TETRATECH

We are in the process of ensuring
this document is accessible to all
audiences. If you need assistance
accessing this document, or any
material on the EPA East Palestine,
Ohio emergency response web

August 10, 2023

pages, please contact the Region 5
Public Information Officer on-call
at: R5_EastPalestine@epa.gov

Mr. Josh Peters
On-Scene Coordinator

U.S. Environmental Protection Agency, Region 5
Superfund and Emergency Management Division

2565 Plymouth Road
Ann Arbor, MI 48105

Subject:	Data Validation Reports

E Palestine Site - ER

EPA Contract No.: 68HE0519D0005

Task Order/Task Order Line Item No.: 68HE0520F0032/0001EB201
Document Tracking No. 1985

Dear Mr. Peters:

Tetra Tech, Inc. (Tetra Tech) is submitting this data validation report for sixty air samples including seven
field blanks and four duplicate samples were collected at the E Palestine Site. The samples were collected on
June 8 and 9, 2023, and were analyzed for acrylates by Eurofins Analytics, LLC at their Ashland, Virginia
laboratory. The final laboratory data packages were received on June 22, 2023.

Analytical data were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan,

East Palestine Train Derailment Site, East Palestine, Columbiana County, Ohio, EPA Region 5, Revision 3
(April 2023), the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment and Response
Team (START V), EPA Region 5, Revision 4 (August 2022), and the National Functional Guidelines (NFG) for
Organic Superfund Methods Data Review (November 2020).

No rejection of results was required for this data package. The results may be used as qualified based on this
validation effort.

If you have any questions regarding these data validation reports, please feel free to contact me.

Sincerely,

Tom
Hahne

Quality Reviewer

Digitally signed
by Tom Hahne
Date: 2023.08.10
14:49:59-05'00'

Enclosure

cc: K

Karl Schultz, Tetra Tech Program Manager
Dustin Grams, Tetra Tech Project Manager

Mayra Arroyo Ortiz, Tetra Tech Project Document Control Coordinator
TO-TOLIN File

Tetra Tech, Inc.

1 South Wacker Dr. Suite 3700, Chicago, IL 60606
Tel 312.201.7700 | Fax 312.201.0031
vwvw.tetratech.com


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ATTACHMENT

DATA VALIDATION REPORTS
EUROFINS ANALYTICS, LLC REPORT NOS. B163-115, B163-116,

B163-117, AND B163-124


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Site Name

E Palestine Site - ER



TO/TOLIN No.

68HE0520F0032/000IEB201

Document Tracking No.

1985a

Laboratory Report No.

B163-115

Laboratory

Eurofins Analytics, LLC - Ashland, VA

Analyses

2-Ethylhexyl acrylate and n-butyl acrylate

by

aboratory standard operating procedure (SOP) IHGC-P029

Samples and Matrix

Ten air samples, including one field blank and one field duplicate pair

Collection Date(s)

June 8, 2023

Field Duplicate Pairs

EPD-ST-8H-WA-04-060823-2/EPD-ST-8H-WA-44-060823-2

Field QC Blanks

EPD-ST-FB-060823-2

INTRODUCTION

This checklist summarizes the Stage 2A validation performed on the subject laboratory report, in accordance with the U.S. Environmental
Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data
were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan East Palestine Train Derailment Site East Palestine,
Columbiana County, Ohio, EPA Region 5, Revision 3 (April 2023), the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment
and Response Team (START V), EPA Region 5, Revision 4 (August 2022), and the EPA National Functional Guidelines (NFG)for Organic Superfund
Methods Data Review (November 2020).

OVERALL EVALUATION

No rejection of results was required for this data package. The results may be used as qualified based on this validation effort.

Data completeness:

Within
Criteria

Exceedance/Notes

Y

The report was amended to correct the value for volume for sample EPD-ST-8H-WA-05-060823-2 from "23.35" to "23.52".

The results for the field blank were reported in units of micrograms (ng) while the other sample results were reported in units of
Hg, milligram per cubic meter (mg/m3), and parts per million (ppm) (volume) in the laboratory report and only ppm in the
electronic data deliverable (EDD).

TETRA TECH

Page 1 of 4


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Data completeness (continued):

Within
Criteria

Exceedance/Notes

Y

The sample analysis time was reported as a default value of 12 AM or 00:00 hours for the LCSD in the analysis date field. The
analysis date was correct. The sample analysis time for the LCSD was not required for the EDD; therefore, this value was not
manually revised.

