3, both above the Non-Residential VISL of 3,500 ug/m3 for chloroform.
Several VOCs, including PCE, acetone, toluene, and xylene, were detected in the ambient air
sample, which is considered to be ambient background. Even taking this background correction
into account, the soil gas results noted above are in excess of their respective VISL.
Geosyntec evaluated the possibility that a source other than groundwater contamination explains
the soil gas concentration for PCE. Assuming that the PCE that was previously detected in
groundwater was in equilibrium with soil gas above the water table, the concentration of PCE in
soil gas can be estimated with Henry’s Law:
ܥ௦௢௜௟ ௚௔௦,௧௛௘௢௥௘௧௜௖௔௟ =ܪ×ܥ௚௥௢௨௡ௗ௪௔௧௘௥ × ൬1000 ܮ
݉ଷ ൰
where C is concentration and H is the Henry’s Law coefficient, a dimensionless physical
property of a compound that relates the concentration of a compound in a dilute aqueous solution
to the concentration of that compound in vapor when the two phases are in equilibrium (0.753
for PCE). In this calculation, the only source of PCE contributing to the soil gas is volatilization
across the water table, from groundwater to the overlying vadose zone. If the measured soil gas
concentration significantly exceeds the theoretical concentration, it can be inferred that a source
of PCE is present in the vadose zone. For PCE, a groundwater concentration of 144 ug/L
corresponds to a theoretical soil gas concentration of 108,432 ug/m3. The measured soil gas
concentrations were more than an order of magnitude less than the theoretical soil gas
concentration, indicating that it is not likely that a source of PCE is remaining in the vadose
zone.
Mr. Chris Jeffcoat
20 March 2014
Page 4

MN1047/MD14103 PRIVILEGED AND CONFIDENTIAL
CONCLUSIONS
The laboratory data indicate that no sub-slab vapors exceed regulatory guidelines. These
guidelines were only exceeded in soil gas samples (10 feet below ground surface) and were not
exceeded in sub-slab samples.
It appears as though the soil gas concentrations of PCE in the area of SB-2 are attributable to
volatilization from groundwater, as determined from comparing measured concentrations to
theoretical concentrations corresponding to equilibrium with groundwater. From the standpoint
of a conceptual site model, PCE concentrations attenuate along the vapor intrusion pathway from
groundwater to soil gas to sub-slab vapor, where the measured sub-slab concentrations were less
than VISLs. As such, Geosyntec generally concludes that in the area of SB-2, impacts to soil
vapor are more likely to have resulted from chlorinated solvent-impacted groundwater from
beneath the building than from shallow soil source material immediately below the slab floor.
Neither the groundwater nor soil gas detections result in a vapor intrusion concern at this time in
the location of boring SB-2, based on the data which represents our current understanding at the
time of the data collection.
LIMITATIONS
Geosyntec has prepared this report at the request of SPGPrints. The findings and conclusions
presented in this report are the result of Geosyntec’s professional interpretation of the
information collected at the time of the above-described field work. Geosyntec cannot “certify”
or guarantee that any property is free of environmental impairment. No warranties regarding the
environmental quality of the property are expressed or implied. Use of the information
contained in this report by anyone other than the client, or other parties expressly stated is
permissible only with prior written authorization to do so from Geosyntec. Geosyntec is not
responsible for independent conclusions, opinions, or recommendations made by others or
otherwise based on the findings presented in this report.

Mr. Chris Jeffcoat
20 March 2014
Page 5

MN1047/MD14103 PRIVILEGED AND CONFIDENTIAL
CLOSING

Geosyntec appreciates the opportunity to provide these services to SPGPrints. If you have any
questions, please do not hesitate to contact Kevin Philpy ([e-mail]) or Mark
Johnson ([e-mail]) at [phone].
Very truly yours,
GEOSYNTEC CONSULTANTS

Kevin Philpy Mark Johnson
Engineer Senior Engineer

Attachments: Table 1 – Soil Vapor Concentrations
Figure 1 – Vapor Sampling Locations
Appendix A – Geosyntec Suggested Operating Procedures
Appendix B – Laboratory Analytical Data

Copies to: Mr. Peter Delmee – SPGPrints America
Mr. Jos Bongers – SPGPrints BV
Mr. Micha van den Boogerd – Tauw BV
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50 0 5025 Feet
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Legend
")Sub Slab Locations
#Soil Gas Borings
!.Phase II Soil Borings
Notes:
Aerial Imagery accessed via ArcGIS Online and provided by
Microsoft on 13-March 2014. Image taken on 19 March 2011.
Boring locations are approximate.
PRIVILEGED AND CONFIDENTIAL

Appendix A

Geosyntec Suggested Operating Procedures

1 2009.12.03
SUGGESTED OPERATING PROCEDURE
SOIL GAS PROBE INSTALLATION
Geosyntec Consultants, Inc.
Last revision: December 2009
1 INTRODUCTION
This suggested operating procedure (SOP) describes the design and methods for the installation
of soil gas probes of sufficient quality to assess potential human health risks due to subsurface
vapor intrusion to indoor air and subsequent inhalation exposures.
2 SOIL GAS PROBE DESIGN AND INSTALLATION
2.1 Compliance with Site Dig Permits and Utility Clearances
Site specific permits may be required prior to subsurface activities. All necessary permits will be
secured in advance of any drilling activities. Underground utilities (water, sewer, electricity, gas,
cable, telephone, etc.) will be reviewed prior to any drilling.
2.2 Soil Coring via GeoProbe®
Soil core will be collected with a GeoProbe® direct push system (or equivalent). This method
minimizes the disturbance to the geologic materials surrounding a soil gas probe subsequently
installed in the core-hole. A 2-inch diameter core barrel will be used, since this provides
sufficient core volume for field screening, geologic logging, and selected laboratory analyses (if
required).
2.3 Geologic Logging
Soil cores will be visually inspected to record details of the color, texture, moisture, density,
cohesion, plasticity, staining, and odor. Digital photographs will be taken of each soil core.
2.4 Soil Samples for Analysis of Physical Properties (if required)
After geologic logging of the soil core, soil samples will be collected for laboratory analysis of
moisture content, grain-size distribution, porosity and bulk density. The analysis will be
completed by a laboratory according to the following methods:
Soil Moisture Content: ASTM D2216
Grain Size: ASTM D422
Porosity: API RP40
Bulk density: API RP40

2 2009.12.03

Samples will be selected to represent each distinct geologic layer. The number of samples to be
collected will be determined by the geologist after inspection of the soil core and consideration
of the degree of heterogeneity in the geologic materials.
2.5 Soil Gas Probe Installation
Each soil gas probe will consist of ¼-inch diameter Nylaflow® or Teflon® tubing connected
with a compression fitting to a ¼-inch-diameter stainless steel sampling point. Probes will be
installed inside the borehole and a sand filter pack will be placed in the annulus to a height of 6
inches above the top of the screen. Granular bentonite will be placed in two lifts of 3 inches
above the filter pack and hydrated with a small amount of distilled water after each lift. A thick
slurry of powdered bentonite and water will be added to seal the remainder of the borehole
annulus to ground surface. The top of the probe will be fitted with a compression-fit brass or
stainless steel ball valve to maintain an air-tight seal between installation and sampling.
Permanent probes will be completed with a traffic rated flush mount protective casing.
3 DOCUMENTATION
Field documentation will include the following information:
• name and number of project;
• name of field personnel;
• date and time of sampling event;
• list of the primary activities performed;
• identification of probes drilled and installed;
• all related information (weather, attendees, equipment problems, any departures
from standard procedures and the reasons and responses) observed throughout the
day;
• field instrument information and calibration data (includes time and reading for
each instrument calibration check; and
• volume of probe dead space volume for each soil gas probe.

SOIL GAS PROBE CONSTRUCTION
Probe ID
Project Name
Project Number
Permit Number
Installation Date(s)
Drilling Method
Borehole Diameter
Materials Used
Riser Pipe: Diameter cm/inches
Construction
PVC
Stainless Steel
Other
Site Location
Field Personnel
Recorded By
Screen : Length cm/inches
Diameter cm/inches

Construction
PVC
Stainless Steel
Other
schedule
Length cm/inches
Stickup cm/inches
Construction
Protective Casing:
Cast Aluminum
Cast Steel
Other
Top Cap:PVCBrass
Flush mount
Above grade
Stainless
Casing Installation:
schedule
Drilling Contractor
Driller
Depth cm/inches
Diameter cm/inches
feet*
feet*
feet*
feet*
feet*
feet*
feet*
Measuring Point is Top of Well Casing
Unless Otherwise Noted
* Depth Below Ground Surface
ground surface elevationsurveyedestimated
concretecement
granular bentonite slurry
course sand drainage layer
pea gravel drainage layer
bentonite/slurry
probe in diameter
drilled hole in diameter
sand pack
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www.geosyntec.com

