20086_Chadbourn_Mill_LSI_Report_20160907

LIMITED SITE
INVESTIGATION REPORT
Chadbourn Mill
451 Jordan Place
Charlotte, Mecklenburg County, NC
September 7, 2016
Terracon Project No. 71167330
Prepared for:
White Point Paces Chadbourn, LLC
Charlotte, North Carolina
Prepared by:
Terracon Consultants, Inc.
Charlotte, North Carolina
TABLE OF CONTENTS
ii
1.0 SITE DESCRIPTION ....................................................................................................... 1
2.0 SCOPE OF SERVICES ................................................................................................... 1
2.1 Standard of Care.................................................................................................. 2
2.2 Additional Scope Limitations ................................................................................ 2
2.3 Reliance ............................................................................................................... 2
3.0 FIELD INVESTIGATION METHODS ............................................................................... 3
3.1 Soil Vapor Sample Point Installation .................................................................... 3
3.2 Soil Vapor Sample Collection ............................................................................... 3
4.0 SOIL VAPOR SAMPLE RESULTS ................................................................................. 4
5.0 CONCLUSIONS AND RECOMMENDATIONS ............................................................... 5
Tables
Table 1 – Soil Vapor Sample Results
Table 2 – Summary of Soil Gas to Indoor Air Risk Calculations
Figures
Figure 1 – Site Layout and Sample Location Map
Appendices
APPENDIX A – FIELD FORMS
Sub-Slab Soil Vapor Sample Record
APPENDIX B – VAPOR INTRUSION RISK CALCULATORS
NC Brownfields Program Vapor Intrusion Risk Calculators
APPENDIX C – ANALYTICAL REPORTS AND CHAINS OF CUSTODY
Soil Vapor Sample Analytical Reports – Eurofins AirToxics
Responsive ■Resourceful ■Reliable 1
CHADBOURN MILL
451 JORDAN PLACE
CHARLOTTE, MECKLENBURG COUNTY, NC
Terracon Project No. 71167330
September 7, 2016
1.0 SITE DESCRIPTION
The site is located at 451 Jordan Place in Charlotte, North Carolina and is occupied by vacant
warehouse buildings formerly part of Chadbourn Mill. Remaining portions of the site include
asphalt-paved and gravel covered parking areas and access drives located on a 5.065-acre
parcel of land. Mecklenburg County GIS identifies the site as parcel 08306707. It is our
understanding that White Point Paces Chadbourn, LLC will only be acquiring the western portion
of the parcel.
Based on Terracon’s findings during a 2016 Phase 1 Environmental Site Assessment (ESA) of
the site, the former mill operations including a dye house were identified as Recognized
Environmental Conditions (RECs).
A topographic map showing the site location is included as Figure 1. The site’s current layout is
shown on Figure 1. The nearest surface water feature is Little Sugar Creek, located
approximately 500 feet to the west of the site. Based upon topographic map interpretation, the
groundwater flow direction at the site appears to be to the northwest.
The 2016 Phase I Environmental Site Assessment (ESA) completed by Terracon identified a
former mill, including a dye house and a boiler room that were operating at the site from the early
1930s until the mid-1950s. The dye house, though part of the former mill, is located on adjacent
off-site portions of the property in the presumed up-gradient direction of the site. Terracon
performed the soil vapor assessment activities described in this report to identify potential vapor
intrusion concerns at the site.
2.0 SCOPE OF SERVICES
The Limited Site Investigation (LSI) was performed in general accordance with Terracon’s
Proposal No. P71167420. The scope of services included:
Limited Site Investigation
Chadbourn Mill ■ Charlotte, NC
September 7, 2016 ■ Terracon Project No. 71167330
Responsive ■Resourceful ■Reliable 2
Task 1 – Soil Vapor Sampling
Soil vapor samples were collected beneath the existing buildings that will remain at the site and
are anticipated to be occupied following redevelopment. Three soil vapor samples were collected
in the following areas of the site (Figure 1).
§Sample SV-01 located inside the former boiler room
§Samples SV-02 and SV-03 located inside the main building of the former mill
This investigation was authorized by Mr. Jay Levell in order to advise White Point Paces
Chadbourn, LLC regarding the property’s environmental condition and the potential need to
implement vapor mitigation measures during future development at the site.
2.1 Standard of Care
Terracon’s services were performed in a manner consistent with generally accepted practices of
the profession undertaken in similar studies in the same geographical area during the same time.
Terracon makes no warranties, either expressed or implied, regarding the findings, conclusions,
or recommendations. Please note that Terracon does not warrant the work of laboratories,
regulatory agencies, or other third parties supplying information used in the preparation of the
report. The services were performed in accordance with the scope of work authorized by our
client, as reflected in our proposal and were not conducted in accordance with ASTM E1903-11.
2.2 Additional Scope Limitations
Findings, conclusions, and recommendations resulting from these services are based upon
information derived from the on-site activities and other services performed under this scope of
work; such information is subject to change over time. Certain indicators of the presence of
hazardous substances, petroleum products, or other constituents may have been latent,
inaccessible, unobservable, non-detectable, or not present during these services; thus, we cannot
represent that the site is free of hazardous substances, toxic materials, petroleum products, or
other latent conditions beyond those identified during this investigation. Subsurface conditions
may vary from those encountered at specific borings or wells or during other surveys, tests,
assessments, investigations, or exploratory services. The data, interpretations, findings, and our
recommendations are based solely upon data obtained at the time and within the scope of these
services.
2.3 Reliance
This report has been prepared for the exclusive use of White Point Paces Chadbourn, LLC. Any
authorization for use or reliance by another party (except a governmental entity having jurisdiction
over the site) is prohibited without the expressed written authorization of White Point Paces
Limited Site Investigation
Chadbourn Mill ■ Charlotte, NC
September 7, 2016 ■ Terracon Project No. 71167330
Responsive ■Resourceful ■Reliable 3
Chadbourn, LLC and Terracon. Any unauthorized distribution or reuse is at White Point Paces
Chadbourn, LLC’s sole risk. Reliance by authorized parties will be subject to the terms and
conditions expressed in Terracon Proposal No. P71167420 dated August 4, 2016 and the report.
The limitation of liability defined in the terms and conditions is the aggregate limit of Terracon’s
liability to White Point Paces Chadbourn, LLC and all relying parties unless otherwise agreed in
writing.
3.0 FIELD INVESTIGATION METHODS
Terracon conducted the field work under a health and safety plan developed for this project. Work
was performed using United States Environmental Protection Agency (USEPA) Level D work
attire consisting of hard hats, safety glasses, protective gloves, and protective boots. Prior to
intrusive activities, Terracon submitted a locate request to the public utility locator [NC 811] to
arrange for location of underground public utilities. Terracon also contracted Probe Utility Locating
of Concord, NC to locate and mark private utility lines underneath or within the concrete slab in
the vicinity of the borings. No underground utilities were identified in the investigation areas.
3.1 Soil Vapor Sample Point Installation
Technical approaches and methods outlined in this report are in general accordance with the
Interstate Technical and Regulatory Council’s Vapor Intrusion: A Practical Guideline (2007) and
Vapor Intrusion Pathway: Investigative Approaches for Typical Scenarios (2007), as well as the
NCDEQ Division of Waste Management Vapor Intrusion Guidance (2014).
On August 10, 2016, three temporary sub-slab soil vapor (SV) sampling points were installed at
the facility, two in the warehouse area and one in the former boiler room in a separate building
(Figure 1). Each temporary SV sampling point was installed by drilling a 5/8-inch diameter hole
through the floor slab to a depth of approximately 2 to 3 inches into the underlying soils. The
concrete floor slab at sample point SV-01 was approximately 12 inches thick, while the thickness
of the slab was about 16 inches at sample points SV-02 and SV-03. The existence of a moisture
barrier beneath the building slab could not be verified by Terracon. The SV sampling points were
completed with a Vapor Pin™ assembly consisting of a brass barb fitting with a silicone sleeve to
seal the 5/8-inch diameter hole. A silicone cap was placed over the vapor pins to keep them
sealed and the sample points were allowed to equilibrate for at least three hours prior to sampling.
3.2 Soil Vapor Sample Collection
Terracon also performed the soil vapor sampling activities on August 10, 2016 after allowing
sufficient time for the SV points to equilibrate. In order to test the integrity of the sampling point
seal, both a shut-in test and a helium tracer test were conducted at each sample point. A MGD-
2000 helium detector was used to verify the presence and concentration of tracer gas.
Limited Site Investigation
Chadbourn Mill ■ Charlotte, NC
September 7, 2016 ■ Terracon Project No. 71167330
Responsive ■Resourceful ■Reliable 4
The protocol for using a tracer gas is to enclose the sample manifold, tubing and ground interface
with a shroud and enrich the shroud atmosphere with helium. Prior to sample collection, at least
three volumes of the vapor point annulus and attached Teflon® lined tubing and sample train were
purged using a vacuum canister. Purge samples were then screened for helium to assess the
presence of leaks in the well seal and fittings and with a photo-ionization detector (PID) to assess
for the presence of VOCs. Sample collection was started if the tracer testing indicated the helium
concentration in the vapor point was less than 10 percent of the helium concentration in the
shroud, indicating an appropriately sealed vapor point annulus.
Samples were collected within 1.0-liter Summa® canisters equipped with 170 ml/min flow
controllers for analysis of VOCs per EPA Method TO-15. In addition to the tracer test performed
in the field, one sample (SV-03) was analyzed for helium by Method ASTM-1946 to quantify
leakage. The vacuum pressure of the sample canisters as well as the helium concentration inside
the shroud was monitored and recorded at regular intervals throughout the sampling period. The
soil vapor sample collection record is included in Appendix A. After completion of soil vapor
sampling activities, the vapor sample points were abandoned by removal of the vapor pin and
silicone sleeve and filling the borehole with neat cement grout to the slab surface.
Following completion of the field activities, the Summa canisters (3 samples), along with chain-
of-custody documentation, were shipped to Eurofins AirToxics in Folsom, California for laboratory
analysis of VOCs by United States Environmental Protection Agency (EPA) Method TO-15 and
ASTM-1946 (1 sample only).
4.0 SOIL VAPOR SAMPLE RESULTS
The laboratory analytical report and chain-of-custody records are attached in Appendix C. The
following paragraphs describe the field and laboratory test results.
Leaks were detected in the sample manifolds during the initial dead-head or shut-in tests of two
canisters. These canisters were replaced prior to sampling and after re-tightening of the fittings,
the dead-head tests were repeated. After purging, the purge tubing was screened for helium and
VOCs using a helium detector and a PID, respectively. Immediately after purging, helium was
detected inside the sample manifold for SV-02 at 850 ppm. Helium was not detected in the sample
manifolds for SV-01 and SV-03 during the leak test. These helium concentrations are below the
10% leak threshold specified in the NCDEQ Vapor Intrusion Guidance (2014), indicating that
leakage did not pose a problem for sample collection.
