DSHW-2018-004591 - 0901a0688082616e

trr4
Senior Geologist
-
( Jtilie Kilgore, President
Environmental Manager
Div of Waste Management
and Radiation Control
MAY2_1_2018
WASATCH ENVIRONMENTAL, INC.
ENVIRONMENTAL SCIENCE AND ENGINEERING Lt-r-CA- op13 Psi-m-zpto- 00 459 f
SAMPLING AND ANALYSIS PLAN IMPLEMENTATION REPORT
PARK EAST APARTMENTS
1717 EAST MURRAY-HOLLIDAY ROAD
MILLCREEK, UTAH
PROJECT NO. 2276-001A
PREPARED FOR:
MR. SCOTT T. ANDERSON
UTAH DEPARTMENT OF ENVIRONMENTAL QUALITY
DIVISION OF WASTE MANAGEMENT AND RADIATION CONTROL
195 NORTH 1950 WEST, 2ND FLOOR
P.O. BOX 144880
SALT LAKE CITY, UTAH 84114-4880
PREPARED BY:
WASATCH ENVIRONMENTAL, INC.
2410 WEST CALIFORNIA AVE
SALT LAKE CITY, UTAH 84104
PHONE: [phone]
FAX: [phone]
MAY 9, 2018
2410 WEST CALIFORNIA AVENUE
SALT LAKE CITY, UTAH 84104 PHONE [phone]
FAX [phone]
wei@wasatch-environmental com
www. wasatch-environmentatcom
Sampling and Analysis Plan Implementation Report Park East Apartments
TABLE OF CONTENTS
Section Page No.
1. INTRODUCTION 2
2. BACKGROUND 2
3. OBJECTIVE 3
4. SITE INVESTIGATION ACTIVITIES 3
5. METHODOLOGY 3
Indoor Air Sampling 3
Sub-Slab Soil Vapor Sampling 4
6. RESULTS 4
7. DISCUSSION 5
FIGURES
Figure 1 — Sample Location Map
TABLES
Table 1 — Indoor Air Analytical Results
Table 2 — Sub Slab Vapor Analytical Results
Table 3 — Groundwater Analytical Results
Table 4 — Soil Gas Analytical Results
APPENDICES
Appendix A — Indoor Air Sample Analytical Report
Appendix B — Sub Slab Vapor Analytical Report
Appendix C — U.S. EPA Memorandum on Removal of the trans-1,2-dichloroethylene Provisional Peer
Reviewed Toxicity Value
Wasatch Environmental, inc. Page 1
Sampling and Analysis Plan Implementation Report Park East Apartments
SAMPLING AND ANALYSIS PLAN IMPLEMENTATION REPORT
PARK EAST APARTMENTS
1717 EAST MURRAY HOLLADAY ROAD
MILLCREEK, UTAH
1. INTRODUCTION
Wasatch Environmental, Inc., (Wasatch) has completed investigation activities at the Park East
Apartments. The investigation activities were described in a Sampling and Analysis Plan (SAP), dated
March 30, 2018, which was submitted to and approved by the Utah Division of Waste Management and
Radiation Control (DWMRC) on April 19, 2018. The scope of work included the collection of five 24-hour
indoor air samples and the collection of four sub slab soil vapor samples.
2. BACKGROUND
In the Fall of 2017, a lender had a Phase I Environmental Site Assessment completed for the subject
property, which identified the presence of a former dry-cleaning facility on the east adjoining property.
The lender requested that K & H Development, LLC, the owners of the Park East Apartments, conduct a
Limited Site Investigation to investigate if impacts from the former dry cleaner are present on the Park
East Property.
Wasatch conducted a limited subsurface investigation, which included:
1. advancing four soil borings
2. the collection and laboratory analysis of groundwater samples, and
3. the installation, sampling, and laboratory analysis of six soil gas samples.
The results of the investigation were summarized in a Soil Gas and Groundwater Sampling Report, dated
December 13, 2017. The report indicates that a release of volatile organic compounds (VOCs) from the
east-adjoining dry-cleaning facility has impacted a portion of the groundwater at the Park East
Apartments property. The groundwater analytical results were compared to the U.S. Environmental
Protection Agency (EPA) Vapor Intrusion Screening Levels (VISL) for residential properties, which
indicated that there was a potential for trichloroethene (TCE) and vinyl chloride to be present in indoor air
at a concentration greater that the U.S. EPA Regional Screening Level (RSL) for indoor air.
Results of soil gas sampling indicated the presence of dry-cleaning related solvents in the soil gas in the
areas sampled. However, all the reported concentrations in samples SV-1, SV-2, and SV-3 (see Figure
1) were either below the laboratory reporting limits, or below U.S. EPA Target Sub-Slab and Exterior Soil
Gas Concentrations.
All reported concentrations in sample SV-4, collected 45 feet southeast of Building C, were either below
the laboratory reporting limits, or below U.S. EPA Target Sub-Slab and Exterior Soil Gas Concentrations
with the exception of vinyl chloride, which was detected above the Target Sub-Slab and Exterior Soil Gas
Concentration of 5.6 micrograms per cubic meter (ug/m3). Additional soil gas samples SV-5 and SV-6,
which were collected adjacent to the east and west of Building C did not contain vinyl chloride or other
compounds of concern above the U.S. EPA Target Sub-Slab and Exterior Soil Gas Concentrations.
Wasatch provided a copy of the Soil Gas and Groundwater Sampling Investigation report, to DWMRC for
review and guidance for the steps necessary to receive site closure. DWMRC's reply to K & H
Development, dated December 20, 2017, states the following:
"To further evaluate the vapor intrusion risk to residents of the apartments (A, B, and C), the
Division recommends Wasatch Environmental submit a work plan for review and approval that
Wasatch Environmental, inc. Page 2
Sampling and Analysis Plan Implementation Report Park East Apartments
details efforts to conduct indoor air monitoring of the apartment buildings. The data collected will
help in determining if there is a VI [vapor intrusion] risk at the property that requires mitigation."
The approved SAP described additional data collection activities proposed to evaluate if there is a VI risk
at the property.
3. OBJECTIVE
The objectives of this investigation were to:
• Evaluate the sub-slab soil gas and indoor air for VOCs related to dry-cleaning solvents and their
daughter degradation compounds, and
• Evaluate the vapor intrusion pathway for Buildings B and C.
4. SITE INVESTIGATION ACTIVITIES
The sample locations (Figure 1) are based on advice from the risk assessor, Ms. Paige Walton, who
suggested sampling at the north portion of Building B and South portion of Building C after review of the
groundwater and soil vapor results from the previous investigation.
On March 13, 2018, prior to submittal of the SAP, Wasatch collect a 24-hour indoor air sample from
Apartment B-101. Apartment B-101 was a ground level apartment which was never occupied but had
tenants ready to occupy the apartment. Prior to written SAP approval, but with verbal approval from
DWMRC, on April 9, 2018, Wasatch collected 24-hour indoor air samples at one location in a ground level
common hallway in Building B and at two ground level hallway locations in Building C. For quality
assurance/quality control, a background sample was also collected from a fourth-floor outside balcony.
On April 18, 2018, Wasatch collected a 24-hour indoor air sample from recently vacated ground level
Apartment C-106, prior to cleaning and painting in advance of a new tenant. The indoor air sampling
methodology is described in Section 5.
On April 27, 2018, Wasatch collect four sub slab soil vapor samples. Sample SS-1 was collected in the
northern portion of Building B in a utility closet containing HVAC and a water heater for an adjoining
apartment, sample SS-2 was collected in the garage located at the northeast corner of Building B, sample
SS-3 was collected from a utility closet at the southern portion of Building C, and sample SS-4 was
collected in the garage located at the southeast corner of Building C.
The sub slab sampling methodology is described in Section 5.
5. METHODOLOGY
Indoor Air Sampling
Wasatch placed 6-liter Summa canisters with a 24-hour flow restrictor attached to each sampling canister