1 2009.12.03

SUGGESTED OPERATING PROCEDURE
SOIL GAS SAMPLING
Geosyntec Consultants, Inc.
Last revision: December 2009
1 INTRODUCTION
This suggested operating procedure (SOP) describes the methods for sampling sub-slab and soil
gas probes of sufficient quality to assess potential human health risks due to subsurface vapor
intrusion to indoor air and subsequent inhalation exposures.
2 VACUUM SHUT-IN LEAK TEST
The sampling equipment will be assembled as shown in Figure 2, and will be checked for leaks
by conducting a “shut-in” test prior to purging. Valves V-1 and V-3 will be closed (valves V-2
and V-4 open) and then the lung box and Tedlar® bag will be used to exert a vacuum on the sampling train (80 - 100 inches of water [in-H2O]). Valve V-2 will then be closed and the
vacuum observed for at least 60 seconds to ensure it does not dissipate.
If the test indicates a leak, the connections should be disconnected and carefully reconnected one
at a time until the leak is fixed. The leak test must be repeated until all leaks have been fixed.
3 HELIUM LEAK TEST
After the “shut –in” test, a Tedlar bag will be attached to the tubing inside the lung-box and the lid of the lung box will be secured. V-2 will remain closed while the valve under the shroud (V-1 and V-4) will be opened and the shroud filled with helium (10 to 30%). The minimum and
maximum concentrations of helium observed in the shroud during the collection of each Tedlar
bag sample will be recorded. The lung box will be turned on and V-2 opened to begin purging.
The Tedlar bag will fill at flow rate constrained by the flow controller, typically about 200 mL/min. The time to fill the Tedlar bag should be recorded. The Tedlar bag will visibly fill inside the lung box. As it approaches ¾ full, valve V-2 will be closed and the lung box will be
turned off.
The lid of the lung box will be opened, the valve on the Tedlar bag closed, and the Tedlar bag
removed from the lung box. The Tedlar bag will be connected to the helium meter and the stabilized reading will be recorded.
If the concentration of helium in the Tedlar bag is greater than 5% of the concentration in the
shroud, the probe seal and fittings should be checked to determine the location of the leak. Once
the leak has been fixed, resume purging and field screening. The purging and field screening
procedure will be repeated for a minimum of three sets of readings.

2 2009.12.03

4 SUMMA CANISTER LEAK TEST
Valve V-1 and V-4 will be closed and then valve V-3 (summa canister valve) will be opened to
induce a vacuum on the sample train. The vacuum in the sample train will be observed for a
short duration (30 seconds) to ensure it does not dissipate as a final check that the sample train
does not contain any leaks. Valve V-1 will then be opened and the sample collection time recorded. The vacuum gauge on the Summa canister should be monitored and closed when the
residual vacuum in the canister is about 5 in Hg.
5 EQUIPMENT BLANK
The equipment blank is collected by connecting a Summa canister to a fully assembled soil gas
probe (screen, tubing, and valve) prior to installation via Swagelok fittings through a 200
milliliter per minute (mL/min) flow controller. The Summa canister valve is opened to draw the
contents of the tubing and outdoor air into the canister through the probe tip and Swagelok valve.

1 2009.12.03
SUGGESTED OPERATING PROCEDURE
SUB-SLAB PROBE INSTALLATION
Geosyntec Consultants, Inc.
Last revision: December 2009

1 INTRODUCTION
Beneath most concrete floor slabs is a layer of granular fill material (for structural purposes) that
is normally relatively permeable to soil gas; therefore, in most cases it is relatively simple to drill
through the concrete floor and extract a sample of the sub-slab soil gas via vacuum for chemical
analysis. This suggested operating procedure (SOP) describes methods for the installation of
sub-slab probes of sufficient quality to assess potential human health risks due to subsurface
vapor intrusion to indoor air and subsequent inhalation exposures.
2 SUB-SLAB PROBE DESIGN AND INSTALLATION
2.1 Utility Clearances
Underground utilities (water, sewer, electricity, gas, cable, telephone, etc.) should be reviewed
prior to any drilling.
2.2 Probe Design and Installation
Sub-slab probes will be installed within a hole drilled through the concrete floor slab. If the floor
is covered with carpet, a flap will be neatly cut in the carpet with a sharp knife and lifted to
access the concrete beneath. After all testing is complete; the carpet flap can be re-secured to the
floor with an adhesive. If floor tiles are present, they should be cut with a tile-knife and lifted
before drilling to avoid chipping to the extent practicable.
Holes in the concrete slab will be drilled using a heavy-duty electrical hammer-drill. Two
different diameters of drill bits will be needed: 3/4-inch and 1.5-inch. The 3/4-inch bit must be
long enough to penetrate the entire floor slab (typically 6 inches, but occasionally up to 12 inches
in industrial buildings) and the 1.5-inch bit only needs to be 6-inches in length. The upper two
inches of the hole will be drilled using the 1.5-inch diameter bit. Generated dust will be removed
from the hole and then the 3/4-inch diameter hole will be drilled through the centre of the hole
until it punctures the floor slab and just enters the underlying granular fill materials, but will not
continue into the underlying geologic materials. A significant increase in the rate of the drill-bit
penetration or decrease in resistance will usually indicate the bottom of the slab.
Upon completion of drilling, the sub-slab probe insert will be installed and sealed promptly to
minimize any potential air flow into or out of the drilled hole. The probe insert consists of a brass
or stainless steel threaded pipe, coupling, and plug and should not extend beyond the bottom of

2 2009.12.03
the floor slab. All threaded couplings should be wrapped with Teflon™ tape to ensure air-tight
seals. The sub-slab probe insert will be set so that the cap is flush with the floor grade. The cap
should be secured any time the probe is not being used for monitoring.
The sub-slab probe insert will be set in the drilled hole through the concrete and grouted into
place using anchoring cement (available at building supply stores and normally used to seal
cracks in concrete foundations). Silicone sealants, caulking, or any other material that could
potentially give off vapors will not be used. The seal must be placed to allow the cap to be
removed during monitoring events.
3 DOCUMENTATION
Field documentation will include the following information:
• name and number of project;
• name of field personnel;
• date and time of sampling event;
• list of the primary activities performed;
• identification of probes drilled and installed;
• all related information (weather, attendees, equipment problems, any departures
from standard procedures and the reasons and responses) observed throughout the
day; and
• field instrument information and calibration data (includes time and reading for
each instrument calibration check.

Appendix B

Laboratory Analytical Data

ANALYTICAL RESULTS
Prepared by:
Eurofins Lancaster Laboratories Environmental 2425 New Holland Pike Lancaster, PA 17601
Prepared for:
Geosyntec Consultants Suite A 10220 Old Columbia Road
Columbia MD 21046 March 11, 2014

Project: Charlotte MN1047
Submittal Date: 03/05/2014 Group Number: 1457072
SDG: CHR01 PO Number: MN1047
State of Sample Origin: NC
Client Sample Description Lancaster Labs (LL) #
SS-1 Composite Air 7382891 SG-2 Composite Air 7382892
SS-2 Composite Air 7382893 SG-3 Composite Air 7382894
SG-1 Composite Air 7382895 AMBIENT Composite Air 7382896

The specific methodologies used in obtaining the enclosed analytical results are indicated on the Laboratory Sample Analysis Record.

ELECTRONIC
COPY TO
Geosyntec Consultants Attn: Mike Hansen
ELECTRONIC
COPY TO
Geosyntec Consultants Attn: Kevin Philpy

Page 1 of 21

Respectfully Submitted,

[phone]

Page 2 of 21
Case Narrative
Project Name: Charlotte MN1047
LLI Group #: 1457072
General Comments:
See the Laboratory Sample Analysis Record section of the Analysis Report for the
method references.
All QC met criteria unless otherwise noted in an Analysis Specific Comment below.
Refer to the QC Summary for specific values and acceptance criteria.
Project specific QC samples are not included in this data set
Matrix QC may not be reported if site-specific QC samples were not submitted. In
these situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD
was performed, unless otherwise specified in the method.
Surrogate recoveries (if applicable) which are outside of the QC window are confirmed
unless attributed to a dilution or otherwise noted in an Analysis Specific Comment
below.
The samples were received at the appropriate temperature and in accordance with the
chain of custody unless otherwise noted.
Analysis Specific Comments:
No additional comments are necessary.
v 1.9.1 3/11/2014 7:47:42PM
Page 3 of 21