To obtain a more reliable leak quantification, sample SV-02, the only sample where helium was
detected during the leak test, was selected for helium analysis by the analytical laboratory. Based
on the laboratory analytical result for sample SV-02, helium was not detected in the sample
(<0.13%), suggesting no significant leaks were present in the sample assembly. A hypothetical
worst-case scenario concentration of 0.13% helium in sample SV-02 would correspond to a 1.3%
Limited Site Investigation
Chadbourn Mill ■ Charlotte, NC
September 7, 2016 ■ Terracon Project No. 71167330
Responsive ■Resourceful ■Reliable 5
leak, considering a time-weighted average helium concentration of 9.8% inside the sampling
shroud during sampling. A 1.3% leak would be well below the 10% leak threshold specified in the
NCDEQ Vapor Intrusion Guidance (2014); therefore, the QA/QC helium sample supports the
integrity of the soil vapor sample results.
Laboratory analytical results for the soil vapor samples were compared to the NCDEQ Health-
Based Soil Gas Screening Levels (SGSLs) for residential and non-residential exposure scenarios,
updated March 2016. Soil vapor sample results are summarized on Table 1 and the laboratory
analytical report is included in Appendix C. A summary of SV results is provided below:
§Two SV samples (SV-02, and SV-03, collected in the main mill warehouse area) did not
contain VOCs above residential or non-residential SGSLs.
§One SV sample (SV-01, collected in the boiler room) contained VOCs above residential
and non-residential SGSLs. Specifically, cis-1,2-dichloroethene was detected at 120
µg/m3 above its Residential SGSL of 36 µg/m3 but below its Non-Residential SGSL of 472
µg/m3. Trichloroethene was detected at 9,100 µg/m3, exceeding both its Residential and
Non-Residential SGSL (14 and 175 µg/m3, respectively).
§Several VOCs were detected in at least one SV sample at concentrations above laboratory
reporting limits, but below their respective SGSLs. These VOCs include: ethanol, acetone,
chloroform, Freon 11, 2-propanol, 2-butanone (methyl ethyl ketone), toluene,
tetrachloroethene, ethyl benzene, m,p-xylene, o-xylene, styrene, 4-ethyltoluene, 1,2,4-
trimethylbenzene, 1,4-dichlorobenzene, benzene and 1,3,5-trimethylbenzene.
In addition to the SGSLs, Terracon also completed a NC Brownfields Vapor Intrusion (VI) Sub-
Slab Soil Gas Concentration to Indoor Air Calculator for each of the three samples. Calculations
were conducted for both a residential and a non-residential exposure scenario. The risk calculator
summary sheets are included as Appendix B. VOC concentrations in sample SV-01 exceeded
the acceptable threshold limits for VI hazard under a non-residential exposure scenario and both
the VI hazard and VI carcinogenic risk under a residential exposure scenario. Samples SV-02
and SV-03 had acceptable VI hazard and VI carcinogenic risk quotients for non-residential and
residential exposure scenarios.
5.0 CONCLUSIONS AND RECOMMENDATIONS
Based on the scope of services described in this report and subject to the limitations described
herein, Terracon provides the following conclusions.
§The two soil vapor samples collected in the warehouse area (SV-02 and SV-03) did not
contain VOCs above residential or non-residential SGSLs.
Limited Site Investigation
Chadbourn Mill ■ Charlotte, NC
September 7, 2016 ■ Terracon Project No. 71167330
Responsive ■Resourceful ■Reliable 6
§Terracon staff observed a moderately thick (approximately 12-inches) slab in the boiler
room and an approximate 16-inch thick slab in the warehouse area. Both slabs appeared
to be in relatively good condition and free of cracks or damage.
§The soil vapor sample collected in the boiler room (SV-01) contained VOC constituents at
levels above residential or non-residential SGSLs.
§VOC concentrations detected in sample SV-01 exceed the acceptable threshold level for
vapor intrusion under non-residential and residential exposure scenarios using the NC
Brownfields Vapor Intrusion Risk Calculator.
§Current redevelopment plans for the site include the renovation of the boiler room for non-
residential/commercial purposes. Based on the exceedances of vapor intrusion risks and
SGSLs, additional evaluation of vapor intrusion is recommended for the former boiler
room.
§Historical site activities do not suggest the use of trichloroethene in the boiler room. It is
possible that the presence of trichloroethene is due to off-gassing from trichloroethene-
impacted groundwater migrating onto the site from an up-gradient source or due to nearby
soil impacts. Terracon recommends additional assessment to determine the source of
VOC concentrations in soil gas.
§Although there were no exceedances of residential SGSLs or the VI risk thresholds in the
main mill warehouse, VOC concentrations are significant enough to warrant additional
investigation to evaluate potential sources of the VOCs.
Table 1
Soil Vapor Sample Results
Chadbourn Mill
451 Jordan Place
Charlotte, Mecklenburg County, NC
Terracon Project No. 71167330
Sample ID:
Sample Date:
Type:
SGSL SGSL Location:
Volatile Organic Compounds (EPA Method TO-15)
Acetone 216,000 2,720,000
Benzene 120 15,730
2-Butanone 34,800 438,000
Chloroform 40.7 533
cis-1,2-Dichloroethene 36 472
1,4-Dichlorobenzene 85.1 1,110
Ethanol NS NS
Ethyl Benzene 374 4,910
4-Ethyltoluene NS NS
Freon 11 NS NS
2-Propanol 1,390 17,500
Styrene 6,950 87,600
Tetrachloroethene 278 3,500
Trichloroethene 14 175
1,2,4-Trimethylbenzene 48.7 613
1,3,5-Trimethylbenzene NS NS
Toluene 34,800 438,000
m,p-Xylene 695 8,760
o-Xylene 695 8,760
Helium NS NS
Notes:
Concentrations are reported in micrograms per cubic meter (μg/m3) unless otherwise noted DWM - North Carolina Department of Environmental Quality, Division of Waste Management
Detected concentrations are shown in bold.SGSL - DWM Sub-slab and Exterior Soil Gas Screening Level, updated March 2016
NA - not analyzed Concentrations highlighted in yellow exceed their respective residential SGSL.
NS - no standard Concentrations highlighted in orange exceed their respective non-residential SGSL.
<22
NA <0.13 NA
6.7
Other Compounds (QA/QC)
8.4
70
58
7.4
<7.6
8.8
38
<7.3
18
49
16
19
<25
<19
<22
26
58
<6.6
<5.4
220
177.6
120
<6.4
26
<7
<4.2
39<60
29
9,100
<25
460
<6.3
<5.2
27
30
66
65
97
7.2
16
32
120
<31
370
56
<22
490
<16
<25
<29
<50
<22
45
Residential
Screening Levels
Non-Residential
Screening LevelsAnalyte
SV-01
08/10/16 08/10/16 08/10/16
SV-02 SV-03
Boiler Room, SE Wall Warehouse, NW Wall Warehouse, SE Wall
Sub-Slab Sub-Slab Sub-Slab
Table 2
Summary of Soil Gas to Indoor Air Risk Calculations
Chadbourn Mill Site
451 Jordan Place
Charlotte, Mecklenburg Couny, NC
Terracon Project No. 71167330
VI Carcinogenic Risk
(dimensionless)
VI Hazard Quotient
(dimensionless)
VI Carcinogenic Risk
(dimensionless)
VI Hazard Quotient
(dimensionless)
SV-01 08/10/16 5.78E-04 1.31E+02 3.10E-05 1.04E+01
SV-02 08/10/16 8.02E-06 1.67E-01 6.12E-07 1.33E-02
SV-03 08/10/16 1.06E-05 2.60E-01 8.12E-07 2.07E-02
1.00E-04 1.00E+00 1.00E-04 1.00E+00
Notes:
Calculated risks are cumulative for all detected constituents per sample point.
The NC Brownfields Soil Gas to Indoor Air Concentration Risk Calculator, January 2016 version, was used for the risk calculations.
A target risk of 1.0E-5 was specified for carcinogens and a target hazard quotient for non-carcinogens of 0.2.
Calculated Risks/Hazard Quotients highlighted in red exceed their respective acceptable threshold value.
SAMPLE ID SAMPLE DATE
Residential Exposure Scenario Non-Residential Exposure Scenario
Threshold Risk/Hazard Quotient:
CHADBOURN
SITE LAYOUT AND SAMPLE LOCATIONS
CHADBOURN MILL
451 Jordan Place
Charlotte, Mecklenburg County, NC
2020-E Starita Road
Charlotte, NC
71167330
AFB
CZ
CLC
NOT TO SCALE
AUGUST 2016
Scale:
1
FigureProject Manager:
Drawn by:
Checked by:
Approved by:
Project No.
File Name:
Date:
CLC
CHARLOTTE
FENCING
ACADEMYRHINO
MARKET &
DELI
SGI-USA BUDDHIST CENTER
AMERICAN
BURGER
CO.
PICANTE
MEXICAN
GRILL UPTOWN
CYCLES
RESIDENTIAL
RESIDENTIAL
D
D
ABANDONED
UST
RAIL GREASE
STORAGE
WORKSHOP &
STORAGE
OFFICES
PARTS
SUPPLY
GRAVEL
PARKING
NODA STORAGE
ELECTRICAL SUBSTATION
OPEN PARCEL
KELLY TIRE
SALES
NEESE’S
COUNTRY
SAUSAGE
Approximate Site Boundary
SV-01
SV-03
SV-02
FORMER BOILER ROOM
FORMER
MILL AREA
DYE HOUSE
APPENDIX A – FIELD FORMS
APPENDIX B – VAPOR INTRUSION RISK CALCULATORS
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Residential
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
67-64-1 Acetone 4.9E+02 1.47E+01 No IUR 4.5E-04 2.16E+05 3.10E+01 A
67-66-3 Chloroform 2.9E+01 8.70E-01 7.1E-06 8.5E-03 4.07E+01 2.30E-05 I 9.80E-02 A
127-18-4 Tetrachloroethylene 4.5E+01 1.35E+00 1.3E-07 3.2E-02 2.78E+02 2.60E-07 I 4.00E-02 I
79-01-6 Trichloroethylene 9.1E+03 2.73E+02 5.7E-04 1.3E+02 1.39E+01 see note I 2.00E-03 I TCE
Risk/Cumulative HQ 5.8E-04 1.31E+02
Risk/Cumulative HQ
(1)Inhalation Pathway Exposure Parameters (RME):
Exposure Scenario Units Symbol Value Symbol Value Symbol Value
Averaging time for carcinogens (yrs)ATc_R_SG 70 ATc_C_SG 70 ATc_SG 70
Averaging time for non-carcinogens (yrs)ATnc_R_SG 26 ATnc_C_SG 25 ATnc_SG 26
Exposure duration (yrs)ED_R_SG 26 ED_C_SG 25 ED_SG 26
Exposure frequency (days/yr)EF_R_SG 350 EF_C_SG 250 EF_SG 350
Exposure time (hr/day)ET_R_SG 24 ET_C_SG 8 ET_SG 24
(2)Generic Attenuation Factors:
Source Medium of Vapors .Symbol Value Symbol Value Symbol Value
Groundwater ( - )AFgw_R_SG 0.001 AFgw_C_SG 0.001 AFgw_SG 0.001
Sub-Slab and Exterior Soil Gas ( - )AFss_R_SG 0.03 AFss_C_SG 0.01 AFss_SG 0.03
(3)Formulas .