at an inlet height of approximately 2 feet. The initial vacuum reading was checked and recorded, and the
samples were collected for approximately 24 hours. The following day, the final vacuum reading was
checked and recorded, the sample canisters closed, the flow restrictor removed, and a brass cap
tightened to the inlet of the sample canister. Canisters were labeled with the appropriate sample location,
as well as initial and final vacuum readings. The canisters were hand delivered under chain-of-custody
protocol to ALS Laboratories, a Utah-certified laboratory, Salt Lake City, Utah, for the analysis of the
following VOCs of concern using U.S. EPA Method TO-15 selective ion monitoring (SIM):
Wasatch Environmental, inc. Page 3
Sampling and Analysis Plan Implementation Report Park East Apartments
• Tetrachloroethene (PCE)
• Trichloroethene (TCE)
• trans-1,2-Dichloroethene
• cis-1,2-Dichloroethene
• 1,1-Dichloroethene
• Vinyl Chloride
Sub-Slab Soil Vapor Sampling
To collect sub-slab soil vapor samples, Wasatch drilled a %-inch hole through the concrete slab at each
sample location using a percussion hammer drill. A soil vapor pin with a silicon sleeve was inserted into
the hole and allowed to set up for approximately 30 minutes. A sample manifold with a flow restrictor was
attached to a laboratory supplied 1-liter Summa canister and the initial vacuum in the canister recorded.
Wasatch personnel attached the Summa canister to the vapor pin using new Teflon tubing. The vacuum
gauge on the flow restrictor was monitored, with decreasing vacuum pressure indicating that soil gas was
being collected into the sample canister. Samples were collected for approximately 10 minutes. The
sample canister was closed, and a brass cap tightened to the inlet of the sample canister.
During sample collection, an isopropyl alcohol swab was placed near the canister to evaluate for leaks.
At the conclusion of sampling, the vapor pins were removed, and the holes filled and finished with
concrete.
The sub-slab soil vapor samples were submitted under chain-of-custody to ESC Laboratory, Mt. Juliet,
Tennessee, for VOC analysis using EPA Method TO-15. The samples were analyzed for the
contaminants of concern: PCE, TCE, cis-1,2-dichloroethene, trans-1,2-dichloroethene, 1,1-
dichloroethene, and vinyl chloride.
6. RESULTS
The analytical results of indoor air sampling are summarized in Table 1. For comparison, the U.S. EPA
RSLs for indoor residential air are also shown. As shown on Table 1 the sample results did not exhibit
any constituents above the laboratory reporting limits or the U.S. EPA Regional Screening Levels (RSLs)
for indoor residential air except for trans-1,2-dichloroethene, which was reported at concentrations
between 7.0 micrograms per cubic meter (ug/m3) and 74 ug/m3. The background sample contained
trans-1,2-dichloroethene at a concentration of 0.71 ug/m3. There is no U.S. EPA RSL established for
trans-1,2-dichloroethene. Copies of the indoor air analytical laboratory report is presented in Appendix A.
The analytical results of the sub slab vapor sampling are summarized in Table 2. For comparison the
U.S. EPA Target Sub Slab and Exterior Soil Gas Concentrations are shown. The U.S. EPA Target Sub
Slab and Exterior Soil Gas Concentrations include a sub slab attenuation factor of approximately 0.33.
As shown on Table 2 the sample results did not exhibit any constituents above the laboratory reporting
limits for TCE, cis 1,2-dichloroethene, or 1,1-dichloroethene. PCE was reported above laboratory
reporting limits in both garage locations (SS-2 and SS-4) but at concentrations well below the U.S. EPA
Target Sub Slab and Exterior Soil Gas Concentration for PCE of 360 ug/m3. Vinyl chloride was identified
in one sub slag sample SS-3 at a concentration of 3.65 ug/m3, which is below the U.S. EPA Target Sub
Slab and Exterior Soil Gas Concentration for vinyl chloride of 5.6 ug/m3.
Trans-1,2-dichloroethene was identified in all of the sub slab sample results at concentrations ranging
from 6.64 ug/m3 to 474 ug/m3. There is no U.S. EPA RSL or U.S. EPA Target Sub Slab and Exterior Soil
Gas Concentration established for trans-1,2-dichloroethene. A copy of the sub slab analytical laboratory
report is presented in Appendix B.
Wasatch Environmental, Inc. Page 4
Sampling and Analysis Plan Implementation Report Park East Apartments
7. DISCUSSION
Based on the groundwater analytical results from the December 2017 sampling investigation (Table 3),
the conservative VISL lookup values predicted a potential for vapor intrusion of TCE and vinyl chloride.
Based on the soil vapor sample collected at SV-4, the U.S. EPA Target Sub Slab and Exterior Soil Gas
Concentration lookup values predicted a vapor intrusion potential for vinyl chloride. Neither TCE nor vinyl
chloride were identified above laboratory reporting limits in the indoor air samples. PCE and vinyl
chloride were identified in sub slab vapor samples, however the concentrations were below the
established U.S. EPA Target Sub Slab and Exterior Soil Gas Concentrations for PCE and vinyl chloride.
Because the identified concentration of PCE and vinyl chloride are low compared to the target
concentrations, cumulative exposure from PCE and vinyl chloride would not result in excess risk. No
PCE was identified above laboratory reporting limit in the indoor air samples.
Trans-1,2-dichloroethene was identified in every indoor air sample and sub slab vapor sample, including
the background air sample collected from an outside fourth floor balcony. As previously discussed, there
is not an established U.S. EPA RSL or U.S. EPA Target Sub Slab and Exterior Soil Gas Concentration
established for trans-1,2-dichloroethene. A memorandum from the U. S. EPA director of Superfund
Health Risk Technical Support Center, dated June 17, 2014, discussing the derivation of an initial
reference concentration for trans-1,2-dichloroethylene (also known as trans-1,2-dichloroethene) suggests
that later studies refute the initial derived chronic reference dose as no adverse health impacts were
observed at exposure concentrations 20-fold higher. The later studies were the justification in removing a
toxicity value for trans-1,2-dichloroethene. A copy of the memorandum is attached in Appendix C. There
are no acceptable surrogate chemicals to assess inhalation toxicity for trans-1,2-dichloroethene (or cis-
1,2-dichloroethene) but these compounds are not believed to be toxic via inhalation.
Based on the results of indoor air and sub slab vapor sampling, we found no concentrations of indoor
vapors above established U.S. EPA guidance which would require mitigation. Trans-1,2-dichloroethene,
which was the only chemical identified above laboratory reporting limits in the indoor air samples, appears
low and well below concentrations of concern. It is Wasatch's opinion based on available data that the
groundwater impacts on the property do not present a potential for vapor intrusion impact to residents at
the Park East Apartments.
Wasatch Environmental, inc. Page 5
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PARK EAST APARTMENTS WE12276-001A
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The use or reuse of this information is restricted to the referenced document unless otherwise authorized. Wasatch Environmental Copyright 2006
Table 1
indoor Air Results Park East Apartments
1709 E. Murray Holladay Road
Millcreek, Utah
(all concentrations are expressed in micrograms per cubic meter htg/m31)
Sampling Location
Te
tr
a
c
hl
o
r
oe
the
n
e