LL Sample # AQ 7382891
LL Group # 1457072
Account # 09811
Sample Description: SS-1 Composite Air
SUMMA CAN# 982
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/03/2014 15:39 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRS1 SDG#: CHR01-01
through 03/03/2014 15:45
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
mg/m3mg/m3 ppm(v)ppm(v)Volatiles in Air ASTM D1946
1,600N.D. N.D.27440-59-7 10341 10,000Helium as Tracer Gas
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.242 18 167-64-1 05298 0.50Acetone
0.642.6 J 0.83 J 171-43-2 05298 0.20Benzene
1.34.3 J 0.67 J 1108-86-1 05298 0.20Bromobenzene
1.3N.D. N.D.175-27-4 05298 0.20Bromodichloromethane
2.1N.D. N.D.175-25-2 05298 0.20Bromoform
0.78N.D. N.D.174-83-9 05298 0.20Bromomethane
0.88N.D. N.D.1106-99-0 05298 0.401,3-Butadiene
1.520 6.8 178-93-3 05298 0.502-Butanone
1.63.1 J 0.98 J 175-15-0 05298 0.50Carbon Disulfide
1.3N.D. N.D.156-23-5 05298 0.20Carbon Tetrachloride
0.92N.D. N.D.1108-90-7 05298 0.20Chlorobenzene
0.7110 2.9 175-45-6 05298 0.20Chlorodifluoromethane
0.53N.D. N.D.175-00-3 05298 0.20Chloroethane
0.989.9 2.0 167-66-3 05298 0.20Chloroform
0.41N.D. N.D.174-87-3 05298 0.20Chloromethane
0.63N.D. N.D.1107-05-1 05298 0.203-Chloropropene
0.985.1 1.0 198-82-8 05298 0.20Cumene
1.7N.D. N.D.1124-48-1 05298 0.20Dibromochloromethane
1.5N.D. N.D.1106-93-4 05298 0.201,2-Dibromoethane
1.4N.D. N.D.174-95-3 05298 0.20Dibromomethane
1.245 7.4 195-50-1 05298 0.201,2-Dichlorobenzene
1.231 5.2 1541-73-1 05298 0.201,3-Dichlorobenzene
1.231 5.1 1106-46-7 05298 0.201,4-Dichlorobenzene
0.993.1 J 0.64 J 175-71-8 05298 0.20Dichlorodifluoromethane
0.81N.D. N.D.175-34-3 05298 0.201,1-Dichloroethane
0.81N.D. N.D.1107-06-2 05298 0.201,2-Dichloroethane
0.791.8 J 0.44 J 175-35-4 05298 0.201,1-Dichloroethene
0.790.87 J 0.22 J 1156-59-2 05298 0.20cis-1,2-Dichloroethene
0.79N.D. N.D.1156-60-5 05298 0.20trans-1,2-Dichloroethene
0.84N.D. N.D.175-43-4 05298 0.20Dichlorofluoromethane
0.92N.D. N.D.178-87-5 05298 0.201,2-Dichloropropane
0.91N.D. N.D.110061-01-505298 0.20cis-1,3-Dichloropropene
0.91N.D. N.D.110061-02-605298 0.20trans-1,3-Dichloropropene
0.8747 11 1100-41-4 05298 0.20Ethylbenzene
0.9821 4.2 1622-96-8 05298 0.204-Ethyltoluene
3.8N.D. N.D.176-13-1 05298 0.50Freon 113
1.4N.D. N.D.176-14-2 05298 0.20Freon 114
0.82N.D. N.D.1142-82-5 05298 0.20Heptane
1.914 1.4 167-72-1 05298 0.20Hexachloroethane
0.703.8 1.1 1110-54-3 05298 0.20Hexane
2.0N.D. N.D.1591-78-6 05298 0.502-Hexanone
0.9359 13 1540-84-1 05298 0.20Isooctane
0.72N.D. N.D.11634-04-4 05298 0.20Methyl t-Butyl Ether
2.02.8 J 0.68 J 1108-10-1 05298 0.504-Methyl-2-Pentanone
0.69N.D. N.D.175-09-2 05298 0.20Methylene Chloride
0.932.3 J 0.50 J 1111-65-9 05298 0.20Octane
0.5925 8.3 1109-66-0 05298 0.20Pentane
0.85N.D. N.D.1100-42-5 05298 0.20Styrene
Page 4 of 21

LL Sample # AQ 7382891
LL Group # 1457072
Account # 09811
Sample Description: SS-1 Composite Air
SUMMA CAN# 982
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/03/2014 15:39 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRS1 SDG#: CHR01-01
through 03/03/2014 15:45
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.43.5 J 0.50 J 1630-20-6 05298 0.201,1,1,2-Tetrachloroethane
1.41.9 J 0.28 J 179-34-5 05298 0.201,1,2,2-Tetrachloroethane
2703,100 460 200127-18-4 05298 40Tetrachloroethene
0.756.0 1.6 1108-88-3 05298 0.20Toluene
1.1N.D. N.D.171-55-6 05298 0.201,1,1-Trichloroethane
1.1N.D. N.D.179-00-5 05298 0.201,1,2-Trichloroethane
1.13.7 J 0.68 J 179-01-6 05298 0.20Trichloroethene
1.119 3.3 175-69-4 05298 0.20Trichlorofluoromethane
1.21.9 J 0.31 J 196-18-4 05298 0.201,2,3-Trichloropropane
0.9857 12 195-63-6 05298 0.201,2,4-Trimethylbenzene
0.9834 6.8 1108-67-8 05298 0.201,3,5-Trimethylbenzene
0.51N.D. N.D.175-01-4 05298 0.20Vinyl Chloride
0.87140 31 1179601-23-105298 0.20m/p-Xylene
0.87100 24 195-47-6 05298 0.20o-Xylene
MDL = Method Detection Limit
General Sample Comments
State of North Carolina Lab Certification No. 521

All QC is compliant unless otherwise noted. Please refer to the Quality
Control Summary for overall QC performance data and associated samples.
Method Analysis Name CAT
No. Analysis
Date and Time
Batch#Trial#Dilution
Factor
Analyst
Laboratory Sample Analysis Record
2Jeffrey B Smith03/07/2014 15:09 14066HE011ASTM D1946 Helium as Tracer Gas 10341
1Jeffrey B Smith03/06/2014 11:07 D1406330AB1EPA TO-15 TO 15 VOA Ext. List 05298
200Michael A Ziegler03/06/2014 22:29 D1406330AC1EPA TO-15 TO 15 VOA Ext. List 05298
Page 5 of 21

LL Sample # AQ 7382892
LL Group # 1457072
Account # 09811
Sample Description: SG-2 Composite Air
SUMMA CAN# 956
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/04/2014 13:20 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRG2 SDG#: CHR01-02
through 03/04/2014 13:25
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
mg/m3mg/m3 ppm(v)ppm(v)Volatiles in Air ASTM D1946
1,600N.D. N.D.27440-59-7 10341 10,000Helium as Tracer Gas
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1273 31 1067-64-1 05298 5.0Acetone
6.4N.D. N.D.1071-43-2 05298 2.0Benzene
13N.D. N.D.10108-86-1 05298 2.0Bromobenzene
13N.D. N.D.1075-27-4 05298 2.0Bromodichloromethane
21N.D. N.D.1075-25-2 05298 2.0Bromoform
7.8N.D. N.D.1074-83-9 05298 2.0Bromomethane
8.8N.D. N.D.10106-99-0 05298 4.01,3-Butadiene
15N.D. N.D.1078-93-3 05298 5.02-Butanone
1655 18 1075-15-0 05298 5.0Carbon Disulfide
13N.D. N.D.1056-23-5 05298 2.0Carbon Tetrachloride
9.2N.D. N.D.10108-90-7 05298 2.0Chlorobenzene
7.134 J 9.5 J 1075-45-6 05298 2.0Chlorodifluoromethane
5.3N.D. N.D.1075-00-3 05298 2.0Chloroethane
9.8340 69 1067-66-3 05298 2.0Chloroform
4.1N.D. N.D.1074-87-3 05298 2.0Chloromethane
6.3N.D. N.D.10107-05-1 05298 2.03-Chloropropene
9.8N.D. N.D.1098-82-8 05298 2.0Cumene
17N.D. N.D.10124-48-1 05298 2.0Dibromochloromethane
15N.D. N.D.10106-93-4 05298 2.01,2-Dibromoethane
14N.D. N.D.1074-95-3 05298 2.0Dibromomethane
12N.D. N.D.1095-50-1 05298 2.01,2-Dichlorobenzene
12N.D. N.D.10541-73-1 05298 2.01,3-Dichlorobenzene
12N.D. N.D.10106-46-7 05298 2.01,4-Dichlorobenzene
9.917 J 3.5 J 1075-71-8 05298 2.0Dichlorodifluoromethane
8.1N.D. N.D.1075-34-3 05298 2.01,1-Dichloroethane
8.1N.D. N.D.10107-06-2 05298 2.01,2-Dichloroethane
7.918 J 4.5 J 1075-35-4 05298 2.01,1-Dichloroethene
7.9N.D. N.D.10156-59-2 05298 2.0cis-1,2-Dichloroethene
7.9N.D. N.D.10156-60-5 05298 2.0trans-1,2-Dichloroethene
8.4N.D. N.D.1075-43-4 05298 2.0Dichlorofluoromethane
9.2N.D. N.D.1078-87-5 05298 2.01,2-Dichloropropane
9.1N.D. N.D.1010061-01-505298 2.0cis-1,3-Dichloropropene
9.1N.D. N.D.1010061-02-605298 2.0trans-1,3-Dichloropropene
8.719 J 4.3 J 10100-41-4 05298 2.0Ethylbenzene
9.8N.D. N.D.10622-96-8 05298 2.04-Ethyltoluene
38N.D. N.D.1076-13-1 05298 5.0Freon 113
14N.D. N.D.1076-14-2 05298 2.0Freon 114
8.2N.D. N.D.10142-82-5 05298 2.0Heptane
19N.D. N.D.1067-72-1 05298 2.0Hexachloroethane
7.0N.D. N.D.10110-54-3 05298 2.0Hexane
20N.D. N.D.10591-78-6 05298 5.02-Hexanone
9.3N.D. N.D.10540-84-1 05298 2.0Isooctane
7.2N.D. N.D.101634-04-4 05298 2.0Methyl t-Butyl Ether
2023 J 5.7 J 10108-10-1 05298 5.04-Methyl-2-Pentanone
6.9N.D. N.D.1075-09-2 05298 2.0Methylene Chloride
9.3N.D. N.D.10111-65-9 05298 2.0Octane
5.9N.D. N.D.10109-66-0 05298 2.0Pentane
8.5N.D. N.D.10100-42-5 05298 2.0Styrene
Page 6 of 21