Cia, target = MIN( Cia,c; Cia,nc).
Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)
Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol Value
mIURTCE_R_SG 1.00E-06 mIURTCE_C_SG 0.00E+00 mIURTCE_SG 1.00E-06
IURTCE_R_SG 3.10E-06 IURTCE_C_SG 4.10E-06 IURTCE_SG 3.10E-06
.
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
.
0 - 2 years 2
2 - 6 years 4
.6 - 16 years 10
16 - 26 years 10
.
Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
.
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
Notation:.
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.html
P = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtml
A = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.html
CA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.asp
H = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at:http://epa-heast.ornl.gov/heast.shtmlS = See RSL User Guide, Section 5
Selected (based on
scenario)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
1
72
Residential Commercial
Residential Commercial
Age-dependent adjustment
factor
10
3
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-01 Residential
3
Selected (based on
scenario)
Selected (based on
scenario)
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
Residential Commercial
If cumulative risk >1.0E-04 or cumulative HQ>1.0
Unacceptable
VISL Calculator Version 3.4.5, November 2015 RSLs Page 1 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Residential
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)iCRHQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-01 Residential
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
X = PPRTV Appendix
Mut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).
VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).
TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).
Yellow highlighting indicates site-specific parameters that may be edited by the user.Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed.
Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
VISL Calculator Version 3.4.5, November 2015 RSLs Page 2 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Commercial
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
67-64-1 Acetone 4.9E+02 4.90E+00 No IUR 3.6E-05 2.72E+06 3.10E+01 A
67-66-3 Chloroform 2.9E+01 2.90E-01 5.4E-07 6.8E-04 5.33E+02 2.30E-05 I 9.80E-02 A
127-18-4 Tetrachloroethylene 4.5E+01 4.50E-01 9.5E-09 2.6E-03 3.50E+03 2.60E-07 I 4.00E-02 I
79-01-6 Trichloroethylene 9.1E+03 9.10E+01 3.0E-05 1.0E+01 1.75E+02 see note I 2.00E-03 I TCE
Risk/Cumulative HQ 3.1E-05 1.04E+01
Risk/Cumulative HQ
(1)Inhalation Pathway Exposure Parameters (RME):
Exposure Scenario Units Symbol Value Symbol Value Symbol Value
Averaging time for carcinogens (yrs)ATc_R_SG 70 ATc_C_SG 70 ATc_SG 70
Averaging time for non-carcinogens (yrs)ATnc_R_SG 26 ATnc_C_SG 25 ATnc_SG 25
Exposure duration (yrs)ED_R_SG 26 ED_C_SG 25 ED_SG 25
Exposure frequency (days/yr)EF_R_SG 350 EF_C_SG 250 EF_SG 250
Exposure time (hr/day)ET_R_SG 24 ET_C_SG 8 ET_SG 8
(2)Generic Attenuation Factors:
Source Medium of Vapors .Symbol Value Symbol Value Symbol Value
Groundwater ( - )AFgw_R_SG 0.001 AFgw_C_SG 0.001 AFgw_SG 0.001
Sub-Slab and Exterior Soil Gas ( - )AFss_R_SG 0.03 AFss_C_SG 0.01 AFss_SG 0.01
(3)Formulas .
Cia, target = MIN( Cia,c; Cia,nc).
Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)
Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol Value
mIURTCE_R_SG 1.00E-06 mIURTCE_C_SG 0.00E+00 mIURTCE_SG 0.00E+00
IURTCE_R_SG 3.10E-06 IURTCE_C_SG 4.10E-06 IURTCE_SG 4.10E-06
.
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
.
0 - 2 years 2
2 - 6 years 4
.6 - 16 years 10
16 - 26 years 10
.
Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
.
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
Notation:.
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.html
P = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtml
A = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.html
CA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.asp
H = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at:http://epa-heast.ornl.gov/heast.shtmlS = See RSL User Guide, Section 5
Selected (based on
scenario)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
1
25
Residential Commercial
Residential Commercial
Age-dependent adjustment
factor
10
3
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-01 Commercial
3
Selected (based on
scenario)
Selected (based on
scenario)
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
Residential Commercial
If cumulative risk >1.0E-04 or cumulative HQ>1.0
Unacceptable
VISL Calculator Version 3.4.5, November 2015 RSLs Page 1 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Commercial
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)iCRHQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-01 Commercial
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
X = PPRTV Appendix
Mut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).
VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).
TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).
Yellow highlighting indicates site-specific parameters that may be edited by the user.Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed.
Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
VISL Calculator Version 3.4.5, November 2015 RSLs Page 2 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Residential
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
67-64-1 Acetone 4.6E+02 1.38E+01 No IUR 4.3E-04 2.16E+05 3.10E+01 A
106-46-7 Dichlorobenzene, 1,4-6.5E+01 1.95E+00 7.6E-06 2.3E-03 8.51E+01 1.10E-05 CA 8.00E-01 I
100-41-4 Ethylbenzene 7.2E+00 2.16E-01 1.9E-07 2.1E-04 3.74E+02 2.50E-06 CA 1.00E+00 I
67-63-0 Isopropanol 2.7E+01 8.10E-01 No IUR 3.9E-03 1.39E+03 2.00E-01 P
78-93-3 Methyl Ethyl Ketone (2-Butanone)3.9E+01 1.17E+00 No IUR 2.2E-04 3.48E+04 5.00E+00 I
100-42-5 Styrene 3.0E+01 9.00E-01 No IUR 8.6E-04 6.95E+03 1.00E+00 I
127-18-4 Tetrachloroethylene 6.6E+01 1.98E+00 1.8E-07 4.7E-02 2.78E+02 2.60E-07 I 4.00E-02 I
108-88-3 Toluene 1.2E+02 3.60E+00 No IUR 6.9E-04 3.48E+04 5.00E+00 I
95-63-6 Trimethylbenzene, 1,2,4-2.6E+01 7.80E-01 No IUR 1.1E-01 4.87E+01 7.00E-03 P
95-47-6 Xylene, o-6.7E+00 2.01E-01 No IUR 1.9E-03 6.95E+02 1.00E-01 S
106-42-3 Xylene, P-7.6E+00 2.28E-01 No IUR 2.2E-03 6.95E+02 1.00E-01 SRisk/Cumulative HQ 8.0E-06 1.67E-01
Risk/Cumulative HQ
(1)Inhalation Pathway Exposure Parameters (RME):
Exposure Scenario Units Symbol Value Symbol Value Symbol Value
Averaging time for carcinogens (yrs)ATc_R_SG 70 ATc_C_SG 70 ATc_SG 70
Averaging time for non-carcinogens (yrs)ATnc_R_SG 26 ATnc_C_SG 25 ATnc_SG 26
Exposure duration (yrs)ED_R_SG 26 ED_C_SG 25 ED_SG 26
Exposure frequency (days/yr)EF_R_SG 350 EF_C_SG 250 EF_SG 350
Exposure time (hr/day)ET_R_SG 24 ET_C_SG 8 ET_SG 24
(2)Generic Attenuation Factors:
Source Medium of Vapors .Symbol Value Symbol Value Symbol Value
Groundwater ( - )AFgw_R_SG 0.001 AFgw_C_SG 0.001 AFgw_SG 0.001
Sub-Slab and Exterior Soil Gas ( - )AFss_R_SG 0.03 AFss_C_SG 0.01 AFss_SG 0.03
(3)Formulas .
Cia, target = MIN( Cia,c; Cia,nc).
Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)
Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol Value
mIURTCE_R_SG 1.00E-06 mIURTCE_C_SG 0.00E+00 mIURTCE_SG 1.00E-06
IURTCE_R_SG 3.10E-06 IURTCE_C_SG 4.10E-06 IURTCE_SG 3.10E-06
.
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
.
0 - 2 years 2
2 - 6 years 4
.6 - 16 years 10
16 - 26 years 10.
Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
.
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-02 Residential
3
Selected (based on
scenario)
Selected (based on
scenario)
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
Residential Commercial
If cumulative risk >1.0E-04 or cumulative HQ>1.0
Unacceptable
1
72
Residential Commercial
Residential Commercial
Age-dependent adjustment
factor
10
3
Selected (based on
scenario)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
VISL Calculator Version 3.4.5, November 2015 RSLs Page 1 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Residential
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-02 Residential
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
Notation:.
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.html
P = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtml
A = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.html
CA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.asp
H = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at:http://epa-heast.ornl.gov/heast.shtml
S = See RSL User Guide, Section 5
X = PPRTV Appendix
Mut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).
VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).
TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).
Yellow highlighting indicates site-specific parameters that may be edited by the user.
Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed.
Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
VISL Calculator Version 3.4.5, November 2015 RSLs Page 2 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Commercial
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
67-64-1 Acetone 4.6E+02 4.60E+00 No IUR 3.4E-05 2.72E+06 3.10E+01 A
106-46-7 Dichlorobenzene, 1,4-6.5E+01 6.50E-01 5.8E-07 1.9E-04 1.11E+03 1.10E-05 CA 8.00E-01 I
100-41-4 Ethylbenzene 7.2E+00 7.20E-02 1.5E-08 1.6E-05 4.91E+03 2.50E-06 CA 1.00E+00 I
67-63-0 Isopropanol 2.7E+01 2.70E-01 No IUR 3.1E-04 1.75E+04 2.00E-01 P
78-93-3 Methyl Ethyl Ketone (2-Butanone)3.9E+01 3.90E-01 No IUR 1.8E-05 4.38E+05 5.00E+00 I
100-42-5 Styrene 3.0E+01 3.00E-01 No IUR 6.8E-05 8.76E+04 1.00E+00 I
127-18-4 Tetrachloroethylene 6.6E+01 6.60E-01 1.4E-08 3.8E-03 3.50E+03 2.60E-07 I 4.00E-02 I
108-88-3 Toluene 1.2E+02 1.20E+00 No IUR 5.5E-05 4.38E+05 5.00E+00 I
95-63-6 Trimethylbenzene, 1,2,4-2.6E+01 2.60E-01 No IUR 8.5E-03 6.13E+02 7.00E-03 P
95-47-6 Xylene, o-6.7E+00 6.70E-02 No IUR 1.5E-04 8.76E+03 1.00E-01 S
106-42-3 Xylene, P-7.6E+00 7.60E-02 No IUR 1.7E-04 8.76E+03 1.00E-01 SRisk/Cumulative HQ 6.1E-07 1.33E-02
Risk/Cumulative HQ
(1)Inhalation Pathway Exposure Parameters (RME):
Exposure Scenario Units Symbol Value Symbol Value Symbol Value
Averaging time for carcinogens (yrs)ATc_R_SG 70 ATc_C_SG 70 ATc_SG 70
Averaging time for non-carcinogens (yrs)ATnc_R_SG 26 ATnc_C_SG 25 ATnc_SG 25
Exposure duration (yrs)ED_R_SG 26 ED_C_SG 25 ED_SG 25
Exposure frequency (days/yr)EF_R_SG 350 EF_C_SG 250 EF_SG 250
Exposure time (hr/day)ET_R_SG 24 ET_C_SG 8 ET_SG 8
(2)Generic Attenuation Factors:
Source Medium of Vapors .Symbol Value Symbol Value Symbol Value
Groundwater ( - )AFgw_R_SG 0.001 AFgw_C_SG 0.001 AFgw_SG 0.001
Sub-Slab and Exterior Soil Gas ( - )AFss_R_SG 0.03 AFss_C_SG 0.01 AFss_SG 0.01
(3)Formulas .