(
PCE
)

CD C C) .0 t'D 2 o .c o •r: 1-
cis
-
1,
2-
Di
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hl
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the
n
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tr
a
ns
-
1,
2-
Di
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hlo
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o
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the
ne

1,
1-
Di
c
hl
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ro
ethe
n
e

Vin
y
l
c
hl
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rid
e

Apart-B 101 <0.34 <0.27 <0.20 74 <0.20 <0.13
Building B Common Area <0.34 <0.27 <0.20 7.0 <0.20 <0.13
Building C North <0.34 <0.27 <0.20 26 <0.20 <0.13
Apart C 106 <0.34 <0.27 <0.20 42 <0.20 <0.13
Building C South <0.34 <0.27 <0.20 33 <0.20 <0.13
Background Sample <0.34 <0.27 <0.20 0.71 <0.20 <0.13
U.S. EPA Regional Screening Levels for
Residential indoor Air 11 0.48 NE NE 210 0.17
NOTES:
< = concentration was below the laboratory reporting limit
NE = not established
Table 2
Sub Slab Vapor Analytical Results
Park East Apartments
1709 E. Murray Holladay Road
Millcreek, Utah
(all concentrations are expressed in micrograms per cubic meter hig/m31)
Sampling Location
Te
tr
a
chl
o
r
o
e
the
n
e

(
PCE
)

Tr
ic
hlo
r
o
e
the
n
e

cis

1
,
2-
Di
c
hl
o
r
o
ethe
n
e

tr
a
ns
-
1,
2-
Di
c
hl
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ro
e
the
n
e

1,
1-
Di
c
hl
o
ro
e
the
ne

Vi
n
y
l
c
hl
o
r
id
e

SS-1 <2.72 <2.14 <1.59 6.34 <2.14 <1.59
SS-2 4.37 <2.14 <1.59 48.5 <2.14 <1.59
SS-3 <2.72 <2.14 <1.59 81.6 <2.14 3.65
SS-4 9.04 <2.14 <1.59 474 <2.14 <1.59
U.S. EPA Target Sub-Slab and Exterior
Soil Gas Concentration 360 16 NE NE 7,000 5.6
NOTES:
< = concentration was below the laboratory reporting limit
NE = not established
Table 3
Groundwater Analytical Results
Park East Apartments
1709 E. Murray Holladay Road
Millcreek, Utah
all concentrations are expressed in micrograms per liter (pg/L)
Sampling Location Sampling Date
Te
tr
a
c
hlo
ro
e
the
n
e

(
PC
E
)

Tr
ic
hl
o
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e
the
n
e

cis
-
1,
2-
Dic
hl
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ro
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the
ne

tr
a
n
s
-
1,
2-
Di
c
hlo
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e
the
ne

1,
1-
Di
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hl
o
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o
e
the
n
e

Vin
y
l
C
h
l
o
rid
e

GP-1 GW 11/29/2017 <0.262 0.390 0.520 <0.828 <0.263 <0.265
GP-2 GW 11/29/2017 1 9.05 99.8 2.67 <0.263 0.860
GP-3 GW 11/29/2017 1.3 9.50 62.9 2.37 <0.263 1.23
GP-4 GW 11/29/2017 2.48 9.72 54.0 2.12 <0.263 0.9
VISL Target Groundwater Concentrations-Residential 15 1.2 NE NE 200 0.15
U.S. EPA Maximum Contaminant Level 5 5 70 100 7 2
NOTES:
< = concentration was below the method detection limit
BOLD = Results reported above U.S. EPA MCL
Table 4
Soil Gas Analytical Results
Park East Apartments
1709 E. Murray Holladay Road
Millcreek, Utah
(all concentrations are expressed in micrograms per cubic meter [p.g/m3])
Sampling Location
Te
tr
a
c
hl
o
ro
e
the
n
e

(
PC
E
)

Tr
ic
hlo
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oe
the
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e

cis

1
,
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-
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2-
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1,
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Vi
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SV-1 3.14 <2.14 <1.59 <1.59 <1.59 <1.02
SV-2 2.88 <2.14 <1.59 <1.59 <1.59 <1.02
SV-3 13.2 <2.14 <1.59 <1.59 <1.59 <1.02
SV-4 <2.72 <2.14 38.6 5.43 <1.59 15.3
SV-5 11.9 <2.14 3.14 <1.59 <1.59 1.16
SV-6 6.77 <2.14 <1.59 <1.59 <1.59 <1.02
U.S. EPA Regional Screening Levels for
Residential indoor Air 11 0.48 NE NE 210 0.17
U.S. EPA Target Sub-Slab and Exterior
Soil Gas Concentration 360 16 NE NE 7,000 5.6
NOTES:
< = concentration was below the laboratory reporting limit
NE = not established
ANALYTICAL REPORT
Report Date: March 21, 2018
Chris Nolan
Wasatch Environmental, Inc.
2410 West California Ave
Salt Lake City, UT 84104
Phone: [phone]
E-mail: [e-mail]

Workorder:
Project ID:
Purchase Order:
Project Manager
-de‘iiie?bd
03/14/18
34-1807463
ÎlelD `Lab I
APT B101 1807463001
*Ct'Poce.
03/13/18
K + H Development 031318
K + H Development
Jessica Helland
;Saiitling Si e 7;..v
K + H Development
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 841 23 USA I PHONE [phone] I FAX [phone]
ALS GROUP USA, CORP. An ALS Limited Company

www.alsglobaLcom

RIGHT soLuTions I T I
Page 1 of 3 Wed, 03/21/18 12:55 PM ENVREP-V4.8
ANALYTICAL REPORT
Workorder: 34-1807463
Client: Wasatch Environmental,
Inc.
Project Manager: Jessica Helland
Analytical Results
Sample ID: APT B101
Lab ID: 1807463001
Matrix. Air
Sampling Site: K + H Development
Media: Summa 6 Liter Canister
Sampling Parameter. NA
Collected: 03/13/2018
Received: 03/14/2018
Analysis Method - EPA TO-1 5 SIM
Preparation: Mit Applicable r Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3919 (HBN: 210828)
Analyzed: 03/20/2018 16:45
Instrument ID: 5975-L
Percent Solid: NA
Report Basis: Wet