LL Sample # AQ 7382892
LL Group # 1457072
Account # 09811
Sample Description: SG-2 Composite Air
SUMMA CAN# 956
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/04/2014 13:20 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRG2 SDG#: CHR01-02
through 03/04/2014 13:25
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
14N.D. N.D.10630-20-6 05298 2.01,1,1,2-Tetrachloroethane
14N.D. N.D.1079-34-5 05298 2.01,1,2,2-Tetrachloroethane
14014,000 2,000 100127-18-4 05298 20Tetrachloroethene
7.5390 100 10108-88-3 05298 2.0Toluene
11N.D. N.D.1071-55-6 05298 2.01,1,1-Trichloroethane
11N.D. N.D.1079-00-5 05298 2.01,1,2-Trichloroethane
1131 J 5.8 J 1079-01-6 05298 2.0Trichloroethene
1144 J 7.9 J 1075-69-4 05298 2.0Trichlorofluoromethane
12N.D. N.D.1096-18-4 05298 2.01,2,3-Trichloropropane
9.823 J 4.6 J 1095-63-6 05298 2.01,2,4-Trimethylbenzene
9.819 J 3.8 J 10108-67-8 05298 2.01,3,5-Trimethylbenzene
5.1N.D. N.D.1075-01-4 05298 2.0Vinyl Chloride
8.7100 24 10179601-23-105298 2.0m/p-Xylene
8.7150 34 1095-47-6 05298 2.0o-Xylene
MDL = Method Detection Limit
General Sample Comments
State of North Carolina Lab Certification No. 521

All QC is compliant unless otherwise noted. Please refer to the Quality
Control Summary for overall QC performance data and associated samples.
Method Analysis Name CAT
No. Analysis
Date and Time
Batch#Trial#Dilution
Factor
Analyst
Laboratory Sample Analysis Record
2Jeffrey B Smith03/07/2014 15:20 14066HE011ASTM D1946 Helium as Tracer Gas 10341
10Jeffrey B Smith03/06/2014 11:50 D1406330AB1EPA TO-15 TO 15 VOA Ext. List 05298
100Michael A Ziegler03/06/2014 23:17 D1406330AC1EPA TO-15 TO 15 VOA Ext. List 05298
Page 7 of 21

LL Sample # AQ 7382893
LL Group # 1457072
Account # 09811
Sample Description: SS-2 Composite Air
SUMMA CAN# 1168
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/03/2014 17:12 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRS2 SDG#: CHR01-03
through 03/03/2014 17:19
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
mg/m3mg/m3 ppm(v)ppm(v)Volatiles in Air ASTM D1946
1,600N.D. N.D.27440-59-7 10341 10,000Helium as Tracer Gas
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.253 22 167-64-1 05298 0.50Acetone
0.641.1 J 0.35 J 171-43-2 05298 0.20Benzene
1.3N.D. N.D.1108-86-1 05298 0.20Bromobenzene
1.3N.D. N.D.175-27-4 05298 0.20Bromodichloromethane
2.1N.D. N.D.175-25-2 05298 0.20Bromoform
0.78N.D. N.D.174-83-9 05298 0.20Bromomethane
0.88N.D. N.D.1106-99-0 05298 0.401,3-Butadiene
1.59.7 3.3 178-93-3 05298 0.502-Butanone
1.62.8 J 0.89 J 175-15-0 05298 0.50Carbon Disulfide
1.3N.D. N.D.156-23-5 05298 0.20Carbon Tetrachloride
0.92N.D. N.D.1108-90-7 05298 0.20Chlorobenzene
0.7126 7.4 175-45-6 05298 0.20Chlorodifluoromethane
0.53N.D. N.D.175-00-3 05298 0.20Chloroethane
0.982.5 J 0.51 J 167-66-3 05298 0.20Chloroform
0.410.44 J 0.21 J 174-87-3 05298 0.20Chloromethane
0.63N.D. N.D.1107-05-1 05298 0.203-Chloropropene
0.98N.D. N.D.198-82-8 05298 0.20Cumene
1.7N.D. N.D.1124-48-1 05298 0.20Dibromochloromethane
1.5N.D. N.D.1106-93-4 05298 0.201,2-Dibromoethane
1.4N.D. N.D.174-95-3 05298 0.20Dibromomethane
1.22.9 J 0.48 J 195-50-1 05298 0.201,2-Dichlorobenzene
1.22.3 J 0.38 J 1541-73-1 05298 0.201,3-Dichlorobenzene
1.22.3 J 0.39 J 1106-46-7 05298 0.201,4-Dichlorobenzene
0.993.2 J 0.65 J 175-71-8 05298 0.20Dichlorodifluoromethane
0.81N.D. N.D.175-34-3 05298 0.201,1-Dichloroethane
0.81N.D. N.D.1107-06-2 05298 0.201,2-Dichloroethane
0.79N.D. N.D.175-35-4 05298 0.201,1-Dichloroethene
0.79N.D. N.D.1156-59-2 05298 0.20cis-1,2-Dichloroethene
0.79N.D. N.D.1156-60-5 05298 0.20trans-1,2-Dichloroethene
0.84N.D. N.D.175-43-4 05298 0.20Dichlorofluoromethane
0.92N.D. N.D.178-87-5 05298 0.201,2-Dichloropropane
0.91N.D. N.D.110061-01-505298 0.20cis-1,3-Dichloropropene
0.91N.D. N.D.110061-02-605298 0.20trans-1,3-Dichloropropene
0.874.0 J 0.91 J 1100-41-4 05298 0.20Ethylbenzene
0.981.0 J 0.21 J 1622-96-8 05298 0.204-Ethyltoluene
3.8N.D. N.D.176-13-1 05298 0.50Freon 113
1.4N.D. N.D.176-14-2 05298 0.20Freon 114
0.82N.D. N.D.1142-82-5 05298 0.20Heptane
1.9N.D. N.D.167-72-1 05298 0.20Hexachloroethane
0.70N.D. N.D.1110-54-3 05298 0.20Hexane
2.0N.D. N.D.1591-78-6 05298 0.502-Hexanone
0.93N.D. N.D.1540-84-1 05298 0.20Isooctane
0.72N.D. N.D.11634-04-4 05298 0.20Methyl t-Butyl Ether
2.013 3.2 1108-10-1 05298 0.504-Methyl-2-Pentanone
0.691.4 J 0.41 J 175-09-2 05298 0.20Methylene Chloride
0.931.1 J 0.23 J 1111-65-9 05298 0.20Octane
0.590.99 J 0.34 J 1109-66-0 05298 0.20Pentane
0.85N.D. N.D.1100-42-5 05298 0.20Styrene
Page 8 of 21

LL Sample # AQ 7382893
LL Group # 1457072
Account # 09811
Sample Description: SS-2 Composite Air
SUMMA CAN# 1168
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/03/2014 17:12 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRS2 SDG#: CHR01-03
through 03/03/2014 17:19
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.4N.D. N.D.1630-20-6 05298 0.201,1,1,2-Tetrachloroethane
1.4N.D. N.D.179-34-5 05298 0.201,1,2,2-Tetrachloroethane
27530 77 20127-18-4 05298 4.0Tetrachloroethene
0.751.1 J 0.29 J 1108-88-3 05298 0.20Toluene
1.1N.D. N.D.171-55-6 05298 0.201,1,1-Trichloroethane
1.1N.D. N.D.179-00-5 05298 0.201,1,2-Trichloroethane
1.1N.D. N.D.179-01-6 05298 0.20Trichloroethene
1.19.1 1.6 175-69-4 05298 0.20Trichlorofluoromethane
1.2N.D. N.D.196-18-4 05298 0.201,2,3-Trichloropropane
0.985.5 1.1 195-63-6 05298 0.201,2,4-Trimethylbenzene
0.983.3 J 0.67 J 1108-67-8 05298 0.201,3,5-Trimethylbenzene
0.51N.D. N.D.175-01-4 05298 0.20Vinyl Chloride
0.8717 4.0 1179601-23-105298 0.20m/p-Xylene
0.8721 4.7 195-47-6 05298 0.20o-Xylene
MDL = Method Detection Limit
General Sample Comments
State of North Carolina Lab Certification No. 521

All QC is compliant unless otherwise noted. Please refer to the Quality
Control Summary for overall QC performance data and associated samples.
Method Analysis Name CAT
No. Analysis
Date and Time
Batch#Trial#Dilution
Factor
Analyst
Laboratory Sample Analysis Record
2Jeffrey B Smith03/07/2014 14:05 14066HE011ASTM D1946 Helium as Tracer Gas 10341
1Jeffrey B Smith03/06/2014 12:38 D1406330AB1EPA TO-15 TO 15 VOA Ext. List 05298
20Michael A Ziegler03/07/2014 00:00 D1406330AC1EPA TO-15 TO 15 VOA Ext. List 05298
Page 9 of 21

