HomeMy WebLinkAboutDSHW-2024-008488Results of 2023 Annual Indoor Air Monitoring
Northrop Grumman Systems Corporation
2211 West North Temple
Salt Lake City, Utah
September 4, 2024
Prepared for:
Northrop Grumman Systems Corporation
P.O. Box 1693
Baltimore, Maryland 21203
Prepared by:
Stantec Consulting Services Inc.
1165 Scheuring Road
De Pere, Wisconsin 54115
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
This document entitled Results of 2023 Annual Indoor Air Monitoring was prepared by Stantec
Consulting Services Inc. (“Stantec”) for the account of Northrop Grumman Systems Corporation (the
“Client”). Any reliance on this document by any third party is strictly prohibited. The material in it
reflects Stantec’s professional judgment of the scope, schedule and other limitations stated in the
document and in the contract between Stantec and the Client. The opinions in the document are
based on conditions and information existing at the time the document was published and do not
consider any subsequent changes. In preparing the document, Stantec did not verify information
supplied to it by others. Any use which a third party makes of this document is the responsibility of
such third party. Such third party agrees that Stantec shall not be responsible for costs or damages
of any kind, if any, suffered by it or any other third party as a result of decisions made or actions taken
based on this document.
Prepared by
(signature)
Andrew Riemer
Approved by
(signature)
Chris Maxwell, P.G.
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
Table of Contents
EXECUTIVE SUMMARY .............................................................................................................. 1
1.0 INTRODUCTION AND BACKGROUND ........................................................................... 2
1.1 SITE LOCATION ............................................................................................................... 2
1.2 HISTORICAL SITE INVESTIGATIONS ............................................................................ 2
2.0 INVESTIGATION METHODS ........................................................................................... 3
2.1 PRE-FIELD ACTIVITIES ................................................................................................... 3
2.1.1 Health and Safety Plan .................................................................................... 3
2.2 INDOOR AND OUTDOOR AIR MONITORING FIELD PARAMETERS ............................ 3
2.3 INDOOR AND OUTDOOR AIR MONITORING LOCATIONS ........................................... 3
2.4 LABORATORY ANALYSIS ............................................................................................... 4
3.0 RESULTS ......................................................................................................................... 5
3.1 APRIL 2023 MONITORING EVENT ................................................................................. 5
3.2 NOVEMBER 2023 MONITORING EVENT ....................................................................... 5
4.0 DATA USABILITY ASSESSMENT................................................................................... 6
4.1 DATA REVIEW ................................................................................................................. 6
4.2 SAMPLE HANDLING PROCEDURES .............................................................................. 6
4.3 LABORATORY ANALYTICAL PROCEDURES ................................................................ 6
4.4 DATA RECONCILIATION ................................................................................................. 6
5.0 CONCLUSIONS ................................................................................................................ 7
LIST OF TABLES
Table 1 – Indoor Air Field Parameters
Table 2 – Indoor Air and Outdoor Ambient Air VOC Laboratory Analytical Data
LIST OF FIGURES
Figure 1 – Site Location Map
Figure 2 – Site Layout
Figure 3 –Indoor Air Sampling Locations
LIST OF APPENDICES
Appendix A – Indoor Air Sampling Methodology
Appendix B – April 2023 Indoor Air Field Data Sheets
Appendix C – November 2023 Indoor Air Field Data Sheets
Appendix D – April 2023 Indoor Air Laboratory Analytical Data Report
Appendix E – November 2023 Indoor Air Laboratory Analytical Data Report
1 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
EXECUTIVE SUMMARY
This report presents the results of 2023 annual indoor air monitoring events conducted by Stantec
Consulting Services, Inc (Stantec) at the Northrop Grumman Systems Corporation (Northrop
Grumman) facility located at 2211 West North Temple in Salt Lake City, Utah (the Site). The Site
location is shown on Figure 1. The Site Layout is shown on Figure 2.
On May 9, 2017, the Utah Department of Environmental Quality (UDEQ) provided a letter to Northrop
Grumman Systems Corporation (Northrop Grumman) approving the Final Human Health Risk
Assessment (Stantec, March 2017) for chemicals of concern (COC) in soil, soil vapor, indoor air (IA),
and groundwater at the Site. The soil vapor and indoor air constituents of concern are select volatile
organic compounds (VOCs). Consistent with the approved risk assessment, the remedial approach
for soil vapor and indoor air is long-term monitoring and institutional controls.