'-, ' - 'Y' i-

AnaiytP :',-,, ... ..10:0-.(ppl?) • ...
-,-h
, .. e ResUlt
.' ughpl) • RL (ppb) ., " ;_tiaiiution„.
4 .
.
>
E.:
Vinyl chloride ND <0.13 0 050 1
1,1-Dichloroethene ND <0.20 0.050 1
cis-1,2-Dichloroethene ND <0.20 0 050 1
Trichloroethene ND <0.27 0 050 1
Tetrachloroethene ND <0.34 0.050 1
Analysis MOW - EPA TO-15 SIM
Preparation: Not Applicable Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3919 (HBN: 210828)
Analyzed: 03/20/2018 17:30 .
Instrument ID: 5975-L
Perceni Solid: NA
Report Basis: Wet
;., .., . 1, - A „Result (ppb)
, Result-,
cug/nV- RL (ppb) 2.:4Pilution
„
_ . ua -.
trans-1,2-Dichloroethene 19 74 0 50 10 E
Report Authorization (/S/ is an electronic signature that complies with 21 CFR Part 11)
Method Analyst Peer Review
EPA TO-15 SIM /S/ Lisa M. Reid
03/21/2018 11:51
/S/ Thomas J. Masoian
03/21/2018 12:52
Laboratory Contact Information
ALS Environmental Phone: [phone]
960 W Levoy Drive Email. [e-mail]
Salt Lake City, Utah 84123 Web: www.alsslc.com
Page 2 of 3 Wed, 03/21/18 12.55 PM ENVREP-V4.8
ANALYTICAL REPORT
Workorder: 34-1807463
Client: Wasatch Environmental,
Inc.
Project Manager: Jessica HeIland
General Lab Comments
The results provided in this report relate only to the items tested.
Samples were received in acceptable condition unless otherwise noted.
Samples have not been blank corrected unless otherwise noted.
This test report shall not be reproduced, except in full, without written approval of ALS.
ALS provides professional analytical services for all samples submitted ALS is not in a position to interpret the data and
assumes no responsibility for the quality of the samples submitted.
All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted.
ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS
conforms to accreditation requirements and is applied to all analytical testing performed by ALS. The following table lists testing
sector, accreditation body, accreditation number and website. Please contact these accrediting bodies or your ALS project
manager for the current scope of accreditation that applies to your analytical testing.
Testing Sector Accreditation Body Certificate Website
Number
Environmental PJLA (DoD ELAP)
Utah (TNI)
Nevada
Oklahoma
Iowa
Result Symbol Definitions
MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity.
RL = Reporting Limit, a verified value of method/media/instrument sensitivity.
CRDL = Contract Required Detection Limit
Reg Limit = Regulatory Limit.
ND = Not Detected, testing result not detected above the MDL or RL.
< This testing result is less than the numerical value.
** No result could be reported, see sample comments for details.
Qualifier Symbol Definitions
U = Qualifier indicates that the analyte was not detected above the MDL.
J = Qualifier Indicates that the analyte value is between the MDL and the RL. It is also used to indicate an estimated value for
tentatively identified compounds in mass spectrometry where a 1 1 response is assumed.
B = Qualifier indicates that the analyte was detected in the blank
E = Qualifier indicates that the analyte result exceeds calibration range.
P = Qualifier indicates that the RPD between the two columns is greater than 40%.
Page 3 of 3 Wed, 03/21/18 12.55 PM ENVREP-V4.8
ANALYTICAL REPORT
Report Date: April 17, 2018
Chris Nolan
Wasatch Environmental, Inc.
2410 West California Ave
Salt Lake City, UT 84104
Phone: [phone]
E-mail: [e-mail]
Workorder: 34-1810211
Project ID: Indoor Air Sampling
Purchase Order: Indoor Sampling
Project Manager Jessica Helland
• i'.4iiAlfia'ae ID 'MY ID ÌÌtDaté eceivéDai Špíing ife
Building 6-Common 1810211001 NA 04/11/18 Indoor Sampling
Building C-South 1810211002 NA 04/11/18 Indoor Sampling
Building C-North 1810211003 NA 04/11/18 Indoor Sampling
Background 1810211004 NA 04/11/18 Indoor Sampling
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 841 23 USA PHONE [phone] FAX [phone]
ALS GROUP USA, CORP. An ALS Limited Company

www.alsglobalcom

RIOHT SOLUTICHIS
Page 1 of 5 Tue, 04/17/18 2.55 PM ENVREP-V4.8
ANALYTICAL REPORT
Workorder: 34-1810211
Client: Wasatch Environmental,
Inc.
Project Manager: Jessica Helland
Analytical Results
Sample ID: Building B-Common
Lab ID: 1810211001
Matrix: Air
Sampling Site: Indoor Sampling
Media. Summa 6 Liter Canister
Sampling Parameter. NA
Received: 04/11/2018
AnalysisiMeIhrtd - EPA TO-15 SIM
Preparation: Not Applicable
•
AnalySia: EPA TO-15 SIM, Air
Batch: IV0A/3956 (HBN: 212799)
Analyzed: 04/12/2018 15:12
Instrument ID: 5975-L
Percent Solid: NA
Report Basis: Wet
-t• ,.:
Analyte ,_ ':f suit (pp.13)-,,,
1R.6$174 s', ;‘, 6i61m3 "RL2ipph - 'Oilution: .: ' .: 74„ „upt. , '‘ - • :2
Vinyl chloride ND <0.13 0 050 1
1,1-Dichloroethene ND <0 20 0.050 1
cis-1,2-Dichloroethene ND <0 20 0.050 1
Tnchloroethene ND <0.27 0 050 1
Tetrachloroethene ND <0.34 0 050 1
APalysiS Method - EPA TO,15 SIM
Preparation: Not Applicable Analysis: EPA TO-15 SIM, Air
Batch: IV0N3956 (HBN: 212799)
Analyzed: 04/13/2018 13:30
Instrument ID: 5975-L
Percent Sad: NA
Report Basis: Wet -v- t 2.-
Alla! ' „ ' ...... -. :tac,•;•Reult (pph) ,!„
-.: „ ReSult . ‘,
, „ (pg/tn3) ' '..)3.1_ (ppb)',›, Pilutiok„.•; .
' -

',;F'• up! "" 4 •;!
trans-1,2-Dichloroethene 1.8 7.0 0.50 10
Sample ID: Building C-South
Lab ID: 1810211002
Matrix: Air
Sampling Site: Indoor Sampling
Media: Summa 6 Liter Canister
Sampling Parameter: NA
Received: 04/11/2018
AnalieiS-Method , EPA TO-15 SIM w....-• Thele
Preparation; Not Applicable Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3956 (1-IBN: 212799)
Analyzed: 04/12/2018 16:01
Instrument ID: 5975-L
Percent Solid: NA
Report Basis: Wet . ,; .1,_ , , • 4`""-" ' ---'- . Appl e , _ .,,=•.,.,,, • — ,? esutt (ppb)
Rettilt e • •-,. ; 4
(P0,11113) y., 4;:ftl- (ppb) •, ,Pilptiop,,,, . ,6.. .

_ •ipz • ' uW,, i:,.
Vinyl chloride ND <0.13 0.050 1
1,1-Dichloroethene ND <0.20 0.050 1
cis-1,2-Dichloroethene ND <0 20 0.050 1
Trichloroethene ND <0.27 0.050 1
Tetrachloroethene ND <0.34 0.050 1
Analysis MethAd - EPA TO-15 SIM
Preparation: Not Applicable
•
Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3956 (HBN: 212799)
Analyzed: 04/13/2018 14:17
Instrument ID: 5975-L
Percent Solid: NA
Report Basis: Wet
— • . lq
4PaNte ' , ii At.). ,-,,,, Etw4(0104) '‘ .- :3
- Result ..
(ug4r0 ;. .. L (ppb) = Outipp ' , , mit , ,,
trans-1,2-Dichloroethene 8.3 33 0 50 10
Page 2 of 5 Tue, 04/17/18 255 PM ENVREP-V4 8
ANALYTICAL REPORT
Workorder: 34-1810211
Client: Wasatch Environmental,
Inc.
Project Manager: Jessica Helland
Analytical Results
Sample ID: Building C-North
Lab ID: 1810211003
Matrix: Air
Sampling Site. Indoor sampling
Media: Summa 6 Liter Canister
Sampling Parameter: NA
Received: 04/11/2018
Analysis Method - EPA TO-15 SIM la, Preparation: Not Applicable • Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3956 (HBN: 212799)
Analyzed: 04/12/2018 16:51 •
instrument ID: 5975-L
• Percent Solid: NA
•Report Basis: Wet
I. . Anal e ,•,i '‘.
, -1142 :1011:.7,11 'Iv ,,, -'.5,4454: V Result •
esult,(ppb) k- (ug/M3 RL (01)) Dilytipli•
-
, - '-:- u.A ,
Vinyl chloride ND <0.13 0.050 1
1,1-Dichloroethene ND <0.20 0.050 1
cis-1,2-Dichloroethene ND <0.20 0.050 1
Trichloroethene ND <0.27 0.050 1
Tetrachloroethene ND <0.34 0.050 1
Analysis Methp,d - EPA TO-15 SIM
•Preparation: Not Applicable
,
Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3956 (HBN. 212799)
Analyzed: 04/13/2018 15:03
Instrument ID: 5975-L
, Percent Solid: niA
RePort Basis: Wet
,Aftalyto - . „,•
„ , • . ? . : , "Ik*U4';- " ' ';