LL Sample # AQ 7382894
LL Group # 1457072
Account # 09811
Sample Description: SG-3 Composite Air
SUMMA CAN# 1163
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/04/2014 16:28 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRG3 SDG#: CHR01-04
through 03/04/2014 16:35
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
mg/m3mg/m3 ppm(v)ppm(v)Volatiles in Air ASTM D1946
1,600N.D. N.D.27440-59-7 10341 10,000Helium as Tracer Gas
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
241,400 600 2067-64-1 05298 10Acetone
0.6416 4.9 171-43-2 05298 0.20Benzene
1.3N.D. N.D.1108-86-1 05298 0.20Bromobenzene
1.38.0 1.2 175-27-4 05298 0.20Bromodichloromethane
2.1N.D. N.D.175-25-2 05298 0.20Bromoform
0.78N.D. N.D.174-83-9 05298 0.20Bromomethane
0.88N.D. N.D.1106-99-0 05298 0.401,3-Butadiene
29280 96 2078-93-3 05298 102-Butanone
1.625 8.1 175-15-0 05298 0.50Carbon Disulfide
1.3N.D. N.D.156-23-5 05298 0.20Carbon Tetrachloride
0.92N.D. N.D.1108-90-7 05298 0.20Chlorobenzene
0.711.4 J 0.39 J 175-45-6 05298 0.20Chlorodifluoromethane
0.531.7 J 0.64 J 175-00-3 05298 0.20Chloroethane
0.9871 15 167-66-3 05298 0.20Chloroform
0.412.4 1.2 174-87-3 05298 0.20Chloromethane
0.63N.D. N.D.1107-05-1 05298 0.203-Chloropropene
0.98N.D. N.D.198-82-8 05298 0.20Cumene
1.7N.D. N.D.1124-48-1 05298 0.20Dibromochloromethane
1.5N.D. N.D.1106-93-4 05298 0.201,2-Dibromoethane
1.4N.D. N.D.174-95-3 05298 0.20Dibromomethane
1.21.4 J 0.23 J 195-50-1 05298 0.201,2-Dichlorobenzene
1.2N.D. N.D.1541-73-1 05298 0.201,3-Dichlorobenzene
1.2N.D. N.D.1106-46-7 05298 0.201,4-Dichlorobenzene
0.995.2 1.1 175-71-8 05298 0.20Dichlorodifluoromethane
0.812.3 J 0.56 J 175-34-3 05298 0.201,1-Dichloroethane
0.81N.D. N.D.1107-06-2 05298 0.201,2-Dichloroethane
0.795.3 1.3 175-35-4 05298 0.201,1-Dichloroethene
0.79N.D. N.D.1156-59-2 05298 0.20cis-1,2-Dichloroethene
0.79N.D. N.D.1156-60-5 05298 0.20trans-1,2-Dichloroethene
0.84N.D. N.D.175-43-4 05298 0.20Dichlorofluoromethane
0.92N.D. N.D.178-87-5 05298 0.201,2-Dichloropropane
0.91N.D. N.D.110061-01-505298 0.20cis-1,3-Dichloropropene
0.91N.D. N.D.110061-02-605298 0.20trans-1,3-Dichloropropene
0.877.1 1.6 1100-41-4 05298 0.20Ethylbenzene
0.981.1 J 0.23 J 1622-96-8 05298 0.204-Ethyltoluene
3.8N.D. N.D.176-13-1 05298 0.50Freon 113
1.4N.D. N.D.176-14-2 05298 0.20Freon 114
0.8236 8.7 1142-82-5 05298 0.20Heptane
1.9N.D. N.D.167-72-1 05298 0.20Hexachloroethane
0.7044 13 1110-54-3 05298 0.20Hexane
2.032 7.9 1591-78-6 05298 0.502-Hexanone
0.93N.D. N.D.1540-84-1 05298 0.20Isooctane
0.72N.D. N.D.11634-04-4 05298 0.20Methyl t-Butyl Ether
2.010 2.4 1108-10-1 05298 0.504-Methyl-2-Pentanone
0.69N.D. N.D.175-09-2 05298 0.20Methylene Chloride
0.9319 4.1 1111-65-9 05298 0.20Octane
0.5949 16 1109-66-0 05298 0.20Pentane
0.85N.D. N.D.1100-42-5 05298 0.20Styrene
Page 10 of 21

LL Sample # AQ 7382894
LL Group # 1457072
Account # 09811
Sample Description: SG-3 Composite Air
SUMMA CAN# 1163
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/04/2014 16:28 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRG3 SDG#: CHR01-04
through 03/04/2014 16:35
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.4N.D. N.D.1630-20-6 05298 0.201,1,1,2-Tetrachloroethane
1.4N.D. N.D.179-34-5 05298 0.201,1,2,2-Tetrachloroethane
1.4260 39 1127-18-4 05298 0.20Tetrachloroethene
15200 53 20108-88-3 05298 4.0Toluene
1.1260 47 171-55-6 05298 0.201,1,1-Trichloroethane
1.1N.D. N.D.179-00-5 05298 0.201,1,2-Trichloroethane
1.1N.D. N.D.179-01-6 05298 0.20Trichloroethene
1.14.9 J 0.88 J 175-69-4 05298 0.20Trichlorofluoromethane
1.2N.D. N.D.196-18-4 05298 0.201,2,3-Trichloropropane
0.984.4 J 0.89 J 195-63-6 05298 0.201,2,4-Trimethylbenzene
0.981.4 J 0.28 J 1108-67-8 05298 0.201,3,5-Trimethylbenzene
0.510.62 J 0.24 J 175-01-4 05298 0.20Vinyl Chloride
0.8720 4.5 1179601-23-105298 0.20m/p-Xylene
0.877.6 1.8 195-47-6 05298 0.20o-Xylene
MDL = Method Detection Limit
General Sample Comments
State of North Carolina Lab Certification No. 521

All QC is compliant unless otherwise noted. Please refer to the Quality
Control Summary for overall QC performance data and associated samples.
Method Analysis Name CAT
No. Analysis
Date and Time
Batch#Trial#Dilution
Factor
Analyst
Laboratory Sample Analysis Record
2Jeffrey B Smith03/07/2014 14:12 14066HE011ASTM D1946 Helium as Tracer Gas 10341
1Jeffrey B Smith03/06/2014 13:26 D1406330AB1EPA TO-15 TO 15 VOA Ext. List 05298
20Michael A Ziegler03/07/2014 00:43 D1406330AC1EPA TO-15 TO 15 VOA Ext. List 05298
Page 11 of 21

LL Sample # AQ 7382895
LL Group # 1457072
Account # 09811
Sample Description: SG-1 Composite Air
SUMMA CAN# 987
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/04/2014 14:42 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRG1 SDG#: CHR01-05
through 03/04/2014 14:47
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
mg/m3mg/m3 ppm(v)ppm(v)Volatiles in Air ASTM D1946
1,600N.D. N.D.27440-59-7 10341 10,000Helium as Tracer Gas
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
12100 44 1067-64-1 05298 5.0Acetone
6.411 J 3.6 J 1071-43-2 05298 2.0Benzene
13N.D. N.D.10108-86-1 05298 2.0Bromobenzene
13130 19 1075-27-4 05298 2.0Bromodichloromethane
21N.D. N.D.1075-25-2 05298 2.0Bromoform
7.8N.D. N.D.1074-83-9 05298 2.0Bromomethane
8.8N.D. N.D.10106-99-0 05298 4.01,3-Butadiene
15N.D. N.D.1078-93-3 05298 5.02-Butanone
1656 18 1075-15-0 05298 5.0Carbon Disulfide
13N.D. N.D.1056-23-5 05298 2.0Carbon Tetrachloride
9.2N.D. N.D.10108-90-7 05298 2.0Chlorobenzene
7.135 J 10 J 1075-45-6 05298 2.0Chlorodifluoromethane
5.3N.D. N.D.1075-00-3 05298 2.0Chloroethane
9.8850 170 1067-66-3 05298 2.0Chloroform
4.1N.D. N.D.1074-87-3 05298 2.0Chloromethane
6.3N.D. N.D.10107-05-1 05298 2.03-Chloropropene
9.8N.D. N.D.1098-82-8 05298 2.0Cumene
17N.D. N.D.10124-48-1 05298 2.0Dibromochloromethane
15N.D. N.D.10106-93-4 05298 2.01,2-Dibromoethane
14N.D. N.D.1074-95-3 05298 2.0Dibromomethane
12N.D. N.D.1095-50-1 05298 2.01,2-Dichlorobenzene
12N.D. N.D.10541-73-1 05298 2.01,3-Dichlorobenzene
12N.D. N.D.10106-46-7 05298 2.01,4-Dichlorobenzene
9.9N.D. N.D.1075-71-8 05298 2.0Dichlorodifluoromethane
8.1N.D. N.D.1075-34-3 05298 2.01,1-Dichloroethane
8.1N.D. N.D.10107-06-2 05298 2.01,2-Dichloroethane
7.912 J 3.0 J 1075-35-4 05298 2.01,1-Dichloroethene
7.9N.D. N.D.10156-59-2 05298 2.0cis-1,2-Dichloroethene
7.9N.D. N.D.10156-60-5 05298 2.0trans-1,2-Dichloroethene
8.4N.D. N.D.1075-43-4 05298 2.0Dichlorofluoromethane
9.2N.D. N.D.1078-87-5 05298 2.01,2-Dichloropropane
9.1N.D. N.D.1010061-01-505298 2.0cis-1,3-Dichloropropene
9.1N.D. N.D.1010061-02-605298 2.0trans-1,3-Dichloropropene
8.7N.D. N.D.10100-41-4 05298 2.0Ethylbenzene
9.8N.D. N.D.10622-96-8 05298 2.04-Ethyltoluene
38N.D. N.D.1076-13-1 05298 5.0Freon 113
14N.D. N.D.1076-14-2 05298 2.0Freon 114
8.2N.D. N.D.10142-82-5 05298 2.0Heptane
19N.D. N.D.1067-72-1 05298 2.0Hexachloroethane
7.0N.D. N.D.10110-54-3 05298 2.0Hexane
20N.D. N.D.10591-78-6 05298 5.02-Hexanone
9.3N.D. N.D.10540-84-1 05298 2.0Isooctane
7.2N.D. N.D.101634-04-4 05298 2.0Methyl t-Butyl Ether
20N.D. N.D.10108-10-1 05298 5.04-Methyl-2-Pentanone
6.9N.D. N.D.1075-09-2 05298 2.0Methylene Chloride
9.3N.D. N.D.10111-65-9 05298 2.0Octane
5.9N.D. N.D.10109-66-0 05298 2.0Pentane
8.5N.D. N.D.10100-42-5 05298 2.0Styrene
Page 12 of 21