The laboratory report uses method reference "Rohm & Haas IH9805" (referenced to the AIHA certification as IHGC-P029) or "IHGC-
P029" interchangeably.

Sample preservation, receipt, and holding times:

Within
Criteria

Exceedance/Notes

N

Holding time limits were exceeded in the extraction of the samples. All sample results were non-detect, and therefore qualified as
non-detect with possible low bias (flagged UJ).

Method blanks:

Within
Criteria

Exceedance/Notes

Y



Field blanks:

Within
Criteria

Exceedance/Notes

Y



Surrogates and labeled compounds:

Within
Criteria

Exceedance/Notes

NA



TETRA TECH

Page 2 of 4


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

MS/MSDs:

Within
Criteria

Exceedance/Notes

NA



Laboratory duplicates:

Within
Criteria

Exceedance/Notes

NA



Field duplicates:

Within
Criteria

Exceedance/Notes

Y



LCSs/LCSDs:

Within
Criteria

Exceedance/Notes

N

The recoveries of 2-Ethylhexyl acrylate in the LCS and LCSD were above the laboratory control limits. The sample results are non-
detect and were therefore not qualified.

Sample dilutions:

Within
Criteria

Exceedance/Notes

NA



Re-extraction and reanalysis:

Within
Criteria

Exceedance/Notes

NA



TETRA TECH

Page 3 of 4


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

MDLs/RLs:

Within
Criteria

Exceedance/Notes

Y

Method detection limits were not reported. Non-detect sample results are reported as less than the reporting limit in the
laboratory report and at the reporting limit (flagged U) in the EDD and attached qualified data table.

Tentatively identified compounds:

Within
Criteria

Exceedance/Notes

NA



Other [none]:

Within
Criteria

Exceedance/Notes

NA



Overall Qualifications:

See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The following is a list of qualifiers and
definitions that may be used for the validation of this data package:

J

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.

J+

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased high.

J-

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased low.

NJ

The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate
concentration of the analyte in the sample.

R

The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not
be present in the sample.

U

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).

UJ

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit), which is considered approximate
due to deficiencies in one or more quality control criteria.

TETRA TECH

Page 4 of 4


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E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY
EUROFINS ANALYTICS REPORT NO. B163-115

Sample ID	Method Cas. No. Analyte	Lab_Result Lab_Qual RL Units Val_Result Val_Qual

EPD-ST-8H-DW-D-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-DW-D-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-UW-H-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-UW-H-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-WA-01-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-WA-01-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-WA-02-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-WA-02-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-WA-03-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-WA-03-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-WA-04-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-WA-04-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-WA-05-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.016

U

0.016

ppm

0.016

UJ

EPD-ST-8H-WA-05-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.011

U

0.011

ppm

0.011

UJ

EPD-ST-8H-WA-06-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-WA-06-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

U

0.01

ppm

0.01

UJ

EPD-ST-8H-WA-44-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

0.015

U

0.015

ppm

0.015

UJ

EPD-ST-8H-WA-44-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

0.01

u

0.01

ppm

0.01

UJ

EPD-ST-FB-060823-2

IHGC-P029 103-11-7 2-Ethylhexyl acrylate

2.8 U

2.8

ug

2.8

UJ

EPD-ST-FB-060823-2

IHGC-P029 141-32-2 n-Butyl acrylate

1.3

u

1.3

ug

1.3

UJ

Page 1 of 1


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Site Name

E Palestine Site - ER



TO/TOLIN No.

68HE0520F0032/000IEB201

Document Tracking No.

1985b

Laboratory Report No.

B163-116

Laboratory

Eurofins Analytics, LLC - Ashland, VA

Analyses

n-Butyl acrylate analysis by NIOSH Method 1450M

Samples and Matrix

Thirty-two air samples, including four field blanks and three field duplicates pairs

Collection Date(s)

June 8, 2023

Field Duplicate Pairs

EPD-PB-CM-088-060823-2/EPD-PB-CM-08-060823-2
EPD-PB-OD-066-060823-2/EPD-PB-OD-06-060823-2
EPD-PB-WA-022-060823-2/EPD-PB-WA-02-060823-2

Field QC Blanks

EPD-PB-FB-02-060823-2, EPD-PB-FB-03-060823-2, EPD-PB-MB-02-060823-2, and EPD-PB-MB-03-060823-2

INTRODUCTION

This checklist summarizes the Stage 2A validation performed on the subject laboratory report, in accordance with the U.S. Environmental
Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data
were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan East Palestine Train Derailment Site East Palestine,
Columbiana County, Ohio, EPA Region 5, Revision 3 (April 2023), the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment
and Response Team (START V), EPA Region 5, Revision 4 (August 2022), and the EPA National Functional Guidelines (NFG)for Organic Superfund
Methods Data Review (November 2020).