Cia, target = MIN( Cia,c; Cia,nc).
Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)
Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol Value
mIURTCE_R_SG 1.00E-06 mIURTCE_C_SG 0.00E+00 mIURTCE_SG 0.00E+00
IURTCE_R_SG 3.10E-06 IURTCE_C_SG 4.10E-06 IURTCE_SG 4.10E-06
.
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
.
0 - 2 years 2
2 - 6 years 4
.6 - 16 years 10
16 - 26 years 10.
Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
.
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-02 Commercial
3
Selected (based on
scenario)
Selected (based on
scenario)
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
Residential Commercial
If cumulative risk >1.0E-04 or cumulative HQ>1.0
Unacceptable
1
25
Residential Commercial
Residential Commercial
Age-dependent adjustment
factor
10
3
Selected (based on
scenario)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
VISL Calculator Version 3.4.5, November 2015 RSLs Page 1 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Commercial
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-02 Commercial
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
Notation:.
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.html
P = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtml
A = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.html
CA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.asp
H = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at:http://epa-heast.ornl.gov/heast.shtml
S = See RSL User Guide, Section 5
X = PPRTV Appendix
Mut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).
VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).
TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).
Yellow highlighting indicates site-specific parameters that may be edited by the user.
Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed.
Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
VISL Calculator Version 3.4.5, November 2015 RSLs Page 2 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Residential
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
67-64-1 Acetone 3.7E+02 1.11E+01 No IUR 3.4E-04 2.16E+05 3.10E+01 A
71-43-2 Benzene 2.6E+01 7.80E-01 2.2E-06 2.5E-02 1.20E+02 7.80E-06 I 3.00E-02 I
106-46-7 Dichlorobenzene, 1,4-7.0E+01 2.10E+00 8.2E-06 2.5E-03 8.51E+01 1.10E-05 CA 8.00E-01 I
100-41-4 Ethylbenzene 7.4E+00 2.22E-01 2.0E-07 2.1E-04 3.74E+02 2.50E-06 CA 1.00E+00 I
67-63-0 Isopropanol 1.6E+01 4.80E-01 No IUR 2.3E-03 1.39E+03 2.00E-01 P
78-93-3 Methyl Ethyl Ketone (2-Butanone)5.8E+01 1.74E+00 No IUR 3.3E-04 3.48E+04 5.00E+00 I
100-42-5 Styrene 4.9E+01 1.47E+00 No IUR 1.4E-03 6.95E+03 1.00E+00 I
127-18-4 Tetrachloroethylene 1.8E+01 5.40E-01 5.0E-08 1.3E-02 2.78E+02 2.60E-07 I 4.00E-02 I
108-88-3 Toluene 2.2E+02 6.60E+00 No IUR 1.3E-03 3.48E+04 5.00E+00 I
526-73-8 Trimethylbenzene, 1,2,3-8.8E+00 2.64E-01 No IUR 5.1E-02 3.48E+01 5.00E-03 P
95-63-6 Trimethylbenzene, 1,2,4-3.8E+01 1.14E+00 No IUR 1.6E-01 4.87E+01 7.00E-03 P
108-38-3 Xylene, m-1.7E+01 5.10E-01 No IUR 4.9E-03 6.95E+02 1.00E-01 S
95-47-6 Xylene, o-8.4E+00 2.52E-01 No IUR 2.4E-03 6.95E+02 1.00E-01 S
Risk/Cumulative HQ 1.1E-05 2.60E-01
Risk/Cumulative HQ
(1)Inhalation Pathway Exposure Parameters (RME):
Exposure Scenario Units Symbol Value Symbol Value Symbol Value
Averaging time for carcinogens (yrs)ATc_R_SG 70 ATc_C_SG 70 ATc_SG 70
Averaging time for non-carcinogens (yrs)ATnc_R_SG 26 ATnc_C_SG 25 ATnc_SG 26
Exposure duration (yrs)ED_R_SG 26 ED_C_SG 25 ED_SG 26
Exposure frequency (days/yr)EF_R_SG 350 EF_C_SG 250 EF_SG 350
Exposure time (hr/day)ET_R_SG 24 ET_C_SG 8 ET_SG 24
(2)Generic Attenuation Factors:
Source Medium of Vapors .Symbol Value Symbol Value Symbol Value
Groundwater ( - )AFgw_R_SG 0.001 AFgw_C_SG 0.001 AFgw_SG 0.001
Sub-Slab and Exterior Soil Gas ( - )AFss_R_SG 0.03 AFss_C_SG 0.01 AFss_SG 0.03
(3)Formulas .
Cia, target = MIN( Cia,c; Cia,nc).
Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)
Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol Value
mIURTCE_R_SG 1.00E-06 mIURTCE_C_SG 0.00E+00 mIURTCE_SG 1.00E-06
IURTCE_R_SG 3.10E-06 IURTCE_C_SG 4.10E-06 IURTCE_SG 3.10E-06
.
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
.
0 - 2 years 2
2 - 6 years 4.6 - 16 years 10
16 - 26 years 10
.Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
.
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-03 Residential
3
Selected (based on
scenario)
Selected (based on
scenario)
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
Residential Commercial
If cumulative risk >1.0E-04 or cumulative HQ>1.0
Unacceptable
1
72
Residential Commercial
Residential Commercial
Age-dependent adjustment
factor
10
3
Selected (based on
scenario)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
VISL Calculator Version 3.4.5, November 2015 RSLs Page 1 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Residential
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-03 Residential
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
Notation:.
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.html
P = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtml
A = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.html
CA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.asp
H = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at:http://epa-heast.ornl.gov/heast.shtml
S = See RSL User Guide, Section 5
X = PPRTV Appendix
Mut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).
VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).
TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).
Yellow highlighting indicates site-specific parameters that may be edited by the user.
Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed.
Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
VISL Calculator Version 3.4.5, November 2015 RSLs Page 2 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Commercial
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
67-64-1 Acetone 3.7E+02 3.70E+00 No IUR 2.7E-05 2.72E+06 3.10E+01 A
71-43-2 Benzene 2.6E+01 2.60E-01 1.7E-07 2.0E-03 1.57E+03 7.80E-06 I 3.00E-02 I
106-46-7 Dichlorobenzene, 1,4-7.0E+01 7.00E-01 6.3E-07 2.0E-04 1.11E+03 1.10E-05 CA 8.00E-01 I
100-41-4 Ethylbenzene 7.4E+00 7.40E-02 1.5E-08 1.7E-05 4.91E+03 2.50E-06 CA 1.00E+00 I
67-63-0 Isopropanol 1.6E+01 1.60E-01 No IUR 1.8E-04 1.75E+04 2.00E-01 P
78-93-3 Methyl Ethyl Ketone (2-Butanone)5.8E+01 5.80E-01 No IUR 2.6E-05 4.38E+05 5.00E+00 I
100-42-5 Styrene 4.9E+01 4.90E-01 No IUR 1.1E-04 8.76E+04 1.00E+00 I
127-18-4 Tetrachloroethylene 1.8E+01 1.80E-01 3.8E-09 1.0E-03 3.50E+03 2.60E-07 I 4.00E-02 I
108-88-3 Toluene 2.2E+02 2.20E+00 No IUR 1.0E-04 4.38E+05 5.00E+00 I
526-73-8 Trimethylbenzene, 1,2,3-8.8E+00 8.80E-02 No IUR 4.0E-03 4.38E+02 5.00E-03 P
95-63-6 Trimethylbenzene, 1,2,4-3.8E+01 3.80E-01 No IUR 1.2E-02 6.13E+02 7.00E-03 P
108-38-3 Xylene, m-1.7E+01 1.70E-01 No IUR 3.9E-04 8.76E+03 1.00E-01 S
95-47-6 Xylene, o-8.4E+00 8.40E-02 No IUR 1.9E-04 8.76E+03 1.00E-01 S
Risk/Cumulative HQ 8.1E-07 2.07E-02
Risk/Cumulative HQ
(1)Inhalation Pathway Exposure Parameters (RME):
Exposure Scenario Units Symbol Value Symbol Value Symbol Value
Averaging time for carcinogens (yrs)ATc_R_SG 70 ATc_C_SG 70 ATc_SG 70
Averaging time for non-carcinogens (yrs)ATnc_R_SG 26 ATnc_C_SG 25 ATnc_SG 25
Exposure duration (yrs)ED_R_SG 26 ED_C_SG 25 ED_SG 25
Exposure frequency (days/yr)EF_R_SG 350 EF_C_SG 250 EF_SG 250
Exposure time (hr/day)ET_R_SG 24 ET_C_SG 8 ET_SG 8
(2)Generic Attenuation Factors:
Source Medium of Vapors .Symbol Value Symbol Value Symbol Value
Groundwater ( - )AFgw_R_SG 0.001 AFgw_C_SG 0.001 AFgw_SG 0.001
Sub-Slab and Exterior Soil Gas ( - )AFss_R_SG 0.03 AFss_C_SG 0.01 AFss_SG 0.01
(3)Formulas .
Cia, target = MIN( Cia,c; Cia,nc).
Cia,c (ug/m3) = TCR x ATc x (365 days/yr) x (24 hrs/day) / (ED x EF x ET x IUR)
Cia,nc (ug/m3) = THQ x ATnc x (365 days/yr) x (24 hrs/day) x RfC x (1000 ug/mg) / (ED x EF x ET)
(4)Special Case Chemicals
Trichloroethylene Symbol Value Symbol Value Symbol Value
mIURTCE_R_SG 1.00E-06 mIURTCE_C_SG 0.00E+00 mIURTCE_SG 0.00E+00
IURTCE_R_SG 3.10E-06 IURTCE_C_SG 4.10E-06 IURTCE_SG 4.10E-06
.
Mutagenic Chemicals The exposure durations and age-dependent adjustment factors for mutagenic-mode-of-action are listed in the table below:
.
0 - 2 years 2
2 - 6 years 4.6 - 16 years 10
16 - 26 years 10
.Mutagenic-mode-of-action (MMOA) adjustment factor This factor is used in the equations for mutagenic chemicals.
.
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-03 Commercial
3
Selected (based on
scenario)
Selected (based on
scenario)
Note: This section applies to trichloroethylene and other mutagenic
chemicals, but not to vinyl chloride.