LL Sample # AQ 7382895
LL Group # 1457072
Account # 09811
Sample Description: SG-1 Composite Air
SUMMA CAN# 987
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/04/2014 14:42 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRG1 SDG#: CHR01-05
through 03/04/2014 14:47
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
14N.D. N.D.10630-20-6 05298 2.01,1,1,2-Tetrachloroethane
14N.D. N.D.1079-34-5 05298 2.01,1,2,2-Tetrachloroethane
1409,600 1,400 100127-18-4 05298 20Tetrachloroethene
7.5730 190 10108-88-3 05298 2.0Toluene
11N.D. N.D.1071-55-6 05298 2.01,1,1-Trichloroethane
11N.D. N.D.1079-00-5 05298 2.01,1,2-Trichloroethane
11N.D. N.D.1079-01-6 05298 2.0Trichloroethene
1130 J 5.4 J 1075-69-4 05298 2.0Trichlorofluoromethane
12N.D. N.D.1096-18-4 05298 2.01,2,3-Trichloropropane
9.8N.D. N.D.1095-63-6 05298 2.01,2,4-Trimethylbenzene
9.8N.D. N.D.10108-67-8 05298 2.01,3,5-Trimethylbenzene
5.1N.D. N.D.1075-01-4 05298 2.0Vinyl Chloride
8.722 J 5.0 J 10179601-23-105298 2.0m/p-Xylene
8.79.9 J 2.3 J 1095-47-6 05298 2.0o-Xylene
MDL = Method Detection Limit
General Sample Comments
State of North Carolina Lab Certification No. 521

All QC is compliant unless otherwise noted. Please refer to the Quality
Control Summary for overall QC performance data and associated samples.
Method Analysis Name CAT
No. Analysis
Date and Time
Batch#Trial#Dilution
Factor
Analyst
Laboratory Sample Analysis Record
2Jeffrey B Smith03/07/2014 14:46 14066HE011ASTM D1946 Helium as Tracer Gas 10341
10Jeffrey B Smith03/06/2014 14:09 D1406330AB1EPA TO-15 TO 15 VOA Ext. List 05298
100Michael A Ziegler03/07/2014 01:31 D1406330AC1EPA TO-15 TO 15 VOA Ext. List 05298
Page 13 of 21

LL Sample # AQ 7382896
LL Group # 1457072
Account # 09811
Sample Description: AMBIENT Composite Air
SUMMA CAN# 870
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/03/2014 10:42 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRAB SDG#: CHR01-06AB*
through 03/04/2014 16:37
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
mg/m3mg/m3 ppm(v)ppm(v)Volatiles in Air ASTM D1946
1,600N.D. N.D.27440-59-7 10341 10,000Helium as Tracer Gas
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.216 6.8 167-64-1 05298 0.50Acetone
0.642.7 J 0.85 J 171-43-2 05298 0.20Benzene
1.3N.D. N.D.1108-86-1 05298 0.20Bromobenzene
1.3N.D. N.D.175-27-4 05298 0.20Bromodichloromethane
2.1N.D. N.D.175-25-2 05298 0.20Bromoform
0.78N.D. N.D.174-83-9 05298 0.20Bromomethane
0.88N.D. N.D.1106-99-0 05298 0.401,3-Butadiene
1.53.4 J 1.2 J 178-93-3 05298 0.502-Butanone
1.6N.D. N.D.175-15-0 05298 0.50Carbon Disulfide
1.3N.D. N.D.156-23-5 05298 0.20Carbon Tetrachloride
0.92N.D. N.D.1108-90-7 05298 0.20Chlorobenzene
0.711.3 J 0.37 J 175-45-6 05298 0.20Chlorodifluoromethane
0.53N.D. N.D.175-00-3 05298 0.20Chloroethane
0.98N.D. N.D.167-66-3 05298 0.20Chloroform
0.411.5 J 0.73 J 174-87-3 05298 0.20Chloromethane
0.63N.D. N.D.1107-05-1 05298 0.203-Chloropropene
0.98N.D. N.D.198-82-8 05298 0.20Cumene
1.7N.D. N.D.1124-48-1 05298 0.20Dibromochloromethane
1.5N.D. N.D.1106-93-4 05298 0.201,2-Dibromoethane
1.4N.D. N.D.174-95-3 05298 0.20Dibromomethane
1.22.6 J 0.44 J 195-50-1 05298 0.201,2-Dichlorobenzene
1.22.1 J 0.35 J 1541-73-1 05298 0.201,3-Dichlorobenzene
1.22.2 J 0.36 J 1106-46-7 05298 0.201,4-Dichlorobenzene
0.993.1 J 0.63 J 175-71-8 05298 0.20Dichlorodifluoromethane
0.81N.D. N.D.175-34-3 05298 0.201,1-Dichloroethane
0.81N.D. N.D.1107-06-2 05298 0.201,2-Dichloroethane
0.79N.D. N.D.175-35-4 05298 0.201,1-Dichloroethene
0.79N.D. N.D.1156-59-2 05298 0.20cis-1,2-Dichloroethene
0.79N.D. N.D.1156-60-5 05298 0.20trans-1,2-Dichloroethene
0.84N.D. N.D.175-43-4 05298 0.20Dichlorofluoromethane
0.92N.D. N.D.178-87-5 05298 0.201,2-Dichloropropane
0.91N.D. N.D.110061-01-505298 0.20cis-1,3-Dichloropropene
0.91N.D. N.D.110061-02-605298 0.20trans-1,3-Dichloropropene
0.871.8 J 0.41 J 1100-41-4 05298 0.20Ethylbenzene
0.98N.D. N.D.1622-96-8 05298 0.204-Ethyltoluene
3.8N.D. N.D.176-13-1 05298 0.50Freon 113
1.4N.D. N.D.176-14-2 05298 0.20Freon 114
0.82N.D. N.D.1142-82-5 05298 0.20Heptane
1.9N.D. N.D.167-72-1 05298 0.20Hexachloroethane
0.70N.D. N.D.1110-54-3 05298 0.20Hexane
2.0N.D. N.D.1591-78-6 05298 0.502-Hexanone
0.93N.D. N.D.1540-84-1 05298 0.20Isooctane
0.72N.D. N.D.11634-04-4 05298 0.20Methyl t-Butyl Ether
2.0N.D. N.D.1108-10-1 05298 0.504-Methyl-2-Pentanone
0.691.6 J 0.46 J 175-09-2 05298 0.20Methylene Chloride
0.93N.D. N.D.1111-65-9 05298 0.20Octane
0.591.2 J 0.40 J 1109-66-0 05298 0.20Pentane
0.85N.D. N.D.1100-42-5 05298 0.20Styrene
Page 14 of 21

LL Sample # AQ 7382896
LL Group # 1457072
Account # 09811
Sample Description: AMBIENT Composite Air
SUMMA CAN# 870
Charlotte MN1047