OVERALL EVALUATION

No rejection or qualification of results was required for this data package. The results may be used as reported by the laboratory.

Data completeness:

Within
Criteria

Exceedance/Notes

Y

The results for the field blank were reported in units of micrograms (ng) while the other sample results were reported in units of
Hg, milligram per cubic meter (mg/m3), and parts per million (ppm) (volume) in the laboratory report and only ppm in the
electronic data deliverable (EDD).

The sample analysis time was reported as a default value of 12 AM or 00:00 hours for the LCSD in the analysis date field. The
analysis date was correct. The sample analysis time for the LCSD was not required for the EDD; therefore, this value was not
manually revised.

TETRA TECH

Page 1 of 5


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Data completeness (continued):

Within
Criteria

Exceedance/Notes

Y

The site-specific QAPP for passive badges specifies one laboratory blank, one LCS, and one LCS duplicate will be prepared per batch
of 20 samples. However, the laboratory was not specifying a maximum batch sample size. The laboratory was contacted and
directed to follow the QC sample frequencies specified in the site-specific QAPP. No qualifications were applied because the
LCS/LCSD met the QAPP acceptance criteria, and the LCS/LCSD data from previous datasets for this project have met the site-
specific QAPP acceptance criteria.

Sample preservation, receipt, and holding times:

Within
Criteria

Exceedance/Notes

Y



Method blanks:

Within
Criteria

Exceedance/Notes

Y



Field blanks:

Within
Criteria

Exceedance/Notes

Y



Surrogates and labeled compounds:

Within
Criteria

Exceedance/Notes

NA



TETRA TECH

Page 2 of 5


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

MS/MSDs:

Within
Criteria

Exceedance/Notes

NA



Laboratory duplicates:

Within
Criteria

Exceedance/Notes

NA



Field duplicates:

Within
Criteria

Exceedance/Notes

Y



LCSs/LCSDs:

Within
Criteria

Exceedance/Notes

N

The site specific QAPP requires a laboratory reagent blank (LRB), laboratory media blank (LMB), laboratory control sample (LCS),
and LCS duplicate (LCSD) to be analyzed per batch of 20 samples. However, the laboratory analyzed 32 field samples in one sample
preparation batch consisting of one LRB, LMB, LCS, and LCSD, when the batch should have contained two LRBs, LMBs, LCSs, and
LCSDs. The laboratory was contacted about the deviation from the site specific QAPP, and moving forward the laboratory will
follow the quality control (QC) sample frequency requirements in the site specific QAPP. No qualifications were applied because
the QC samples met the QAPP acceptance criteria and the QC samples from previous datasets for this project have met the QAPP
acceptance criteria.

Sample dilutions:

Within
Criteria

Exceedance/Notes

NA



TETRA TECH

Page 3 of 5


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Re-extraction and reanalysis:

Within
Criteria

Exceedance/Notes

NA



MDLs/RLs:

Within
Criteria

Exceedance/Notes

Y

Method detection limits were not reported. Non-detect sample results are reported as less than the reporting limit in the
laboratory report and at the reporting limit (flagged U) in the EDD and attached qualified data table.

Tentatively identified compounds:

Within
Criteria

Exceedance/Notes

NA



Other [none]:

Within
Criteria

Exceedance/Notes

NA



TETRA TECH

Page 4 of 5


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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Overall Qualifications:

See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The following is a list of qualifiers and
definitions that may be used for the validation of this data package:

J

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.

J+

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased high.

J-

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased low.

NJ

The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate
concentration of the analyte in the sample.

R

The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not
be present in the sample.

U

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).

UJ

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit), which is considered approximate
due to deficiencies in one or more quality control criteria.