osult•(ppb) • -,,(uglni , - ,R,L (ppb) 9i1,utiori
,.,
1,'' ua t )x.
trans-1,2-Dichloroethene 6.6 26 0 50 10
Sample ID: Background
Lab ID: 1810211004
Matrix: Air
Sampling Site: Indoor Sampling
Media: Summa 6 Liter Canister
Sampling Parameter: NA
Received: 04/11/2018
Analysts Metlipd -EPA TO-15 SIM
Preparation: Not Applicable
•
Analysis: EPA TO-15 SIM, Air
Batch: IVOA/3956 (HBN: 212799)
Analyzed: 04/12/2018 17:41
Instrument ID: 5975-L
Percent Solid: NA
Report Bašis: Wet
- p -
Anal e v. ..,
•, , ' ."
esultIpp4)
- '' ' FkO„Oit ''
(ug/tn!) , , 12L. (Nib) ',4: Ditutiop .., 0013
Vinyl chloride ND <0.13 0.050 1
1,1-Dichloroethene ND <0.20 0.050 1
trans-1,2-Dichloroethene 0.18 0.71 0.050 1
cis-1,2-Dichloroethene ND <0.20 0.050 1
Trichloroethene ND <0.27 0 050 1
Tetrachloroethene ND <0.34 0.050 1
Report Authorization (lS/ is an electronic signature that complies with 21 CFR Part 11)
Method Analffit Peer Review
EPA TO-15 SIM /S/ Lisa M. Reid
04/16/2018 15:02
/S/ Benson Boy
04/17/2018 14:48
Page 3 of 5 Tue, 04/17/18 2 55 PM ENVREP-V4 8
ANALYTICAL REPORT
Workorder: 34-1810211
Client: Wasatch Environmental,
lnc.
Project Manager: Jessica Helland
Laboratory Contact Information
ALS Environmental Phone: [phone]
960 W Levoy Drive Email alslt [e-mail]
Salt Lake City, Utah 84123 Web: www.alsslc.com
General Lab Comments
The results provided in this report relate only to the items tested.
Samples were received in acceptable condition unless otherwise noted
Samples have not been blank corrected unless otherwise noted.
This test report shall not be reproduced, except in full, without written approval of ALS
ALS provides professional analytical services for all samples submitted. ALS is not in a position to interpret the data and
assumes no responsibility for the quality of the samples submitted.
All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted
ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS
conforms to accreditation requirements and is applied to all analytical testing performed by ALS The following table lists testing
sector, accreditation body, accreditation number and website. Please contact these accrediting bodies or your ALS project
manager for the current scope of accreditation that applies to your analytical testing.
Testing Sector Accreditation Body Certificate Website
Number
Environmental PJLA (DoD ELAP)
Utah (TNI)
Nevada
Oklahoma
Iowa
Page 4 of 5 Tue, 04/17/18 2 55 PM ENVREP-V4.8
ANALYTICAL REPORT
Workorder: 34-1810211
Client: Wasatch Environmental,
inc.
Project Manager: Jessica Helland
Result Symbol Definitions
MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity.
RL = Reporting Limit, a verified value of method/media/instrument sensitivity
CRDL = Contract Required Detection Limit
Reg. Limit = Regulatory Limit.
ND = Not Detected, testing result not detected above the MDL or RL
< This testing result is less than the numerical value.
** No result could be reported, see sample comments for details.
Qualifier Symbol Definitions
U = Qualifier indicates that the analyte was not detected above the MDL.
J = Qualifier Indicates that the analyte value is between the MDL and the RL. It is also used to indicate an estimated value for
tentatively identified compounds in mass spectrometry where a 1 1 response is assumed
B = Qualifier indicates that the analyte was detected in the blank
E = Qualifier indicates that the analyte result exceeds calibration range.
P = Qualifier indicates that the RPD between the two columns is greater than 40%.
Page 5 of 5 Tue, 04/17/18 2:55 PM ENVREP-V4 8
ANALYTICAL REPORT
Report Date: April 24, 2018
Chris Nolan
Wasatch Environmental, Inc.
2410 West California Ave
Salt Lake City, UT 84104
Phone: [phone]
E-mail: [e-mail]
Workorder:
Project ID:
Purchase Order:
Project Manager
34-1810970
Indoor Sampling 041818
2276-001A
Jessica Helland
14.0.101.i , 6,cpare Date - 'Šarnpling
Apart-C + 106 1810970001 04/18/18 04/18/18 Indoor Sampling
ADDRESS 960 West LeVoy Drive, Salt Lake City, Utah, 841 23 USA 1 PHONE [phone] I FAX [phone]
ALS GROUP USA, CORP. An ALS Limited Company
www.alsglobal.com
RIMHT SOLUTIOrIS i .
Page 1 of 3 Tue, 04/24/18 1:57 PM ENVREP-V4.8
ANALYTICAL REPORT
Workorder: 34-1810970
Client: Wasatch Environmental,
Inc.
Project Manager: Jessica He!land
Analytical Results
Sample ID: Apart-C + 106
Lab ID: 1810970001
Matrix: Air
Sampling Site: Indoor Sampling
Media: Summa 6 Liter Canister
Sampling Parameter. Air Volume 6 L
Collected: 04/18/2018
Received: 04/18/2018
Analysis Method - EPA TO-15 SIM
Preparation: Not Applicable Analysis: EPA TO-15 SIM, Air
Batch: IV0A/3967 (HBN: 213420)
Analyzed: 04/23/2018 19:50
Instrument ID: 5975-L
Percent Solid: NA
- Report Basis: Wet
Analyte 1,' ,?, P., -..
'
:;f4es,41t (PPP)
I
';
1:
„
„ I- Result 4 - 4 ugtrtil : (pphri' , g.),Ilutior
''" R SI.
e • , ...
ual
•••
Vinyl chloride ND <0.13 0.050 1
1,1-Dichloroethene ND <0.20 0.050 1
cis-1,2-Dichloroethene ND <0 20 0.050 1
Trichloroethene ND <0.27 0.050 1
Tetrachloroethene ND <0 34 0.050 1
Analysis Methpd - EPA TO-15 SJM
Preparation: Not Applicable Analysis: EPA TO-15 SIM, Air
Analyzed: 04/24/2018 09:54 -
1
‘.
3atch: IVOA/3967 (HBN: 213420)
Result ,

: ,
Instrument ID: 5975-L
Percent Solid: NA
'Report Basis: Wet
,i'