Project Name: Charlotte MN1047
Collected: 03/03/2014 10:42 by MH
Submitted: 03/05/2014 15:50
Geosyntec Consultants
Reported: 03/11/2014 19:46
Suite A
10220 Old Columbia Road
Columbia MD 21046
CHRAB SDG#: CHR01-06AB*
through 03/04/2014 16:37
CAT
No. DFCAS NumberAnalysis Name As Received
Final Result MDL
As Received
Final Result MDL
ug/m3ug/m3 ppb(v)ppb(v)Volatiles in Air EPA TO-15
1.4N.D. N.D.1630-20-6 05298 0.201,1,1,2-Tetrachloroethane
1.4N.D. N.D.179-34-5 05298 0.201,1,2,2-Tetrachloroethane
1.41.7 J 0.26 J 1127-18-4 05298 0.20Tetrachloroethene
0.751.1 J 0.30 J 1108-88-3 05298 0.20Toluene
1.1N.D. N.D.171-55-6 05298 0.201,1,1-Trichloroethane
1.1N.D. N.D.179-00-5 05298 0.201,1,2-Trichloroethane
1.1N.D. N.D.179-01-6 05298 0.20Trichloroethene
1.11.7 J 0.31 J 175-69-4 05298 0.20Trichlorofluoromethane
1.2N.D. N.D.196-18-4 05298 0.201,2,3-Trichloropropane
0.982.5 J 0.50 J 195-63-6 05298 0.201,2,4-Trimethylbenzene
0.98N.D. N.D.1108-67-8 05298 0.201,3,5-Trimethylbenzene
0.51N.D. N.D.175-01-4 05298 0.20Vinyl Chloride
0.874.7 1.1 1179601-23-105298 0.20m/p-Xylene
0.872.9 J 0.67 J 195-47-6 05298 0.20o-Xylene
MDL = Method Detection Limit
General Sample Comments
State of North Carolina Lab Certification No. 521

All QC is compliant unless otherwise noted. Please refer to the Quality
Control Summary for overall QC performance data and associated samples.
Method Analysis Name CAT
No. Analysis
Date and Time
Batch#Trial#Dilution
Factor
Analyst
Laboratory Sample Analysis Record
2Jeffrey B Smith03/07/2014 14:53 14066HE011ASTM D1946 Helium as Tracer Gas 10341
1Michael A Ziegler03/06/2014 21:41 D1406330AC1EPA TO-15 TO 15 VOA Ext. List 05298
Page 15 of 21
Page 1 of 3
Quality Control Summary

Client Name: Geosyntec Consultants Group Number: 1457072
Reported: 03/11/14 at 07:46 PM

*- Outside of specification (1) The result for one or both determinations was less than five times the LOQ.
(2) The unspiked result was more than four times the spike added.

Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these
situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD was performed, unless otherwise
specified in the method.

All Inorganic Initial Calibration and Continuing Calibration Blanks met acceptable method criteria unless
otherwise noted on the Analysis Report.

Laboratory Compliance Quality Control

Blank Blank Report LCS LCSD LCS/LCSD
Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max

Batch number: 14066HE01 Sample number(s): 7382891-7382896
Helium as Tracer Gas N.D. 5,000. ppm(v)

Batch number: D1406330AB Sample number(s): 7382891-7382895
Acetone N.D. 0.50 ppb(v) 118 125 61-134 6 25
Benzene N.D. 0.20 ppb(v) 105 108 70-130 4 25
Bromobenzene N.D. 0.20 ppb(v)
Bromodichloromethane N.D. 0.20 ppb(v) 104 108 62-129 4 25
Bromoform N.D. 0.20 ppb(v) 105 115 64-141 9 25
Bromomethane N.D. 0.20 ppb(v) 102 106 70-130 4 25
1,3-Butadiene N.D. 0.40 ppb(v) 102 105 57-138 3 25
2-Butanone N.D. 0.50 ppb(v) 118 126 60-135 6 25
Carbon Disulfide N.D. 0.50 ppb(v) 115 119 55-121 3 25
Carbon Tetrachloride N.D. 0.20 ppb(v) 105 106 70-130 0 25
Chlorobenzene N.D. 0.20 ppb(v) 102 108 70-130 6 25
Chlorodifluoromethane N.D. 0.20 ppb(v)
Chloroethane N.D. 0.20 ppb(v) 96 98 58-139 2 25
Chloroform N.D. 0.20 ppb(v) 101 101 70-130 0 25
Chloromethane N.D. 0.20 ppb(v) 101 106 48-138 4 25
3-Chloropropene N.D. 0.20 ppb(v)
Cumene N.D. 0.20 ppb(v)
Dibromochloromethane N.D. 0.20 ppb(v) 105 113 65-127 7 25
1,2-Dibromoethane N.D. 0.20 ppb(v) 107 114 65-126 7 25
Dibromomethane N.D. 0.20 ppb(v)
1,2-Dichlorobenzene N.D. 0.20 ppb(v) 95 107 62-132 12 25
1,3-Dichlorobenzene N.D. 0.20 ppb(v) 92 103 63-125 12 25
1,4-Dichlorobenzene N.D. 0.20 ppb(v) 93 106 63-127 13 25
Dichlorodifluoromethane N.D. 0.20 ppb(v) 109 113 61-149 3 25
1,1-Dichloroethane N.D. 0.20 ppb(v) 101 102 67-124 2 25
1,2-Dichloroethane N.D. 0.20 ppb(v) 106 109 70-130 3 25
1,1-Dichloroethene N.D. 0.20 ppb(v) 104 104 61-128 1 25
cis-1,2-Dichloroethene N.D. 0.20 ppb(v) 99 100 65-121 1 25
trans-1,2-Dichloroethene N.D. 0.20 ppb(v) 106 107 66-121 1 25
Dichlorofluoromethane N.D. 0.20 ppb(v)
1,2-Dichloropropane N.D. 0.20 ppb(v) 101 105 70-130 4 25
cis-1,3-Dichloropropene N.D. 0.20 ppb(v) 130 132 64-136 2 25
trans-1,3-Dichloropropene N.D. 0.20 ppb(v) 111 117 61-126 6 25
Ethylbenzene N.D. 0.20 ppb(v) 109 117 70-130 7 25
4-Ethyltoluene N.D. 0.20 ppb(v) 103 115 59-126 11 25
Freon 113 N.D. 0.50 ppb(v) 101 102 63-114 1 25
Freon 114 N.D. 0.20 ppb(v) 100 103 63-123 2 25
Heptane N.D. 0.20 ppb(v) 105 109 56-123 3 25
Hexachloroethane N.D. 0.20 ppb(v)
Hexane N.D. 0.20 ppb(v) 105 106 63-117 1 25
Page 16 of 21
Page 2 of 3
Quality Control Summary

Client Name: Geosyntec Consultants Group Number: 1457072
Reported: 03/11/14 at 07:46 PM

*- Outside of specification (1) The result for one or both determinations was less than five times the LOQ.
(2) The unspiked result was more than four times the spike added.
Blank Blank Report LCS LCSD LCS/LCSD
Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max
2-Hexanone N.D. 0.50 ppb(v) 94 109 47-150 15 25
Isooctane N.D. 0.20 ppb(v)
Methyl t-Butyl Ether N.D. 0.20 ppb(v) 115 121 52-129 5 25
4-Methyl-2-Pentanone N.D. 0.50 ppb(v) 108 121 53-140 11 25
Methylene Chloride N.D. 0.20 ppb(v) 109 109 70-130 1 25
Octane N.D. 0.20 ppb(v)
Pentane N.D. 0.20 ppb(v)
Styrene N.D. 0.20 ppb(v) 111 121 64-130 9 25
1,1,1,2-Tetrachloroethane N.D. 0.20 ppb(v)
1,1,2,2-Tetrachloroethane N.D. 0.20 ppb(v) 100 112 58-133 12 25
Tetrachloroethene N.D. 0.20 ppb(v) 88 94 70-130 7 25
Toluene N.D. 0.20 ppb(v) 107 112 70-130 5 25
1,1,1-Trichloroethane N.D. 0.20 ppb(v) 101 103 70-130 2 25
1,1,2-Trichloroethane N.D. 0.20 ppb(v) 100 106 59-131 6 25
Trichloroethene N.D. 0.20 ppb(v) 100 103 70-130 3 25
Trichlorofluoromethane N.D. 0.20 ppb(v) 104 105 70-130 1 25
1,2,3-Trichloropropane N.D. 0.20 ppb(v)
1,2,4-Trimethylbenzene N.D. 0.20 ppb(v) 97 109 60-128 13 25
1,3,5-Trimethylbenzene N.D. 0.20 ppb(v) 105 118 61-132 12 25
Vinyl Chloride N.D. 0.20 ppb(v) 112 116 70-130 3 25
m/p-Xylene N.D. 0.20 ppb(v) 103 112 70-130 8 25
o-Xylene N.D. 0.20 ppb(v) 109 118 70-130 8 25