TETRA TECH

Page 5 of 5


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E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY
EUROFINS ANALYTICS REPORT NO. B163-116

Sample ID

Method

Cas. No. Analyte



Lab_Result Lab_Qual

RL

Units

Val_Result Val_Qual

EPD-PB-BKBA-01-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-BKBA-02-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-06-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-07-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-08-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-088-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-09-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-10-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-11-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-12-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-CM-14-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-DW-D-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-01-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-02-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-03-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-04-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-05-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-06-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-066-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-OD-07-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

U

0.0091

ppm

0.0091

U

EPD-PB-UW-H-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.009

u

0.009

ppm

0.009

u

EPD-PB-WA-01-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-WA-02-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-WA-022-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-WA-03-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-WA-04-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-WA-05-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-WA-06-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

0.0091

u

0.0091

ppm

0.0091

u

EPD-PB-FB-02-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

2

u

2

ug

2

u

EPD-PB-FB-03-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

2

u

2

ug

2

u

EPD-PB-MB-02-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

2

u

2

ug

2

u

EPD-PB-MB-03-060823-2

NIOSH Method 1450M

141-32-2 n-Butyl

aery

ate

2

u

2

ug

2

u

Page 1 of 1


-------
DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Site Name

E Palestine Site - ER



TO/TOLIN No.

68HE0520F0032/000IEB201

Document Tracking No.

1985c

Laboratory Report No.

B163-117

Laboratory

Eurofins Analytics, LLC - Ashland, VA

Analyses

2-Ethylhexyl acrylate and n-Butyl acrylate

by

aboratory standard operating procedure (SOP) IHGC-P029

Samples and Matrix

Nine air samples, including one field blank

Collection Date(s)

June 8, 2023

Field Duplicate Pairs

None

Field QC Blanks

EPD-ST-FB-060823-1

INTRODUCTION

This checklist summarizes the Stage 2A validation performed on the subject laboratory report, in accordance with the U.S. Environmental
Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data
were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan East Palestine Train Derailment Site East Palestine,
Columbiana County, Ohio, EPA Region 5, Revision 3 (April 2023), the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment
and Response Team (START V), EPA Region 5, Revision 4 (August 2022), and the EPA National Functional Guidelines (NFG)for Organic Superfund
Methods Data Review (November 2020).

OVERALL EVALUATION

No rejection of results was required for this data package. The results may be used as qualified based on this validation effort.

Data completeness:

Within
Criteria

Exceedance/Notes

Y

The report was amended to correct the value for volume for sample EPD-ST-8H-WA-05-060823-2 from "23.35" to "23.52".

The results for the field blank were reported in units of micrograms (ng) while the other sample results were reported in units of
Hg, milligram per cubic meter (mg/m3), and parts per million (ppm) (volume) in the laboratory report and only ppm in the
electronic data deliverable (EDD) except for blanks which provided results in ng.

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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Data completeness (continued):

Within
Criteria

Exceedance/Notes

Y

The sample analysis time was reported as a default value of 12 AM or 00:00 hours for the LCSD in the analysis date field. The
analysis date was correct. The sample analysis time for the LCSD was not required for the EDD; therefore, this value was not
manually revised.

The laboratory report uses method reference "Rohm & Haas IH9805" (referenced to the AIHA certification as IHGC-P029) or "IHGC-
P029" interchangeably.

Sample preservation, receipt, and holding times:

Within
Criteria

Exceedance/Notes



Holding time limits were exceeded in the extraction of the samples. All sample results were non-detect, and therefore qualified as
non-detect with possible low bias (flagged UJ).

Method blanks:

Within
Criteria

Exceedance/Notes

Y



Field blanks:

Within
Criteria

Exceedance/Notes

Y



Surrogates and labeled compounds:

Within
Criteria

Exceedance/Notes

NA



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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

MS/MSDs:

Within
Criteria

Exceedance/Notes

NA



Laboratory duplicates:

Within
Criteria

Exceedance/Notes

NA



Field duplicates:

Within
Criteria

Exceedance/Notes

NA



LCSs/LCSDs:

Within
Criteria

Exceedance/Notes

N

The recoveries of 2-Ethylhexyl acrylate in the LCS and LCSD were above the laboratory control limits. The sample results are non-
detect and were therefore not qualified.

Sample dilutions:

Within
Criteria

Exceedance/Notes

NA



Re-extraction and reanalysis:

Within
Criteria

Exceedance/Notes

NA



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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

MDLs/RLs:

Within
Criteria

Exceedance/Notes

Y

Method detection limits were not reported. Non-detect sample results are reported as less than the reporting limit in the
laboratory report and at the reporting limit (flagged U) in the EDD and attached qualified data table.