‘,ArtOlytq: : ..-.: -A ..... •Rosult (p.0): , r ,
- .f..-
(iig/ir3) 43.1. (ppb) , .Pilutiok
' ! . ? .
_ " ual--
trans-1,2-Dichloroethene 10 42 0 50 10 E
Comments
Workorder: 1810970
Compound flagged with an "E" qualifier is considered to be an estimated value.
Report Authorization (/S/ is an electronic signature that complies with 21 CFR Part 11)
:Method Analyst Peer Review
EPA TO-15 SIM /S/ Benson Boy /S/ Lisa M. Reid
04/24/2018 12 23 04/24/2018 13:39
Laboratory Contact Information
ALS Environmental Phone [phone]
960 W Levoy Drive Email: [e-mail]
Salt Lake City, Utah 84123 Web: www.alsslc.com
Page 2 of 3 Tue, 04/24/18 1:57 PM ENVREP-V4.8
ANALYTICAL REPORT
Workorder: 34-1810970
Client: Wasatch Environmental,
lnc.
Project Manager: Jessica He!land
General Lab Comments
The results provided in this report relate only to the items tested.
Samples were received in acceptable condition unless otherwise noted
Samples have not been blank corrected unless otherwise noted
This test report shall not be reproduced, except in full, without written approval of ALS.
ALS provides professional analytical services for all samples submitted. ALS is not in a position to interpret the data and
assumes no responsibility for the quality of the samples submitted.
All quality control samples processed with the samples in this report yielded acceptable results unless otherwise noted.
ALS is accredited for specific fields of testing (scopes) in the following testing sectors. The quality system implemented at ALS
conforms to accreditation requirements and is applied to all analytical testing performed by ALS. The following table lists testing
sector, accreditation body, accreditation number and website Please contact these accrediting bodies or your ALS project
manager for the current scope of accreditation that applies to your analytical testing.
Testing Sector Accreditation Body Certificate Website
Number
Environmental PJLA (DoD ELAP)
Utah (TNI)
Nevada
Oklahoma
Iowa
Result Symbol Definitions
MDL = Method Detection Limit, a statistical estimate of method/media/instrument sensitivity.
RL = Reporting Limit, a verified value of method/media/instrument sensitivity.
CRDL = Contract Required Detection Limit
Reg Limit = Regulatory Limit.
ND = Not Detected, testing result not detected above the MDL or RL.
< This testing result is less than the numerical value.
** No result could be reported, see sample comments for details.
Qualifier Symbol Definitions
U = Qualifier indicates that the analyte was not detected above the MDL
J = Qualifier Indicates that the analyte value is between the MDL and the RL It is also used to indicate an estimated value for
tentatively identified compounds in mass spectrometry where a 1:1 response is assumed.
B = Qualifier indicates that the analyte was detected in the blank.
E = Qualifier indicates that the analyte result exceeds calibration range.
P = Qualifier indicates that the RPD between the two columns is greater than 40%.
Page 3 of 3 Tue, 04/24/18 1 57 PM ENVREP-V4 8
,
*ESC ANALYTICAL REPORT
May 03, 2018
myESC
" C.
065 Lebanon Rd, Moiu,rfaluiftet, TN 37122 615-758-5858 800-765.859 www.esciabsciences.com
of '
Wasatch Environmental
Sample Delivery Group:
Samples Received:
Project Number:
Description:
Report To:
L989596
04/28/2018
2276-001A
Sub Slab Soil Gas
Christopher Nolan
2410 West California Avenue
Salt Lake City, UT 84104
Entire Report Reviewed By: VI-10
John Hawkins
Technical Service Representative
Results relate only to the items tested or calibrated and are reported as rounded values This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable. sampling conducted by ESC is performed per guidance provided in laboratory standard operating procedures 060302, 060303. and 060304.
1Cp
o Sc
8 Al
7 GI
6 Qc
5
Sr
3 SS
4 Cn
TABLE OF CONTENTS ONE LAB. NATIONWIDE. 40
Cp: Cover Page 1
Tc: Table of Contents 2
Ss: Sample Summary 3
Cn: Case Narrative 4
Sr: Sample Results 5
1 L989596-01 5
2 L989596-02 6
3 L989596-03 7
4 L989596-04 8
Qc: Quality Control Summary 9
Volatile Organic Compounds (MS) by Method TO-15 9
GI: Glossary of Terms 11
Al: Accreditations & Locations 12
Sc: Sample Chain of Custody 13
ACCOUNT. PROJECT: SDG DATE/TIME. PAGE
Wasatch Environmental 2276-001A L989596 05/03/181218 2 of 14
1 Cp
2 Tc
9 SC
8 Al
GI
6 Qc
4 Cn
5 Sr
SAMPLE SUMMARY ONE LAB NATIONWIDE.
1 L989596-01 Air
Collected by
Chris Nolan
Collected date/time
04/27/18 09.45
Received date/time
04/28/18 0845
Method
„ .
Volatile Organic Compounds (MS) by Method TO-15
Batch
—WG110436/
Dilution Preparation
dateltime
04/30/18 22:07
Analysis
dateltime
04/30/18 22 07
Analyst
MBF— —
Collected by Collected date/time Received date/time
2 L989596-02 Air Chris Nolan 04/27/18 09:50 04/28/18 08:45
Method Batch Dilution Preparation
date/tIme
Analysis
date/time
Analyst
Volatile Organic Compounds (MS) by Method TO-15 WG1104867 2 04/30/18 22.52 04/30/18 22.52 MBF
Collected by Collected date/time Received date/time
3 L989596-03 Air Chris Nolan 04/27/18 10'00 04/28/18 08:45
Method Batch Dilution Preparation
date/time
Analysis
date/time
Analyst
Volatile Organic Compounds (MS) by Method TO-15 WG1104867 04/30/18 23 36 04/30/18 23.36 MBF
Collected by Collected date/time Received date/time
4 L989596-04 Air Chris Nolan 04/27/18 10.05 04/28/18 08:45
Method Batch Dilution Preparation
date/time
Analysis
date/time
Analyst
, Volatile Organic Compounds (MS) by Method TO-15 WG1104867 2 05/01/18 00 21 05/01/18 0.0:21 MBF
Volatile Organic Compounds (MS) by Method TO-15 WG1105325 10 05/01/18 19•40 05/01/18 19:40 BG
ACCOUNT' PROJECT: SDG* DATE/TIME: PAGE
Wasatch Environmental 2276-001A L989596 05/03/18 12 18 3 of 14
3 Ss
Cp
2 Tc
Sc
8 Al
7 GI
5 Sr
6 Qc
CASE NARRATIVE ONE LAB. NATIONWIDE. .410
All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within
the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All radiochemical sample results for solids are reported on a dry weight basis with the exception of tritium, carbon-14 and radon, unless wet
weight was requested by the client. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, l affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data
have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data.
John Hawkins
Technical Service Representative
ACCOUNT: PROJECT. SDG. DATE/TIME* PAGE.
Wasatch Environmental 2276-001A L989596 05/03/181218 4 of 14
1 SAMPLE RESULTS - 01
Collected date/time: 04/27/18 09:45 L989596
Volatile Organic Compounds (MS) by Method T0-15
ONE LAB NATIONWIDE 41*
'Cp CAS # Mol. Wt. RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3 2
1,1-Dichloroethene 75-35-4 96.90 0.400 1.59 ND ND WG1104867 Tc
cis-1,2-Dichloroethene 156-59-2 96.90 0.400 1 59 ND ND WG1104867
trans-1,2-Dichloroethene 156-60-5 96 90 0 400 1 59 1 60 6.34 WG1104867 3 Ss WG1104867 Tetra chloroethylene 127-18-4 166 0.400 2.72 ND ND
Trichloroethylene 79-01-6 131 0 400 2 14 ND ND WG1104867 4 WG1104867 Vinyl chloride 75-01-4 62.50 0 400 1 02 ND ND Cn
(S)1,4-Bromofluorobenzene 460-00-4 175 60 0-140 97 3 WG1104867
6 Qc
7 GI
3 Al
9 SC
ACCOUNT: PROJECT: SDG. DATE/TIME: PAGE:
Wasatch Environmental 2276-001A L989596 05/03/181218 5 of 14
2 SAMPLE RESULTS - 02 ONE LAB. NATIONWIDE.
Collected date/time: 04/27/18 09:50
Volatile Organic Compounds (MS) by Method TO-15
L989596
Cp CAS # Mol. Wt. RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3 2
1,1-Dichloroethene 75-35-4 96.90 0.400 1 59 ND ND 2 WG1104867 Tc
cis-1,2-Dichloroethene 156-59-2 96.90 0.400 1 59 ND ND 2 WG1104867