Age Cohort Exposure
Duration
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
Residential Commercial
If cumulative risk >1.0E-04 or cumulative HQ>1.0
Unacceptable
1
25
Residential Commercial
Residential Commercial
Age-dependent adjustment
factor
10
3
Selected (based on
scenario)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
VISL Calculator Version 3.4.5, November 2015 RSLs Page 1 of 2
x
x Sub-slab or Exterior Soil Gas Concentration to Indoor Air Concentration (SGC-IAC) Calculator Version 3.45, November 2015 RSLs
x
x Parameter Symbol Value
x Exposure Scenario Scenario Commercial
x Target Risk for Carcinogens TCR_SG 1.00E-05
x Target Hazard Quotient for Non-Carcinogens THQ_SG 0.2
x
x
Site Sub-slab or
Exterior Soil Gas
Concentration
Calculated
Indoor Air
Concentration
VI
Carcinogenic
Risk
VI Hazard Inhalation Unit
Risk
Reference
Concentration
x Csg Cia IUR RfC
x CAS Chemical Name (ug/m3)(ug/m3)(ug/m3)-1 (mg/m3)i
IHSB -Brownfields Vapor Intrusion Calculator - Based on OSWER VAPOR INTRUSION ASSESSMENT Site: Chadbourn Mill City: Charlotte County: Mecklenburg
Sample set: SV-03 Commercial
Instructions
Select residential or commercial scenario from pull down list
Enter target risk for carcinogens (for comparison to the calculated VI carcinogenic risk in column F)
Enter target hazard quotient for non-carcinogens (for comparison to the calculated VI hazard in column G)
CR HQ
IUR
Source*
RFC
Source*
Mutagenic
Indicator
Soil Gas
Screening
Level (ug/m3)
Vinyl Chloride See the Navigation Guide equation for Cia,c for vinyl chloride.
Notation:.
I = IRIS: EPA Integrated Risk Information System (IRIS). Available online at: http://www.epa.gov/iris/subst/index.html
P = PPRTV. EPA Provisional Peer Reviewed Toxicity Values (PPRTVs). Available online at:http://hhpprtv.ornl.gov/pprtv.shtml
A = Agency for Toxic Substances and Disease Registry (ATSDR) Minimum Risk Levels (MRLs). Available online at:http://www.atsdr.cdc.gov/mrls/index.html
CA = California Environmental Protection Agency/Office of Environmental Health Hazard Assessment assessments. Available online at:http://www.oehha.ca.gov/risk/ChemicalDB/index.asp
H = HEAST. EPA Superfund Health Effects Assessment Summary Tables (HEAST) database. Available online at:http://epa-heast.ornl.gov/heast.shtml
S = See RSL User Guide, Section 5
X = PPRTV Appendix
Mut = Chemical acts according to the mutagenic-mode-of-action, special exposure parameters apply (see footnote (4) above).
VC = Special exposure equation for vinyl chloride applies (see Navigation Guide for equation).
TCE = Special mutagenic and non-mutagenic IURs for trichloroethylene apply (see footnote (4) above).
Yellow highlighting indicates site-specific parameters that may be edited by the user.
Blue highlighting indicates exposure factors that are based on Risk Assessment Guidance for Superfund (RAGS) or EPA vapor intrusion guidance, which generally should not be changed.
Pink highlighting indicates VI carcinogenic risk greater than the target risk for carcinogens (TCR) or VI Hazard greater than or equal to the target hazard quotient for non-carcinogens (THQ).
VISL Calculator Version 3.4.5, November 2015 RSLs Page 2 of 2
APPENDIX C – ANALYTICAL REPORTS AND CHAIN OF CUSTODY
8/17/2016
Mr. Carlo Zanon
Terracon Consulting Engineers
2020-E Starita Rd
Charlotte NC 28206
Project Name: CHADBOURN MILLS
Project #: 71167330
Dear Mr. Carlo Zanon
The following report includes the data for the above referenced project for sample(s)
received on 8/12/2016 at Air Toxics Ltd.
The data and associated QC analyzed by TO-15 are compliant with the project
requirements or laboratory criteria with the exception of the deviations noted in the
attached case narrative.
Thank you for choosing Eurofins Air Toxics Inc. for your air analysis needs. Eurofins Air
Toxics Inc. is committed to providing accurate data of the highest quality. Please feel free
to contactthe Project Manager: Ausha Scott at 916-985-1000 if you have any questions regarding
the data in this report.
Regards,
Ausha Scott
Project Manager
Workorder #: 1608197A
Page 1 of 19
Mr. Carlo Zanon
Terracon Consulting Engineers
2020-E Starita Rd
Charlotte, NC 28206
WORK ORDER #:1608197A
CLIENT:BILL TO:
PHONE:
Mr. Carlo Zanon
Terracon Consulting Engineers
2020-E Starita Rd
Charlotte, NC 28206
704-509-1777
704-509-1888
08/12/2016
DATE COMPLETED:08/17/2016
P.O. #
PROJECT #71167330 CHADBOURN MILLS
Work Order Summary
FAX:
DATE RECEIVED:CONTACT:Ausha Scott
NAMEFRACTION #TEST VAC./PRES.
RECEIPT
PRESSURE
FINAL
01A SV-01 TO-15 6.1 "Hg 15.1 psi
02A SV-02 TO-15 6.7 "Hg 15 psi
03A SV-03 TO-15 7.8 "Hg 14.9 psi
04A Lab Blank TO-15 NA NA
05A CCV TO-15 NA NA
06A LCS TO-15 NA NA
06AA LCSD TO-15 NA NA
CERTIFIED BY:
Technical Director
DATE:
Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program)
Accreditation number: CA300005, Effective date: 10/18/2015, Expiration date: 10/17/2016.
180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630
[phone] . [phone] . FAX [phone]
08/17/16
Page 2 of 19
This report shall not be reproduced, except in full, without the written approval of Eurofins Air Toxics, Inc.
Eurofins Air Toxics Inc.. certifies that the test results contained in this report meet all requirements of the NELAC standards
Certification numbers: AZ Licensure AZ0775, NJ NELAP - CA016, NY NELAP - 11291,
TX NELAP - T104704434-15-9, UT NELAP CA0093332015-6, VA NELAP - 8113, WA NELAP - C935
LABORATORY NARRATIVEEPA Method TO-15Terracon Consulting EngineersWorkorder# 1608197A
Three 1 Liter Summa Canister samples were received on August 12, 2016. The laboratory performed
analysis via EPA Method TO-15 using GC/MS in the full scan mode.
This workorder was independently validated prior to submittal using 'USEPA National Functional
Guidelines' as generally applied to the analysis of volatile organic compounds in air. A rules-based, logic
driven, independent validation engine was employed to assess completeness, evaluate pass/fail of relevant
project quality control requirements and verification of all quantified amounts.
There were no receiving discrepancies.
Receiving Notes
Due to the linear calibration range of the instrument, the reporting limit for 1,3-Butadiene was raised from
0.5ppbv to 2.0ppbv.
Dilution was performed on sample SV-01 due to the presence of high level target species.
All Quality Control Limit exceedances and affected sample results are noted by flags. Each flag is defined
at the bottom of this Case Narrative and on each Sample Result Summary page. Target compound
non-detects in the samples that are associated with high bias in QC analyses have not been flagged.
Analytical Notes
Eight qualifiers may have been used on the data analysis sheets and indicates as follows:
B - Compound present in laboratory blank greater than reporting limit (background subtraction not
performed).
J - Estimated value.
E - Exceeds instrument calibration range.
S - Saturated peak.
Q - Exceeds quality control limits.
U - Compound analyzed for but not detected above the reporting limit, LOD, or MDL value. See
data page for project specific U-flag definition.
UJ- Non-detected compound associated with low bias in the CCV
N - The identification is based on presumptive evidence.
File extensions may have been used on the data analysis sheets and indicates
as follows:
a-File was requantified
b-File was quantified by a second column and detector
r1-File was requantified for the purpose of reissue
Definition of Data Qualifying Flags
Page 3 of 19
EPA METHOD TO-15 GC/MS FULL SCAN
Summary of Detected Compounds
Client Sample ID: SV-01
Lab ID#: 1608197A-01A
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
20 30 38 56Ethanol
51 210 120 490Acetone
5.1 30 20 120cis-1,2-Dichloroethene
5.1 6.0 25 29Chloroform
5.1 1700 27 9100Trichloroethene
5.1 6.7 34 45Tetrachloroethene
Client Sample ID: SV-02
Lab ID#: 1608197A-02A
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
1.3 5.7 7.3 32Freon 11
5.2 52 9.8 97Ethanol
13 190 31 460Acetone
5.2 11 13 272-Propanol
5.2 13 15 392-Butanone (Methyl Ethyl Ketone)
1.3 31 4.9 120Toluene
1.3 9.8 8.8 66Tetrachloroethene
1.3 1.7 5.6 7.2Ethyl Benzene
1.3 1.8 5.6 7.6m,p-Xylene
1.3 1.5 5.6 6.7o-Xylene
1.3 7.0 5.5 30Styrene
1.3 3.2 6.4 164-Ethyltoluene
1.3 5.4 6.4 261,2,4-Trimethylbenzene
1.3 11 7.8 651,4-Dichlorobenzene
Client Sample ID: SV-03
Lab ID#: 1608197A-03A
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
5.4 31 10 58Ethanol
14 160 32 370Acetone
5.4 6.4 13 162-Propanol
Page 4 of 19
EPA METHOD TO-15 GC/MS FULL SCAN
Summary of Detected Compounds
Client Sample ID: SV-03
Lab ID#: 1608197A-03A
5.4 20 16 582-Butanone (Methyl Ethyl Ketone)
1.4 8.2 4.3 26Benzene
1.4 58 5.1 220Toluene
1.4 2.6 9.2 18Tetrachloroethene
1.4 1.7 5.9 7.4Ethyl Benzene
1.4 3.8 5.9 17m,p-Xylene
1.4 1.9 5.9 8.4o-Xylene
1.4 12 5.8 49Styrene
1.4 3.8 6.7 194-Ethyltoluene
1.4 1.8 6.7 8.81,3,5-Trimethylbenzene
1.4 7.6 6.7 381,2,4-Trimethylbenzene
1.4 12 8.2 701,4-Dichlorobenzene