Tentatively identified compounds:

Within
Criteria

Exceedance/Notes

NA



Other [none]:

Within
Criteria

Exceedance/Notes

NA



Overall Qualifications:

See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The following is a list of qualifiers and
definitions that may be used for the validation of this data package:

J

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.

J+

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased high.

J-

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased low.

NJ

The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate
concentration of the analyte in the sample.

R

The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not
be present in the sample.

U

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).

UJ

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit), which is considered approximate
due to deficiencies in one or more quality control criteria.

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E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY
EUROFINS ANALYTICS REPORT NO. B163-117

Sample ID	Method Cas. No. Analyte	Lab_Result Lab_Qual RL Units Val_Result Val_Qual

EPD-ST-8H-DW-E-060823-1
EPD-ST-8H-DW-E-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014
0.009

UJ
UJ

EPD-ST-8H-UW-A-060823-1
EPD-ST-8H-UW-A-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.014 U
0.01 U

0.014
0.01

ppm
ppm

0.014
0.01

UJ
UJ

EPD-ST-8H-WA-01-060823-1
EPD-ST-8H-WA-01-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014
0.009

UJ
UJ

EPD-ST-8H-WA-02-060823-1
EPD-ST-8H-WA-02-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.015 U
0.01 U

0.015
0.01

ppm
ppm

0.015
0.01

UJ
UJ

EPD-ST-8H-WA-03-060823-1
EPD-ST-8H-WA-03-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.015 U
0.01 U

0.015
0.01

ppm
ppm

0.015
0.01

UJ
UJ

EPD-ST-8H-WA-04-060823-1
EPD-ST-8H-WA-04-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014
0.009

UJ
UJ

EPD-ST-8H-WA-05-060823-1
EPD-ST-8H-WA-05-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.015 U
0.01 U

0.015
0.01

ppm
ppm

0.015
0.01

UJ
UJ

EPD-ST-8H-WA-06-060823-1
EPD-ST-8H-WA-06-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014
0.009

UJ
UJ

EPD-ST-FB-060823-1
EPD-ST-FB-060823-1

IHGC-P029 103-11-7 2-Ethylhexyl acrylate
IHGC-P029 141-32-2 n-Butyl acrylate

2.8 U
1.3 U

2.8
1.3

ug
ug

2.8
1.3

UJ
UJ

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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Site Name

E Palestine Site - ER



TO/TOLIN No.

68HE0520F0032/000IEB201

Document Tracking No.

1985d

Laboratory Report No.

B163-124

Laboratory

Eurofins Analytics, LLC - Ashland, VA

Analyses

2-Ethylhexyl acrylate and n-Butyl acrylate

by

aboratory standard operating procedure (SOP) IHGC-P029

Samples and Matrix

Nine air samples, including one field blank

Collection Date(s)

June 9, 2023

Field Duplicate Pairs

None

Field QC Blanks

EPD-ST-FB-060923-1

INTRODUCTION

This checklist summarizes the Stage 2A validation performed on the subject laboratory report, in accordance with the U.S. Environmental
Protection Agency (EPA) Guidance for Labeling Externally Validated Laboratory Analytical Data for Superfund Use (January 2009). Analytical data
were evaluated in general accordance with the Tetra Tech Quality Assurance Project Plan East Palestine Train Derailment Site East Palestine,
Columbiana County, Ohio, EPA Region 5, Revision 3 (April 2023), the Tetra Tech Quality Assurance Project Plan, Superfund Technical Assessment
and Response Team (START V), EPA Region 5, Revision 4 (August 2022), and the EPA National Functional Guidelines (NFG)for Organic Superfund
Methods Data Review (November 2020).

OVERALL EVALUATION

No rejection or qualification of results was required for this data package. The results may be used as reported by the laboratory.

Data completeness:

Within
Criteria

Exceedance/Notes

Y

The report was amended to correct sample ID from "EPD-ST-FB-060923" to "EPD-ST-FB-060923-1".

The results for the field blank were reported in units of micrograms (ng) while the other sample results were reported in units of
Hg, milligram per cubic meter (mg/m3), and parts per million (ppm) (volume) in the laboratory report and only ppm in the
electronic data deliverable (EDD).

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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Data completeness (continued):

Within
Criteria

Exceedance/Notes

Y

The laboratory report and the EDD have one or more minor discrepancies in the LCS/LCSD results {+/-1 ug) and/or percent
recoveries {+/-1%) that were verified with the laboratory to be a significant figures issue. No qualification was applied.