Batch number: D1406330AC Sample number(s): 7382891-7382896
Acetone N.D. 0.50 ppb(v) 118 125 61-134 6 25
Benzene N.D. 0.20 ppb(v) 105 108 70-130 4 25
Bromobenzene N.D. 0.20 ppb(v)
Bromodichloromethane N.D. 0.20 ppb(v) 104 108 62-129 4 25
Bromoform N.D. 0.20 ppb(v) 105 115 64-141 9 25
Bromomethane N.D. 0.20 ppb(v) 102 106 70-130 4 25
1,3-Butadiene N.D. 0.40 ppb(v) 102 105 57-138 3 25
2-Butanone N.D. 0.50 ppb(v) 118 126 60-135 6 25
Carbon Disulfide N.D. 0.50 ppb(v) 115 119 55-121 3 25
Carbon Tetrachloride N.D. 0.20 ppb(v) 105 106 70-130 0 25
Chlorobenzene N.D. 0.20 ppb(v) 102 108 70-130 6 25
Chlorodifluoromethane N.D. 0.20 ppb(v)
Chloroethane N.D. 0.20 ppb(v) 96 98 58-139 2 25
Chloroform N.D. 0.20 ppb(v) 101 101 70-130 0 25
Chloromethane N.D. 0.20 ppb(v) 101 106 48-138 4 25
3-Chloropropene N.D. 0.20 ppb(v)
Cumene N.D. 0.20 ppb(v)
Dibromochloromethane N.D. 0.20 ppb(v) 105 113 65-127 7 25
1,2-Dibromoethane N.D. 0.20 ppb(v) 107 114 65-126 7 25
Dibromomethane N.D. 0.20 ppb(v)
1,2-Dichlorobenzene N.D. 0.20 ppb(v) 95 107 62-132 12 25
1,3-Dichlorobenzene N.D. 0.20 ppb(v) 92 103 63-125 12 25
1,4-Dichlorobenzene N.D. 0.20 ppb(v) 93 106 63-127 13 25
Dichlorodifluoromethane N.D. 0.20 ppb(v) 109 113 61-149 3 25
1,1-Dichloroethane N.D. 0.20 ppb(v) 101 102 67-124 2 25
1,2-Dichloroethane N.D. 0.20 ppb(v) 106 109 70-130 3 25
1,1-Dichloroethene N.D. 0.20 ppb(v) 104 104 61-128 1 25
cis-1,2-Dichloroethene N.D. 0.20 ppb(v) 99 100 65-121 1 25
trans-1,2-Dichloroethene N.D. 0.20 ppb(v) 106 107 66-121 1 25
Dichlorofluoromethane N.D. 0.20 ppb(v)
1,2-Dichloropropane N.D. 0.20 ppb(v) 101 105 70-130 4 25
cis-1,3-Dichloropropene N.D. 0.20 ppb(v) 130 132 64-136 2 25
Page 17 of 21
Page 3 of 3
Quality Control Summary

Client Name: Geosyntec Consultants Group Number: 1457072
Reported: 03/11/14 at 07:46 PM

*- Outside of specification (1) The result for one or both determinations was less than five times the LOQ.
(2) The unspiked result was more than four times the spike added.
Blank Blank Report LCS LCSD LCS/LCSD
Analysis Name Result MDL Units %REC %REC Limits RPD RPD Max
trans-1,3-Dichloropropene N.D. 0.20 ppb(v) 111 117 61-126 6 25
Ethylbenzene N.D. 0.20 ppb(v) 109 117 70-130 7 25
4-Ethyltoluene N.D. 0.20 ppb(v) 103 115 59-126 11 25
Freon 113 N.D. 0.50 ppb(v) 101 102 63-114 1 25
Freon 114 N.D. 0.20 ppb(v) 100 103 63-123 2 25
Heptane N.D. 0.20 ppb(v) 105 109 56-123 3 25
Hexachloroethane N.D. 0.20 ppb(v)
Hexane N.D. 0.20 ppb(v) 105 106 63-117 1 25
2-Hexanone N.D. 0.50 ppb(v) 94 109 47-150 15 25
Isooctane N.D. 0.20 ppb(v)
Methyl t-Butyl Ether N.D. 0.20 ppb(v) 115 121 52-129 5 25
4-Methyl-2-Pentanone N.D. 0.50 ppb(v) 108 121 53-140 11 25
Methylene Chloride N.D. 0.20 ppb(v) 109 109 70-130 1 25
Octane N.D. 0.20 ppb(v)
Pentane N.D. 0.20 ppb(v)
Styrene N.D. 0.20 ppb(v) 111 121 64-130 9 25
1,1,1,2-Tetrachloroethane N.D. 0.20 ppb(v)
1,1,2,2-Tetrachloroethane N.D. 0.20 ppb(v) 100 112 58-133 12 25
Tetrachloroethene N.D. 0.20 ppb(v) 88 94 70-130 7 25
Toluene N.D. 0.20 ppb(v) 107 112 70-130 5 25
1,1,1-Trichloroethane N.D. 0.20 ppb(v) 101 103 70-130 2 25
1,1,2-Trichloroethane N.D. 0.20 ppb(v) 100 106 59-131 6 25
Trichloroethene N.D. 0.20 ppb(v) 100 103 70-130 3 25
Trichlorofluoromethane N.D. 0.20 ppb(v) 104 105 70-130 1 25
1,2,3-Trichloropropane N.D. 0.20 ppb(v)
1,2,4-Trimethylbenzene N.D. 0.20 ppb(v) 97 109 60-128 13 25
1,3,5-Trimethylbenzene N.D. 0.20 ppb(v) 105 118 61-132 12 25
Vinyl Chloride N.D. 0.20 ppb(v) 112 116 70-130 3 25
m/p-Xylene N.D. 0.20 ppb(v) 103 112 70-130 8 25
o-Xylene N.D. 0.20 ppb(v) 109 118 70-130 8 25

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Explanation of Symbols and Abbreviations

3768 0713
The following defines common symbols and abbreviations used in reporting technical data: RL Reporting Limit BMQL Below Minimum Quantitation Level N.D. none detected MPN Most Probable Number TNTC Too Numerous To Count CP Units cobalt-chloroplatinate units IU International Units NTU nephelometric turbidity units umhos/cm micromhos/cm ng nanogram(s) C degrees Celsius F degrees Fahrenheit meq milliequivalents lb. pound(s) g gram(s) kg kilogram(s) µg microgram(s) mg milligram(s) mL milliliter(s) L liter(s) m3 cubic meter(s) µL microliter(s) pg/L picogram/liter
< less than - The number following the sign is the limit of quantitation, the smallest amount of analyte which can be reliably determined using this specific test. > greater than ppm parts per million - One ppm is equivalent to one milligram per kilogram (mg/kg), or one gram per million grams. For aqueous liquids, ppm is usually taken to be equivalent to milligrams per liter (mg/l), because one liter of water has a weight very close to a kilogram. For gases or vapors, one ppm is equivalent to one microliter per liter of gas. ppb parts per billion Dry weight Results printed under this heading have been adjusted for moisture content. This increases the analyte weight basis concentration to approximate the value present in a similar sample without moisture. All other results are reported on an as-received basis.
Data Qualifiers:
C – result confirmed by reanalysis.
J - estimated value – The result is ≥ the Method Detection Limit (MDL) and < the Limit of Quantitation (LOQ).
U.S. EPA CLP Data Qualifiers:
Organic Qualifiers Inorganic Qualifiers A TIC is a possible aldol-condensation product B Value is <CRDL, but ≥IDL B Analyte was also detected in the blank E Estimated due to interference C Pesticide result confirmed by GC/MS M Duplicate injection precision not met D Compound quantitated on a diluted sample N Spike sample not within control limits E Concentration exceeds the calibration range of S Method of standard additions (MSA) used the instrument for calculation N Presumptive evidence of a compound (TICs only) U Compound was not detected P Concentration difference between primary and W Post digestion spike out of control limits confirmation columns >25% * Duplicate analysis not within control limits U Compound was not detected + Correlation coefficient for MSA <0.995 X,Y,Z Defined in case narrative
Analytical test results meet all requirements of NELAC unless otherwise noted under the individual analysis.
Measurement uncertainty values, as applicable, are available upon request.
Tests results relate only to the sample tested. Clients should be aware that a critical step in a chemical or microbiological analysis is the collection of the sample. Unless the sample analyzed is truly representative of the bulk of material involved, the test results will be meaningless. If you have questions regarding the proper techniques of collecting samples, please contact us. We cannot be held responsible for sample integrity, however, unless sampling has been performed by a member of our staff. This report shall not be reproduced except in full, without the written approval of the laboratory. Times are local to the area of activity. Parameters listed in the 40 CFR part 136 Table II as “analyze immediately” are not performed within 15 minutes.
WARRANTY AND LIMITS OF LIABILITY - In accepting analytical work, we warrant the accuracy of test results for the sample as submitted. THE FOREGOING EXPRESS WARRANTY IS EXCLUSIVE AND IS GIVEN IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED OR IMPLIED. WE DISCLAIM ANY OTHER WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING A WARRANTY OF FITNESS FOR PARTICULAR PURPOSE AND WARRANTY OF MERCHANTABILITY. IN NO EVENT SHALL EUROFINS LANCASTER LABORATORIES ENVIRONMENTAL, LLC BE LIABLE FOR INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL DAMAGES INCLUDING, BUT NOT LIMITED TO, DAMAGES FOR LOSS OF PROFIT OR GOODWILL REGARDLESS OF (A) THE NEGLIGENCE (EITHER SOLE OR CONCURRENT) OF EUROFINS LANCASTER LABORATORIES ENVIRONMENTAL AND (B) WHETHER EUROFINS LANCASTER LABORATORIES ENVIRONMENTAL HAS BEEN INFORMED OF THE POSSIBILITY OF SUCH DAMAGES. We accept no legal responsibility for the purposes for which the client uses the test results. No purchase order or other order for work shall be accepted by Eurofins Lancaster Laboratories Environmental which includes any conditions that vary from the Standard Terms and Conditions, and Eurofins Lancaster Laboratories Environmental hereby objects to any conflicting terms contained in any acceptance or order submitted by client.
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