Page 5 of 19
Client Sample ID: SV-01
Lab ID#: 1608197A-01A
EPA METHOD TO-15 GC/MS FULL SCAN
a081611File Name:
Dil. Factor:10.2
Date of Collection: 8/10/16 1:46:00 PM
Date of Analysis: 8/16/16 04:35 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
5.1 Not Detected 25 Not DetectedFreon 12
5.1 Not Detected 36 Not DetectedFreon 114
51 Not Detected 100 Not DetectedChloromethane
5.1 Not Detected 13 Not DetectedVinyl Chloride
20 Not Detected 45 Not Detected1,3-Butadiene
51 Not Detected 200 Not DetectedBromomethane
20 Not Detected 54 Not DetectedChloroethane
5.1 Not Detected 29 Not DetectedFreon 11
20 30 38 56Ethanol
5.1 Not Detected 39 Not DetectedFreon 113
5.1 Not Detected 20 Not Detected1,1-Dichloroethene
51 210 120 490Acetone
20 Not Detected 50 Not Detected2-Propanol
20 Not Detected 64 Not DetectedCarbon Disulfide
20 Not Detected 64 Not Detected3-Chloropropene
51 Not Detected 180 Not DetectedMethylene Chloride
20 Not Detected 74 Not DetectedMethyl tert-butyl ether
5.1 Not Detected 20 Not Detectedtrans-1,2-Dichloroethene
5.1 Not Detected 18 Not DetectedHexane
5.1 Not Detected 21 Not Detected1,1-Dichloroethane
20 Not Detected 60 Not Detected2-Butanone (Methyl Ethyl Ketone)
5.1 30 20 120cis-1,2-Dichloroethene
5.1 Not Detected 15 Not DetectedTetrahydrofuran
5.1 6.0 25 29Chloroform
5.1 Not Detected 28 Not Detected1,1,1-Trichloroethane
5.1 Not Detected 18 Not DetectedCyclohexane
5.1 Not Detected 32 Not DetectedCarbon Tetrachloride
5.1 Not Detected 24 Not Detected2,2,4-Trimethylpentane
5.1 Not Detected 16 Not DetectedBenzene
5.1 Not Detected 21 Not Detected1,2-Dichloroethane
5.1 Not Detected 21 Not DetectedHeptane
5.1 1700 27 9100Trichloroethene
5.1 Not Detected 24 Not Detected1,2-Dichloropropane
20 Not Detected 74 Not Detected1,4-Dioxane
5.1 Not Detected 34 Not DetectedBromodichloromethane
5.1 Not Detected 23 Not Detectedcis-1,3-Dichloropropene
5.1 Not Detected 21 Not Detected4-Methyl-2-pentanone
5.1 Not Detected 19 Not DetectedToluene
5.1 Not Detected 23 Not Detectedtrans-1,3-Dichloropropene
5.1 Not Detected 28 Not Detected1,1,2-Trichloroethane
5.1 6.7 34 45Tetrachloroethene
20 Not Detected 84 Not Detected2-Hexanone
Page 6 of 19
Client Sample ID: SV-01
Lab ID#: 1608197A-01A
EPA METHOD TO-15 GC/MS FULL SCAN
a081611File Name:
Dil. Factor:10.2
Date of Collection: 8/10/16 1:46:00 PM
Date of Analysis: 8/16/16 04:35 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
5.1 Not Detected 43 Not DetectedDibromochloromethane
5.1 Not Detected 39 Not Detected1,2-Dibromoethane (EDB)
5.1 Not Detected 23 Not DetectedChlorobenzene
5.1 Not Detected 22 Not DetectedEthyl Benzene
5.1 Not Detected 22 Not Detectedm,p-Xylene
5.1 Not Detected 22 Not Detectedo-Xylene
5.1 Not Detected 22 Not DetectedStyrene
5.1 Not Detected 53 Not DetectedBromoform
5.1 Not Detected 25 Not DetectedCumene
5.1 Not Detected 35 Not Detected1,1,2,2-Tetrachloroethane
5.1 Not Detected 25 Not DetectedPropylbenzene
5.1 Not Detected 25 Not Detected4-Ethyltoluene
5.1 Not Detected 25 Not Detected1,3,5-Trimethylbenzene
5.1 Not Detected 25 Not Detected1,2,4-Trimethylbenzene
5.1 Not Detected 31 Not Detected1,3-Dichlorobenzene
5.1 Not Detected 31 Not Detected1,4-Dichlorobenzene
5.1 Not Detected 26 Not Detectedalpha-Chlorotoluene
5.1 Not Detected 31 Not Detected1,2-Dichlorobenzene
20 Not Detected 150 Not Detected1,2,4-Trichlorobenzene
20 Not Detected 220 Not DetectedHexachlorobutadiene
Container Type: 1 Liter Summa Canister
Limits%RecoverySurrogates
Method
94 70-130Toluene-d8
98 70-1301,2-Dichloroethane-d4
101 70-1304-Bromofluorobenzene
Page 7 of 19
Client Sample ID: SV-02
Lab ID#: 1608197A-02A
EPA METHOD TO-15 GC/MS FULL SCAN
a081612File Name:
Dil. Factor:2.60
Date of Collection: 8/10/16 3:38:00 PM
Date of Analysis: 8/16/16 05:02 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
1.3 Not Detected 6.4 Not DetectedFreon 12
1.3 Not Detected 9.1 Not DetectedFreon 114
13 Not Detected 27 Not DetectedChloromethane
1.3 Not Detected 3.3 Not DetectedVinyl Chloride
5.2 Not Detected 12 Not Detected1,3-Butadiene
13 Not Detected 50 Not DetectedBromomethane
5.2 Not Detected 14 Not DetectedChloroethane
1.3 5.7 7.3 32Freon 11
5.2 52 9.8 97Ethanol
1.3 Not Detected 10 Not DetectedFreon 113
1.3 Not Detected 5.2 Not Detected1,1-Dichloroethene
13 190 31 460Acetone
5.2 11 13 272-Propanol
5.2 Not Detected 16 Not DetectedCarbon Disulfide
5.2 Not Detected 16 Not Detected3-Chloropropene
13 Not Detected 45 Not DetectedMethylene Chloride
5.2 Not Detected 19 Not DetectedMethyl tert-butyl ether
1.3 Not Detected 5.2 Not Detectedtrans-1,2-Dichloroethene
1.3 Not Detected 4.6 Not DetectedHexane
1.3 Not Detected 5.3 Not Detected1,1-Dichloroethane
5.2 13 15 392-Butanone (Methyl Ethyl Ketone)
1.3 Not Detected 5.2 Not Detectedcis-1,2-Dichloroethene
1.3 Not Detected 3.8 Not DetectedTetrahydrofuran
1.3 Not Detected 6.3 Not DetectedChloroform
1.3 Not Detected 7.1 Not Detected1,1,1-Trichloroethane
1.3 Not Detected 4.5 Not DetectedCyclohexane
1.3 Not Detected 8.2 Not DetectedCarbon Tetrachloride
1.3 Not Detected 6.1 Not Detected2,2,4-Trimethylpentane
1.3 Not Detected 4.2 Not DetectedBenzene
1.3 Not Detected 5.3 Not Detected1,2-Dichloroethane
1.3 Not Detected 5.3 Not DetectedHeptane
1.3 Not Detected 7.0 Not DetectedTrichloroethene
1.3 Not Detected 6.0 Not Detected1,2-Dichloropropane
5.2 Not Detected 19 Not Detected1,4-Dioxane
1.3 Not Detected 8.7 Not DetectedBromodichloromethane
1.3 Not Detected 5.9 Not Detectedcis-1,3-Dichloropropene
1.3 Not Detected 5.3 Not Detected4-Methyl-2-pentanone
1.3 31 4.9 120Toluene
1.3 Not Detected 5.9 Not Detectedtrans-1,3-Dichloropropene
1.3 Not Detected 7.1 Not Detected1,1,2-Trichloroethane
1.3 9.8 8.8 66Tetrachloroethene
5.2 Not Detected 21 Not Detected2-Hexanone
Page 8 of 19
Client Sample ID: SV-02
Lab ID#: 1608197A-02A
EPA METHOD TO-15 GC/MS FULL SCAN
a081612File Name:
Dil. Factor:2.60
Date of Collection: 8/10/16 3:38:00 PM
Date of Analysis: 8/16/16 05:02 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
1.3 Not Detected 11 Not DetectedDibromochloromethane
1.3 Not Detected 10 Not Detected1,2-Dibromoethane (EDB)
1.3 Not Detected 6.0 Not DetectedChlorobenzene
1.3 1.7 5.6 7.2Ethyl Benzene
1.3 1.8 5.6 7.6m,p-Xylene
1.3 1.5 5.6 6.7o-Xylene
1.3 7.0 5.5 30Styrene
1.3 Not Detected 13 Not DetectedBromoform
1.3 Not Detected 6.4 Not DetectedCumene
1.3 Not Detected 8.9 Not Detected1,1,2,2-Tetrachloroethane
1.3 Not Detected 6.4 Not DetectedPropylbenzene
1.3 3.2 6.4 164-Ethyltoluene
1.3 Not Detected 6.4 Not Detected1,3,5-Trimethylbenzene
1.3 5.4 6.4 261,2,4-Trimethylbenzene
1.3 Not Detected 7.8 Not Detected1,3-Dichlorobenzene
1.3 11 7.8 651,4-Dichlorobenzene
1.3 Not Detected 6.7 Not Detectedalpha-Chlorotoluene
1.3 Not Detected 7.8 Not Detected1,2-Dichlorobenzene
5.2 Not Detected 38 Not Detected1,2,4-Trichlorobenzene
5.2 Not Detected 55 Not DetectedHexachlorobutadiene
Container Type: 1 Liter Summa Canister
Limits%RecoverySurrogates
Method
93 70-130Toluene-d8
93 70-1301,2-Dichloroethane-d4
104 70-1304-Bromofluorobenzene
Page 9 of 19
Client Sample ID: SV-03
Lab ID#: 1608197A-03A
EPA METHOD TO-15 GC/MS FULL SCAN
a081613File Name:
Dil. Factor:2.72
Date of Collection: 8/10/16 2:52:00 PM
Date of Analysis: 8/16/16 05:28 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
1.4 Not Detected 6.7 Not DetectedFreon 12
1.4 Not Detected 9.5 Not DetectedFreon 114
14 Not Detected 28 Not DetectedChloromethane
1.4 Not Detected 3.5 Not DetectedVinyl Chloride
5.4 Not Detected 12 Not Detected1,3-Butadiene
14 Not Detected 53 Not DetectedBromomethane
5.4 Not Detected 14 Not DetectedChloroethane
1.4 Not Detected 7.6 Not DetectedFreon 11
5.4 31 10 58Ethanol
1.4 Not Detected 10 Not DetectedFreon 113
1.4 Not Detected 5.4 Not Detected1,1-Dichloroethene
14 160 32 370Acetone
5.4 6.4 13 162-Propanol
5.4 Not Detected 17 Not DetectedCarbon Disulfide
5.4 Not Detected 17 Not Detected3-Chloropropene
14 Not Detected 47 Not DetectedMethylene Chloride
5.4 Not Detected 20 Not DetectedMethyl tert-butyl ether
1.4 Not Detected 5.4 Not Detectedtrans-1,2-Dichloroethene
1.4 Not Detected 4.8 Not DetectedHexane
1.4 Not Detected 5.5 Not Detected1,1-Dichloroethane
5.4 20 16 582-Butanone (Methyl Ethyl Ketone)
1.4 Not Detected 5.4 Not Detectedcis-1,2-Dichloroethene
1.4 Not Detected 4.0 Not DetectedTetrahydrofuran
1.4 Not Detected 6.6 Not DetectedChloroform
1.4 Not Detected 7.4 Not Detected1,1,1-Trichloroethane
1.4 Not Detected 4.7 Not DetectedCyclohexane
1.4 Not Detected 8.6 Not DetectedCarbon Tetrachloride
1.4 Not Detected 6.4 Not Detected2,2,4-Trimethylpentane
1.4 8.2 4.3 26Benzene
1.4 Not Detected 5.5 Not Detected1,2-Dichloroethane
1.4 Not Detected 5.6 Not DetectedHeptane
1.4 Not Detected 7.3 Not DetectedTrichloroethene
1.4 Not Detected 6.3 Not Detected1,2-Dichloropropane
5.4 Not Detected 20 Not Detected1,4-Dioxane
1.4 Not Detected 9.1 Not DetectedBromodichloromethane
1.4 Not Detected 6.2 Not Detectedcis-1,3-Dichloropropene
1.4 Not Detected 5.6 Not Detected4-Methyl-2-pentanone