The sample analysis time was reported as a default value of 12 AM or 00:00 hours for the LCSD in the analysis date field. The
analysis date was correct. The sample analysis time for the LCSD was not required for the EDD; therefore, this value was not
manually revised.

The laboratory report uses method reference "Rohm & Haas IH9805" (referenced to the AIHA certification as IHGC-P029) or "IHGC-
P029" interchangeably.

Sample preservation, receipt, and holding times:

Within
Criteria

Exceedance/Notes

Y



Method blanks:

Within
Criteria

Exceedance/Notes

Y



Field blanks:

Within
Criteria

Exceedance/Notes

Y



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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Surrogates and labeled compounds:

Within
Criteria

Exceedance/Notes

NA



MS/MSDs:

Within
Criteria

Exceedance/Notes

NA



Laboratory duplicates:

Within
Criteria

Exceedance/Notes

NA



Field duplicates:

Within
Criteria

Exceedance/Notes

NA



LCSs/LCSDs:

Within
Criteria

Exceedance/Notes

N

The recoveries of 2-Ethylhexyl acrylate were above the laboratory control limits. The results were non-detect and therefore not
qualified.

Sample dilutions:

Within
Criteria

Exceedance/Notes

NA



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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Re-extraction and reanalysis:

Within
Criteria

Exceedance/Notes

NA



MDLs/RLs:

Within
Criteria

Exceedance/Notes

Y

Method detection limits were not reported. Non-detect sample results are reported as less than the reporting limit in the
laboratory report and at the reporting limit (flagged U) in the EDD and attached qualified data table.

Tentatively identified compounds:

Within
Criteria

Exceedance/Notes

NA



Other [none]:

Within
Criteria

Exceedance/Notes

NA



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DATA VALIDATION CHECKLIST - STAGE 2A
EPA REGION 5 START CONTRACT

Overall Qualifications:

See results summary pages attached for changes to the laboratory qualifiers based upon this validation. The following is a list of qualifiers and
definitions that may be used for the validation of this data package:

J

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample.

J+

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased high.

J-

The analyte was positively identified; the associated value is the approximate concentration of the analyte in the sample and may be
biased low.

NJ

The analysis indicates the presence of an analyte that has been "tentatively identified" and the associated value is the approximate
concentration of the analyte in the sample.

R

The sample result is rejected as unusable due to serious deficiencies in one or more quality control criteria. The analyte may or may not
be present in the sample.

U

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit).

UJ

The analyte was analyzed for, but was not detected at or above the associated value (reporting limit), which is considered approximate
due to deficiencies in one or more quality control criteria.

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E PALESTINE SITE - ER AIR ANALYTICAL RESULTS SUMMARY
EUROFINS ANALYTICS REPORT NO. B163-124

Sample ID	Method Cas. No. Analyte	Lab_Result Lab_Qual RL Units Val_Result Val_Qual

EPD-ST-8H-DW-D-060923-1
EPD-ST-8H-DW-D-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.013 U
0.009 U

0.013
0.009

ppm
ppm

0.013 U
0.009 U

EPD-ST-8H-UW-H-060923-1
EPD-ST-8H-UW-H-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014 U
0.009 U

EPD-ST-8H-WA-01-060923-1
EPD-ST-8H-WA-01-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014 U
0.009 U

EPD-ST-8H-WA-02-060923-1
EPD-ST-8H-WA-02-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014 U
0.009 U

EPD-ST-8H-WA-03-060923-1
EPD-ST-8H-WA-03-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014 U
0.009 U

EPD-ST-8H-WA-04-060923-1
EPD-ST-8H-WA-04-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.013 U
0.009 U

0.013
0.009

ppm
ppm

0.013 U
0.009 U

EPD-ST-8H-WA-05-060923-1
EPD-ST-8H-WA-05-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.014 U
0.01 U

0.014
0.01

ppm
ppm

0.014 U
0.01 U

EPD-ST-8H-WA-06-060923-1
EPD-ST-8H-WA-06-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

0.014 U
0.009 U

0.014
0.009

ppm
ppm

0.014 U
0.009 U

EPD-ST-FB-060923-1
EPD-ST-FB-060923-1

IHGC-P029
IHGC-P029

103-11-7 2-Ethylhexyl acrylate
141-32-2 n-Butyl acrylate

2.8 U
1.3 U

2.8
1.3

ug
ug

2.8 U
1.3 U

Page 1 of 1


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