trans-1,2-Dichloroethene 156-60-5 96.90 0 400 1 59 12 2 48 5 2 WG1104867 3 Ss WG1104867 Tetrachloroethylene 127-18-4 166 0.400 2.72 0 643 4.37 2
Trichloroethylene 79-01-6 131 0 400 2 14 ND ND 2 WG1104867 4
WG1104867 Vinyl chloride 75-01-4 62.50 0 400 1 02 ND ND 2 Cn
(S)1,4-Bromofluorobenzene 460-00-4 175 60.0-140 98 3 WG1104867
6 Qc
7 GI
3 Al
9 SC
ACCOUNT' PROJECT. SDG• DATE/TIME: PAGE
Wasatch Environmental 2276-001A L989596 05/03/1812:18 6 of 14
3 SAMPLE RESULTS - 03 ONE LAB. NATIONWDE.
Collected date/time: 04/27/18 10.00
Volatile Organic Compounds (MS) by Method TO-15
L989596
1 Cp CAS # Mol. Wt. RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ug/m3 ppbv ug/m3 2
1,1-Dichloroethene 75-35-4 96 90 0 400 1.59 ND ND 2 WG1104867 Tc
cis-1,2-Dichloroethene 156-59-2 96.90 0 400 1.59 ND ND 2. WG1104867
trans-1,2-Dichloroethene 156-60-5 96 90 0 400 1 59 20 6 81 6 2 WG1104867 3 SS W61104867 Tetrachloroethylene 127-18-4 166 0 400 2 72 ND ND 2
Trichloroethylene 79-01-6 131 0.400 2 14 ND ND 2 WG1104867 4
WG1104867 Vinyl chloride 75-01-4 62.50 0 400 1 02 1.43 3.65 2 Cn
(S)44-Bromofluorobenzene 460-00-4 175 60.0-140 95.5 WG1104867
6 Oc
7 GI
a Al
Sc
ACCOUNT: PROJECT: SDG• DATE/TIME: PAGE*
Wasatch Environmental 2276-001A L989596 05/03/181218 7 of 14
4 Cn
3 Ss
1 Cp
2 Tc
9 Sc
Al
6 Qc
7GI
4 SAMPLE RESULTS - 04
Collected date/time: 04/27/18 1005 L989596
Volatile Organic Compounds (MS) by Method TO-15
ONE LAB. NATIONWIDE
CAS # Mol. Wt. RDL1 RDL2 Result Result Qualifier Dilution Batch
Analyte ppbv ,up_rn..3._ _p_phv ug/m3
1,1-Dichloroethene 75-35-4 96.90 0 400 159 ND ND 2 WG1104867
as-1,2-Dichloroethene 156-59-2 96.90 0.400 1 59 ND ND 2 WG1104867
trans-1,2-Dichloroethene 156-60-5 96.90 2.00 7 93 120 474 10 WG1105325
Tetrachloroethylene 127-18-4 166 0 400 2.72 1.33 9.04 2 WG1104867
Trichloroethylene 79-01-6 131 0 400 2 14 ND ND 2 WG1104867
Vinyl chloride 75-01-4 62.50 0 400 1 02 ND ND 2 WG1104867
(S)Z4-Bromofluorobenzene 460-00-4 175 60.0-140 96.8 WG1104867
(S)Z4-Bromofluorobenzene 460-00-4 175 60.0-140 95 9 WG1105325
SA
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE.
Wasatch Environmental 2276-001A L989596 05/03/181218 8 of 14
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
(LCS) R3306021-1 04/30/18 08'2 5 • (LCSD) R3306021-2
Spike Amount LCS Result
04/30/18 09.10
LCSD Result LCS Rec. LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
Analyte ppbv ppbv ._.. .... ppbv % % % % , .........,.._ _ % „, ,_,..... ... , _ —3-.75 Vinyl chloride 3 94 4.00 105 107 70 0-130 1 60 25
1,1-Dichloroethene 3.75 3 97 3.95 106 105 70.0-130 0.411 25
trans-1,2-Dichloroethene 3.75 3.93 3 91 105 104 70.0-130 0.630 25
cis-1,2-Dichloroethene 3 75 4.00 3.97 107 106 70.0-130 0.959 25
Tnchloroethylene 3 75 3.94 3.91 105 104 70.0-130 0.692 25
Tetrachloroethylene 3.75 4 06 4 03 108 107 70.0-130 0.807 25
(S)1,4-Bromofluombenzene 99 8 100 60 0-140
9 SC
7 GI
Al
WG1104867
Volatile Organic Compounds (MS) by Method TO-15
Method Blank (MB)
QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE.
L989596-01,02,03,04
JO
'Cp (MB) R3306021-3 04/30/18 09.57
MB Result MB Qualifier MB MDL MB RDL 2
Analyte _ ppbv ppbv ppbv Tc
1,1-Dichloroethene
cis-1,2-Dichloroethene 0.0389 0.200 3 SS trans-1,2-Dichloroethene 0.0464 0.200
Tetrachloroethylene 0.0497 0.200 4
Trichloroethylene 0.0545 0 200 Cn
Vinyl chloride 0.0457 0 200
(S)1,4-Bromofluorobenzene 97 3 60 0-140 5 Sr
ACCOUNT. PROJECT: SDG: DATE/TIME: PAGE:
Wasatch Environmental 2276-001A L989596 05/03/181218 9 of 14
5 Sr
4 Cn
3 SS
Cp
2 Tc
9 SC
7 GI
Al
WG1105325 QUALITY CONTROL SUMMARY ONE LAB. NATIONWIDE Ilk
VolatHe Organic Compounds (MS) by Method TO-15 1989596-04
(MB) R3306297-1 05/01/18 09:50
MB Resu(t MB Qualifier MB MDL MB RDL
Analyte ppbv ppbv ppbv
trans-1,2-Dichloroethene U 0.0464 0 200
(S)1,4-Bromofluorobenzene .92.2 60 0-140
(LCS) R3306297-2 05/01/18 11.53 • (LCSD) R3306297-3 05/01/18 1237
Spike Amount LCS Result LCSD Result LCS Rec.
Ana lyte ppbv ppbv ppbv
trans-1,2-Dichloroethene 3 75 3.70 3.98 98.7
(S)1,4-Bromaluorobenzene 99 5
LCSD Rec. Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits
% % % % —
106 —70.6-130-- 7 37 25
101 60.0-140
Method Blank (MB)
Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD)
ACCOUNT: PROJECT. SDG. DATE/TIME: PAGE:
Wasatch Environmental 2276-001A L989596 05/03/1812:18 10 of 14
6 Qc
5 Sr
4 Cn
3 Ss
2 Tc
9 SC
Cp
7 GI
8 Al
GLOSSARY OF TERMS ONE LAB. NATIONWIDE. AO
Guide to Reading and Understanding Your Laboratory Report
The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative
Abbreviations and Definitions
MDL
ND
RDL
Rec.
RPD
SDG
(S)
Analyte
Dilution
Limits
Qualifier
Result
Case Narrative (Cn)
Quality Control Summary (Qc)
Sample Chain of Custody (Sc)
Sample Results (Sr)
Sample Summary (Ss)
Qualifier
Method Detection Limit.
Not detected at the Reporting Limit (or MDL where applicable).
Reported Detection Limit.
Recovery.
Relative Percent Difference
Sample Delivery Group.
Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate, used to evaluate analytical efficiency by measuring recovery Surrogates are not expected to be detected in all environmental media.
Not detected at the Reporting Limit (or MDL where applicable).
The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported
If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor.
These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges
This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable.
The actual analytical final result (corrected for any sample specific characteristics) reported for your sample If there was no measurable result returned for a specific analyte, the result in this column may state "ND" (Not Detected) or "BDL" (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte.
A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report
This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples These analyses are not being performed on your samples typically, but on laboratory generated material.
This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis
This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported.
This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis.
Description
The remainder of this page intentionally left blank, there are no qualifiers applied to this SDG.
ACCOUNT. PROJECT: SDG, DATE/TIME: PAGE
Wasatch Environmental 2276-001A L989596 05/03/18 12 18 11 of 14
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ACCREDITATIONS & LOCATIONS ONE LAB. NATIONWIDE ilk
ESC Lab Sciences is the only environmental laboratory accredited/certified to support your work nationwide from one location One phone call, one point of contact, one laboratory. No other lab
is as accessible or prepared to handle your needs throughout the country. Our capacity and capability from our single location laboratory is comparable to the collective totals of the network
laboratories in our industry. The most significant benefit to our one location design is the design of our laboratory campus The model is conducive to accelerated productivity, decreasing turn-around time, and preventing cross contamination, thus protecting sample integrity. Our focus on premium quality and prompt service allows us to be YOUR LAB OF CHOICE. *Not all certifications held by the laboratory are applicable to the results reported in the attached report *Accreditation is only applicable to the test methods specified on each scope of accreditation held by ESC Lab Sciences.
State Accreditations
Alabama 40660 _
A laska 17-026
Arizona AZ0612
Arkansas 88-0469
California 2932
Colorado