1.4 58 5.1 220Toluene
1.4 Not Detected 6.2 Not Detectedtrans-1,3-Dichloropropene
1.4 Not Detected 7.4 Not Detected1,1,2-Trichloroethane
1.4 2.6 9.2 18Tetrachloroethene
5.4 Not Detected 22 Not Detected2-Hexanone
Page 10 of 19
Client Sample ID: SV-03
Lab ID#: 1608197A-03A
EPA METHOD TO-15 GC/MS FULL SCAN
a081613File Name:
Dil. Factor:2.72
Date of Collection: 8/10/16 2:52:00 PM
Date of Analysis: 8/16/16 05:28 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
1.4 Not Detected 12 Not DetectedDibromochloromethane
1.4 Not Detected 10 Not Detected1,2-Dibromoethane (EDB)
1.4 Not Detected 6.3 Not DetectedChlorobenzene
1.4 1.7 5.9 7.4Ethyl Benzene
1.4 3.8 5.9 17m,p-Xylene
1.4 1.9 5.9 8.4o-Xylene
1.4 12 5.8 49Styrene
1.4 Not Detected 14 Not DetectedBromoform
1.4 Not Detected 6.7 Not DetectedCumene
1.4 Not Detected 9.3 Not Detected1,1,2,2-Tetrachloroethane
1.4 Not Detected 6.7 Not DetectedPropylbenzene
1.4 3.8 6.7 194-Ethyltoluene
1.4 1.8 6.7 8.81,3,5-Trimethylbenzene
1.4 7.6 6.7 381,2,4-Trimethylbenzene
1.4 Not Detected 8.2 Not Detected1,3-Dichlorobenzene
1.4 12 8.2 701,4-Dichlorobenzene
1.4 Not Detected 7.0 Not Detectedalpha-Chlorotoluene
1.4 Not Detected 8.2 Not Detected1,2-Dichlorobenzene
5.4 Not Detected 40 Not Detected1,2,4-Trichlorobenzene
5.4 Not Detected 58 Not DetectedHexachlorobutadiene
Container Type: 1 Liter Summa Canister
Limits%RecoverySurrogates
Method
95 70-130Toluene-d8
98 70-1301,2-Dichloroethane-d4
102 70-1304-Bromofluorobenzene
Page 11 of 19
Client Sample ID: Lab Blank
Lab ID#: 1608197A-04A
EPA METHOD TO-15 GC/MS FULL SCAN
a081608File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 01:40 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
0.50 Not Detected 2.5 Not DetectedFreon 12
0.50 Not Detected 3.5 Not DetectedFreon 114
5.0 Not Detected 10 Not DetectedChloromethane
0.50 Not Detected 1.3 Not DetectedVinyl Chloride
2.0 Not Detected 4.4 Not Detected1,3-Butadiene
5.0 Not Detected 19 Not DetectedBromomethane
2.0 Not Detected 5.3 Not DetectedChloroethane
0.50 Not Detected 2.8 Not DetectedFreon 11
2.0 Not Detected 3.8 Not DetectedEthanol
0.50 Not Detected 3.8 Not DetectedFreon 113
0.50 Not Detected 2.0 Not Detected1,1-Dichloroethene
5.0 Not Detected 12 Not DetectedAcetone
2.0 Not Detected 4.9 Not Detected2-Propanol
2.0 Not Detected 6.2 Not DetectedCarbon Disulfide
2.0 Not Detected 6.3 Not Detected3-Chloropropene
5.0 Not Detected 17 Not DetectedMethylene Chloride
2.0 Not Detected 7.2 Not DetectedMethyl tert-butyl ether
0.50 Not Detected 2.0 Not Detectedtrans-1,2-Dichloroethene
0.50 Not Detected 1.8 Not DetectedHexane
0.50 Not Detected 2.0 Not Detected1,1-Dichloroethane
2.0 Not Detected 5.9 Not Detected2-Butanone (Methyl Ethyl Ketone)
0.50 Not Detected 2.0 Not Detectedcis-1,2-Dichloroethene
0.50 Not Detected 1.5 Not DetectedTetrahydrofuran
0.50 Not Detected 2.4 Not DetectedChloroform
0.50 Not Detected 2.7 Not Detected1,1,1-Trichloroethane
0.50 Not Detected 1.7 Not DetectedCyclohexane
0.50 Not Detected 3.1 Not DetectedCarbon Tetrachloride
0.50 Not Detected 2.3 Not Detected2,2,4-Trimethylpentane
0.50 Not Detected 1.6 Not DetectedBenzene
0.50 Not Detected 2.0 Not Detected1,2-Dichloroethane
0.50 Not Detected 2.0 Not DetectedHeptane
0.50 Not Detected 2.7 Not DetectedTrichloroethene
0.50 Not Detected 2.3 Not Detected1,2-Dichloropropane
2.0 Not Detected 7.2 Not Detected1,4-Dioxane
0.50 Not Detected 3.4 Not DetectedBromodichloromethane
0.50 Not Detected 2.3 Not Detectedcis-1,3-Dichloropropene
0.50 Not Detected 2.0 Not Detected4-Methyl-2-pentanone
0.50 Not Detected 1.9 Not DetectedToluene
0.50 Not Detected 2.3 Not Detectedtrans-1,3-Dichloropropene
0.50 Not Detected 2.7 Not Detected1,1,2-Trichloroethane
0.50 Not Detected 3.4 Not DetectedTetrachloroethene
2.0 Not Detected 8.2 Not Detected2-Hexanone
Page 12 of 19
Client Sample ID: Lab Blank
Lab ID#: 1608197A-04A
EPA METHOD TO-15 GC/MS FULL SCAN
a081608File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 01:40 PM
(ug/m3)(ug/m3)(ppbv)(ppbv)Compound
AmountRpt. LimitAmountRpt. Limit
0.50 Not Detected 4.2 Not DetectedDibromochloromethane
0.50 Not Detected 3.8 Not Detected1,2-Dibromoethane (EDB)
0.50 Not Detected 2.3 Not DetectedChlorobenzene
0.50 Not Detected 2.2 Not DetectedEthyl Benzene
0.50 Not Detected 2.2 Not Detectedm,p-Xylene
0.50 Not Detected 2.2 Not Detectedo-Xylene
0.50 Not Detected 2.1 Not DetectedStyrene
0.50 Not Detected 5.2 Not DetectedBromoform
0.50 Not Detected 2.4 Not DetectedCumene
0.50 Not Detected 3.4 Not Detected1,1,2,2-Tetrachloroethane
0.50 Not Detected 2.4 Not DetectedPropylbenzene
0.50 Not Detected 2.4 Not Detected4-Ethyltoluene
0.50 Not Detected 2.4 Not Detected1,3,5-Trimethylbenzene
0.50 Not Detected 2.4 Not Detected1,2,4-Trimethylbenzene
0.50 Not Detected 3.0 Not Detected1,3-Dichlorobenzene
0.50 Not Detected 3.0 Not Detected1,4-Dichlorobenzene
0.50 Not Detected 2.6 Not Detectedalpha-Chlorotoluene
0.50 Not Detected 3.0 Not Detected1,2-Dichlorobenzene
2.0 Not Detected 15 Not Detected1,2,4-Trichlorobenzene
2.0 Not Detected 21 Not DetectedHexachlorobutadiene
Container Type: NA - Not Applicable
Limits%RecoverySurrogates
Method
97 70-130Toluene-d8
96 70-1301,2-Dichloroethane-d4
101 70-1304-Bromofluorobenzene
Page 13 of 19
Client Sample ID: CCV
Lab ID#: 1608197A-05A
EPA METHOD TO-15 GC/MS FULL SCAN
a081603File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 10:55 AM
%RecoveryCompound
107Freon 12
106Freon 114
102Chloromethane
98Vinyl Chloride
1041,3-Butadiene
110Bromomethane
104Chloroethane
105Freon 11
102Ethanol
102Freon 113
1051,1-Dichloroethene
112Acetone
982-Propanol
100Carbon Disulfide
923-Chloropropene
108Methylene Chloride
93Methyl tert-butyl ether
102trans-1,2-Dichloroethene
95Hexane
1011,1-Dichloroethane
882-Butanone (Methyl Ethyl Ketone)
113cis-1,2-Dichloroethene
98Tetrahydrofuran
98Chloroform
1021,1,1-Trichloroethane
94Cyclohexane
105Carbon Tetrachloride
1002,2,4-Trimethylpentane
100Benzene
1041,2-Dichloroethane
97Heptane
102Trichloroethene
1001,2-Dichloropropane
921,4-Dioxane
104Bromodichloromethane
93cis-1,3-Dichloropropene
934-Methyl-2-pentanone
99Toluene
100trans-1,3-Dichloropropene
1041,1,2-Trichloroethane
106Tetrachloroethene
902-Hexanone
Page 14 of 19
Client Sample ID: CCV
Lab ID#: 1608197A-05A
EPA METHOD TO-15 GC/MS FULL SCAN
a081603File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 10:55 AM
%RecoveryCompound
106Dibromochloromethane
1041,2-Dibromoethane (EDB)
100Chlorobenzene
98Ethyl Benzene
96m,p-Xylene
94o-Xylene
90Styrene
108Bromoform
98Cumene
961,1,2,2-Tetrachloroethane
98Propylbenzene
984-Ethyltoluene
951,3,5-Trimethylbenzene
951,2,4-Trimethylbenzene
1011,3-Dichlorobenzene
1031,4-Dichlorobenzene
86alpha-Chlorotoluene
1001,2-Dichlorobenzene
1021,2,4-Trichlorobenzene
108Hexachlorobutadiene
Container Type: NA - Not Applicable
Limits%RecoverySurrogates
Method
97 70-130Toluene-d8
97 70-1301,2-Dichloroethane-d4
101 70-1304-Bromofluorobenzene
Page 15 of 19
Client Sample ID: LCS
Lab ID#: 1608197A-06A
EPA METHOD TO-15 GC/MS FULL SCAN
a081604File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 11:34 AM
Limits%RecoveryCompound
Method
110 70-130Freon 12
109 70-130Freon 114
102 70-130Chloromethane
102 70-130Vinyl Chloride
102 70-1301,3-Butadiene
113 70-130Bromomethane
105 70-130Chloroethane
110 70-130Freon 11
108 70-130Ethanol
103 70-130Freon 113
104 70-1301,1-Dichloroethene
109 70-130Acetone
114 70-1302-Propanol
88 70-130Carbon Disulfide
89 70-1303-Chloropropene
107 70-130Methylene Chloride
97 70-130Methyl tert-butyl ether
102 70-130trans-1,2-Dichloroethene
94 70-130Hexane
101 70-1301,1-Dichloroethane
88 70-1302-Butanone (Methyl Ethyl Ketone)
110 70-130cis-1,2-Dichloroethene
100 70-130Tetrahydrofuran
100 70-130Chloroform
103 70-1301,1,1-Trichloroethane
98 70-130Cyclohexane
106 70-130Carbon Tetrachloride
103 70-1302,2,4-Trimethylpentane
102 70-130Benzene
106 70-1301,2-Dichloroethane
98 70-130Heptane
105 70-130Trichloroethene
102 70-1301,2-Dichloropropane
106 70-1301,4-Dioxane
108 70-130Bromodichloromethane
89 70-130cis-1,3-Dichloropropene
108 70-1304-Methyl-2-pentanone
100 70-130Toluene
104 70-130trans-1,3-Dichloropropene
109 70-1301,1,2-Trichloroethane
110 70-130Tetrachloroethene
124 70-1302-Hexanone
Page 16 of 19
Client Sample ID: LCS
Lab ID#: 1608197A-06A
EPA METHOD TO-15 GC/MS FULL SCAN
a081604File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 11:34 AM
Limits%RecoveryCompound
Method
111 70-130Dibromochloromethane
110 70-1301,2-Dibromoethane (EDB)
105 70-130Chlorobenzene
101 70-130Ethyl Benzene
102 70-130m,p-Xylene
104 70-130o-Xylene
104 70-130Styrene
118 70-130Bromoform
105 70-130Cumene
104 70-1301,1,2,2-Tetrachloroethane
108 70-130Propylbenzene
113 70-1304-Ethyltoluene
105 70-1301,3,5-Trimethylbenzene
108 70-1301,2,4-Trimethylbenzene
110 70-1301,3-Dichlorobenzene
113 70-1301,4-Dichlorobenzene
94 70-130alpha-Chlorotoluene
111 70-1301,2-Dichlorobenzene
134 Q 70-1301,2,4-Trichlorobenzene
144 Q 70-130Hexachlorobutadiene
Q = Exceeds Quality Control limits.
Container Type: NA - Not Applicable
Limits%RecoverySurrogates
Method
97 70-130Toluene-d8
98 70-1301,2-Dichloroethane-d4
101 70-1304-Bromofluorobenzene
Page 17 of 19
Client Sample ID: LCSD
Lab ID#: 1608197A-06AA
EPA METHOD TO-15 GC/MS FULL SCAN
a081605File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 11:59 AM
Limits%RecoveryCompound
Method
109 70-130Freon 12
109 70-130Freon 114
102 70-130Chloromethane
102 70-130Vinyl Chloride
101 70-1301,3-Butadiene
113 70-130Bromomethane
107 70-130Chloroethane
108 70-130Freon 11
117 70-130Ethanol
103 70-130Freon 113
106 70-1301,1-Dichloroethene
105 70-130Acetone
115 70-1302-Propanol
89 70-130Carbon Disulfide
92 70-1303-Chloropropene
106 70-130Methylene Chloride
96 70-130Methyl tert-butyl ether
106 70-130trans-1,2-Dichloroethene
95 70-130Hexane
101 70-1301,1-Dichloroethane
90 70-1302-Butanone (Methyl Ethyl Ketone)
111 70-130cis-1,2-Dichloroethene
102 70-130Tetrahydrofuran
99 70-130Chloroform
103 70-1301,1,1-Trichloroethane
98 70-130Cyclohexane
106 70-130Carbon Tetrachloride
103 70-1302,2,4-Trimethylpentane
100 70-130Benzene
102 70-1301,2-Dichloroethane
97 70-130Heptane
102 70-130Trichloroethene
100 70-1301,2-Dichloropropane
101 70-1301,4-Dioxane
105 70-130Bromodichloromethane
87 70-130cis-1,3-Dichloropropene
105 70-1304-Methyl-2-pentanone
98 70-130Toluene
98 70-130trans-1,3-Dichloropropene
103 70-1301,1,2-Trichloroethane
106 70-130Tetrachloroethene
118 70-1302-Hexanone
Page 18 of 19
Client Sample ID: LCSD
Lab ID#: 1608197A-06AA
EPA METHOD TO-15 GC/MS FULL SCAN
a081605File Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/16/16 11:59 AM
Limits%RecoveryCompound
Method
105 70-130Dibromochloromethane
104 70-1301,2-Dibromoethane (EDB)
99 70-130Chlorobenzene
99 70-130Ethyl Benzene
97 70-130m,p-Xylene
98 70-130o-Xylene
100 70-130Styrene
111 70-130Bromoform
100 70-130Cumene
99 70-1301,1,2,2-Tetrachloroethane
104 70-130Propylbenzene
106 70-1304-Ethyltoluene
100 70-1301,3,5-Trimethylbenzene
103 70-1301,2,4-Trimethylbenzene
104 70-1301,3-Dichlorobenzene
108 70-1301,4-Dichlorobenzene
90 70-130alpha-Chlorotoluene
105 70-1301,2-Dichlorobenzene
128 70-1301,2,4-Trichlorobenzene
140 Q 70-130Hexachlorobutadiene
Q = Exceeds Quality Control limits.
Container Type: NA - Not Applicable
Limits%RecoverySurrogates
Method
95 70-130Toluene-d8
97 70-1301,2-Dichloroethane-d4
101 70-1304-Bromofluorobenzene
Page 19 of 19
8/17/2016
Mr. Carlo Zanon
Terracon Consulting Engineers
2020-E Starita Rd
Charlotte NC 28206
Project Name: CHADBOURN MILLS
Project #: 71167330
Dear Mr. Carlo Zanon
The following report includes the data for the above referenced project for sample(s)
received on 8/12/2016 at Air Toxics Ltd.
The data and associated QC analyzed by Modified ASTM D-1946 are compliant with
the project requirements or laboratory criteria with the exception of the deviations noted
in the attached case narrative.
Thank you for choosing Eurofins Air Toxics Inc. for your air analysis needs. Eurofins Air
Toxics Inc. is committed to providing accurate data of the highest quality. Please feel free to
contactthe Project Manager: Ausha Scott at 916-985-1000 if you have any questions regarding
the data in this report.
Regards,
Ausha Scott
Project Manager
Workorder #: 1608197B
Page 1 of 8
Mr. Carlo Zanon
Terracon Consulting Engineers
2020-E Starita Rd
Charlotte, NC 28206
WORK ORDER #:1608197B
CLIENT:BILL TO:
PHONE:
Mr. Carlo Zanon
Terracon Consulting Engineers
2020-E Starita Rd
Charlotte, NC 28206
704-509-1777
704-509-1888
08/12/2016
DATE COMPLETED:08/17/2016
P.O. #
PROJECT #71167330 CHADBOURN MILLS
Work Order Summary
FAX:
DATE RECEIVED:CONTACT:Ausha Scott
NAMEFRACTION #TEST VAC./PRES.
RECEIPT
PRESSURE
FINAL
02A SV-02 Modified ASTM D-1946 6.7 "Hg 15 psi
03A Lab Blank Modified ASTM D-1946 NA NA
04A LCS Modified ASTM D-1946 NA NA
CERTIFIED BY:
Technical Director
DATE:
Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program)
Accreditation number: CA300005, Effective date: 10/18/2015, Expiration date: 10/17/2016.
180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630
[phone] . [phone] . FAX [phone]
08/17/16
Page 2 of 8
This report shall not be reproduced, except in full, without the written approval of Eurofins Air Toxics, Inc.
Eurofins Air Toxics Inc.. certifies that the test results contained in this report meet all requirements of the NELAC standards
Certification numbers: AZ Licensure AZ0775, NJ NELAP - CA016, NY NELAP - 11291,
TX NELAP - T104704434-15-9, UT NELAP CA0093332015-6, VA NELAP - 8113, WA NELAP - C935
LABORATORY NARRATIVEModified ASTM D-1946Terracon Consulting EngineersWorkorder# 1608197B
One 1 Liter Summa Canister sample was received on August 12, 2016. The laboratory performed
analysis via Modified ASTM Method D-1946 for Helium in air using GC/TCD. The method involves
direct injection of 1.0 mL of sample.
Method modifications taken to run these samples are summarized in the table below. Specific project
requirements may over-ride the EATL modifications.
Requirement ATL ModificationsASTM D-1946
Calibration A single point
calibration is performed
using a reference
standard closely
matching the
composition of the
unknown.
A minimum of 5-point calibration curve is performed.
Quantitation is based on average Response Factor.
Reference Standard The composition of any
reference standard must
be known to within
0.01 mol % for any
component.
The standards used by ATL are blended to a >/= 95%
accuracy.
Sample Injection Volume Components whose
concentrations are in
excess of 5 % should
not be analyzed by
using sample volumes
greater than 0.5 mL.
The sample container is connected directly to a fixed
volume sample loop of 1.0 mL on the GC. Linear range is
defined by the calibration curve. Bags are loaded by
vacuum.
Normalization Normalize the mole
percent values by
multiplying each value
by 100 and dividing by
the sum of the original
values. The sum of the
original values should
not differ from 100%
by more than 1.0%.
Results are not normalized. The sum of the reported
values can differ from 100% by as much as 15%, either
due to analytical variability or an unusual sample matrix.
Precision Precision requirements
established at each
concentration level.
Duplicates should agree within 25% RPD for detections >
5 X's the RL.
Receiving Notes
There were no receiving discrepancies.
There were no analytical discrepancies.
Analytical Notes
Page 3 of 8
Seven qualifiers may have been used on the data analysis sheets and indicate as follows:
B - Compound present in laboratory blank greater than reporting limit.
J - Estimated value.
E - Exceeds instrument calibration range.
S - Saturated peak.
Q - Exceeds quality control limits.
U - Compound analyzed for but not detected above the detection limit.
M - Reported value may be biased due to apparent matrix interferences.
File extensions may have been used on the data analysis sheets and indicates
as follows:
a-File was requantified
b-File was quantified by a second column and detector
r1-File was requantified for the purpose of reissue
Definition of Data Qualifying Flags
Page 4 of 8
NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946
Summary of Detected Compounds
Client Sample ID: SV-02
Lab ID#: 1608197B-02A
No Detections Were Found.
Page 5 of 8
Client Sample ID: SV-02
Lab ID#: 1608197B-02A
NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946
10081706cFile Name:
Dil. Factor:2.60
Date of Collection: 8/10/16 3:38:00 PM
Date of Analysis: 8/17/16 10:05 AM
(%)(%)Compound
AmountRpt. Limit
0.13 Not DetectedHelium
Container Type: 1 Liter Summa Canister
Page 6 of 8
Client Sample ID: Lab Blank
Lab ID#: 1608197B-03A
NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946
10081705cFile Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/17/16 09:23 AM
(%)(%)Compound
AmountRpt. Limit
0.050 Not DetectedHelium
Container Type: NA - Not Applicable
Page 7 of 8
Client Sample ID: LCS
Lab ID#: 1608197B-04A
NATURAL GAS ANALYSIS BY MODIFIED ASTM D-1946
10081702cFile Name:
Dil. Factor:1.00
Date of Collection: NA
Date of Analysis: 8/17/16 08:08 AM
Limits%RecoveryCompound
Method
102 85-115Helium
Container Type: NA - Not Applicable
Page 8 of 8