TN00003 _
Connecticut PH-0197
Florida _ E87487
Georgia_ NELAP
Georgia _923
Idaho TN00003 „ _
Illinois 200008 _ Indiana C-TN-01 _— Iowa 364
Kansas E-10277
Kentucky i 6 90010 _ Kentucky 2 16
Louisiana A130792
Louisiana LA180010.,
Maine TN0002
Maryland 324
Massachusetts M-TN003 _ Michigan 9958
Minnesota 047-999-395
Mississippu TN00003
Missouri 340
Montana CERT0086
Nebraska
Nevada „..,
New Hampshire
New Jersey-NELAP
New Mexico . „ New York „
North Carolina
North Carolina
North Carolina
North Dakota
OhiotVAP
Oklahoma
91:99911_
Pen nsylvanla
Rhode Island
South Carolina - „
South Dakota
Tennessee 4
Texas
Texas 5
Utah
Vermont _ Virginia
Washington
West V!rginia
Wisconsin
Wyoming
NE-OS-15-05
TN-03-2002-34
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TN002
n/a.
11742_
EnV3-75
DW21704
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2006
T104704245-17-14
LAB0152
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233
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Third Party Federal Accreditations
A2LA7 ISO 17025. 1461 01 AIHA-LAP,LLC EMLAP 100789
A2LA - ISO 17025 5 1461 02 DOD 1461.01
Canada 1461.01 USDA P330-15-00234
FPA7Creito TN00003
1 Drinking Water 2 Underground Storage Tanks 3 Aquatic Toxicity 4 Chemical/Microbiological 5 Mold 6 Wastewater n/a Accreditation not applicable
Our Locations
ESC Lab Sciences has sixty-four client support centers that provide sample pickup and/or the delivery of sampling supplies. If you would like assistance from one of our support offices, please contact our main office. ESC Lab Sciences performs all testing at our central laboratory.
ACCOUNT: PROJECT: SDG: DATE/TIME: PAGE.
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M ORANDUM
DATE June 17, 2014
SUBJECT: Removal of the trans-1,2-Dichloroethylene (CAS1N 156-60-5) Provisional Peer-Reviewed
Toxicity Value (PPRTV) aw:ssment from the Electronic Library
FROM: Scott Wessel kamper
Director, aiperfund Health Rsk Technical Support Inter (STS
EPA/ ORD NCEA
TO: Michele Elurgess (0S/VER=TI)
Lynn Rowers (NCEA)
Teresa thannon (NCEA)
The Rle
It was brought to the attention of the STMthat there is an inconsistency in the condusions
regarding the derivation of a reference concentration (Rq for trans-1,2-Dichloroethylene (DM
between the 2006 PPM assessment and the 2010 IRSassessment
(http://www.epa.gov/iritoxreviews/0418tr.pdf) for this chemical. The 2006 PPRIVaqcPssment derived
a chronic p-RCof 0.06 mg/ m3 based on pulmonary and liver effects observed in the prindpal study by
Freundt et al. (1977). No subchronic p-RCwas derived. The 2010 IRSassessment found Freundt et al.
(1977), a study by the National Toxicology Program (NIP, 2002), and an unpublished study by DuPont
(1998) to be insuffident to support derivation of an RCvalue for trans-1,2-DCE Thus, there appears to
be a fundamental difference in how the prindpal study and critical effect(s) used to derive the chronic p-
RC in the 2006 PFRIV assessment were evaluated compared to what was more recently done by IRS It
is important to note that there are some differences in the respective decision-making processes for
developing FPRTV and IRSassessments spedfically with the IRSProgram having a more extensive
review process (e.g., agency and interagency review steps, a public comment period, etc.) than that
utilized for developing PFRTV assessments.
Fbrtinent information from the 2010 lIRISToxicological Review on trans-1,2-DCEthat outlines
why the Freundt et al. (1977) study was discounted and no RCvalue was derived is excerpted and
italicized below:
"The finding of lung effects in the Freundt et al. (1977) study is difficult to interpret as t his study
is the only report of lung pathology in animals exposed to trans-1,2-DM a small number of animals were
examined, several of the controls also developed this effed, and the upper respiratory tract was not
examined for pathology."
"For each of the exposure durations, t here was no statistically significant difference between the
controls and the exposed groups with resped to the inddence of liver effects (fat accumulation). In
general, however, the inddence and severity of fat accumulation increased with increasing exposure
duration. Although Freundt et al. (1977) reported histopathologic changes in the liver of rats, the DuPont
(1998) study did not corroborate the Freundt et al. (1977) study findings. DuFbnt (1998) reported
relatively small increases in relative and absolute liver weight (1-8%) and no gross or microscopic
changes of the liver attributable to trans-1,2-DCE at an exposure concentration 20-fold higher than that
1
used in the Freundt et al. (1977) study. NTP (2002a) similarly found no histopathologic changes in the
liver when trans-1,2-DCEwas administered for 90 days by the oral route at dietary conœntrations as
high as 50,000 ppm. In light of the results of DuPont (1998) and NIP (2002a), it is difficult to explain the
liver findings in the single-exposure conœntrat ion study by Freundt et al. (1977). Gven the limitations of
the Freundt et al. (1977) study (i.e., small sample size, use of only one exposure concentration, and
observation of fatty aocumulat ion in the liver lobules and Kupffer cells in control animals at some
exposure durations) and lack of corroboration from other studies, the Freundt et al. (1977) study was not
used as the basis for derMng an HCfor trans-1,2-DCE"
"In summary, the available inhalation data from DuPont (1998) and Freundt et al. (1977) were
considered insufficient to support reference value derivation and, therefore, an RiCfor trans-1,2-DCEwas
not derived."
arrent practice by the PFR1V Rogram states that once an IR1Sassessrnent becomes available
for any given chemical, the PPRTV assessment for that chemical is removed from the PPRTV elect ronic
library. Thus, based on this practice and the rationale outlined above, it is recommended that the
conclusions presented in the InSassessment for trans-1,2-DCE be prewntly adhered to, and the trans-
1,2-DCEFFRN acecssment has been removed from the electronic library. Any additional questions
regarding trans-1,2-DCE should be directed to the IRS Hotl ine at [phone] or
htt p://www.epa.govi i ri cont act_hot I i ne. ht m.
References:
Freundt, KJ, GP. Uebaldt and E Ueberwirth. '1977. Toxidty studies on trans-1,2-dichloroethylene.
Toxicology. 7: 141-153.
NTP (2002). NIP technical report on the toxidty studies of trans-1,2-dichloroethylene (CASNo. 156-60-
5) administered in microcapsules in feed to P3/14/N rats and Bann mice. FUblic Health rvice, U.S
Department of Health and Human rviœs; NTP1R55. Available from the National Institute of
Environmental Health Sciences, Research Triangle Park, NC and online at
http://ntp.niehs.nih.gov/nto/htdocsIST rots/tox055.pdf
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