Northrop Grumman has developed a Site Management Plan (SMP) which includes an updated
annual indoor air monitoring program that will provide continued monitoring of IA conditions at the
Site. The monitoring completed for the 2023 annual event is consistent with the recommendations
in the SMP. The SMP is currently under UDEQ review.
Analytical results from the 2023 annual indoor air monitoring event are consistent with previous
monitoring events. Through evaluation of sub-slab, IA, and outdoor (OA) conditions over multiple
sampling events between 2017 and 2023, Northrop Grumman has confirmed that the data and
conclusions of the HHRA remain consistent and accurate. There is no current threat to the health
of Site workers associated with VOCs.
2 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
1.0 INTRODUCTION AND BACKGROUND
1.1 SITE LOCATION
The facility is located at 2211 West North Temple in Salt Lake City, Utah (the Site). The Site is
bounded by North Temple to the north and south, 2200 W to the east, and 2400 W to the west.
The Site location is shown on Figure 1.
1.2 HISTORICAL SITE INVESTIGATIONS
The property was vacant space prior to purchase by Litton Systems, Inc. (Litton) in the early 1950’s.
Litton was purchased by Northrop Grumman in 2001. The property was subsequently renamed as
the Northrop Grumman Guidance and Electronics Company, Inc. in 2007, which has
been subsequently renamed as Northrop Grumman Systems Corporation. The footprint of the
original building constructed by Litton in the early 1950’s is shown on Figure 2. There have
been three significant additions to the Site building since original building construction, including
expansions in 2009 and 2010.
Volatile organic compounds (VOCs) are present in soil and groundwater beneath this area of
the Site building extending to depths of approximately 50 to 60 feet below ground surface (bgs).
The primary constituent of concern is trichloroethylene (TCE). The VOCs in soil and
groundwater are the source of VOCs detected in sub-slab soil vapor beneath the Site
building. Relatively low concentrations of select VOCs are periodically detected in IA samples
below regulatory threshold levels for commercial/industrial workers. The area of soil and
groundwater affected by VOCs associated with historic Site operations does not appear to
extend off-Site.
3 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
2.0 INVESTIGATION METHODS
The section presents the methods for the Site investigation activities documented in this Report,
including fixed-based laboratory analysis of IA samples. Laboratory data are presented in Section
3.
2.1 PRE-FIELD ACTIVITIES
2.1.1 Health and Safety Plan
Stantec prepared an amendment to the existing Site-specific health and safety plan (HASP) to
address potential health and safety concerns associated with the proposed field activities. A copy
of the HASP was available during field activities for use by Stantec and was reviewed for
completeness prior to commencement of each indoor air sampling event.
2.2 INDOOR AND OUTDOOR AIR MONITORING FIELD PARAMETERS
IA and OA monitoring was conducted on April 28 and November 10, 2023 following guidance outlined
in the OSWER Technical Guide for Assessing and Mitigating the Vapor Intrusion Pathway from
Subsurface Vapor Sources to Indoor Air (US EPA, June 2015). IA and OA methods and sample
collection procedures are provided in Appendix A. IA and OA sampling locations are illustrated on
Figure 3.
IA and OA monitoring field parameters were reported on field forms. April 2023 field forms are
included as Appendix B; November 2023 field forms are included as Appendix C. Field parameters
were collected on an hourly basis using a TSI Q-TRAK Plus 8554 IAQ monitor; air speed, and air
speed direction were recording using a TSI 9665-P VelociCalc Plus. Field parameters included:
•Temperature;
•Relative humidity;
•Carbon monoxide (CO);
•Carbon dioxide (CO2);
•Air speed; and
•Air speed direction.
A MiniRAE photoionization detector (PID) with an 11.7 electrovolt (eV) lamp was also utilized to
collect hourly headspace readings in the sample location areas. IA and OA field parameters are
summarized on Table 1.
2.3 INDOOR AND OUTDOOR AIR MONITORING LOCATIONS
IA and OA samples were collected at four locations during both the April and November 2023
monitoring events. The sampling events were conducted during a typical heating season
configuration for the air handler units (AHUs). Three indoor locations (IA-2, IA-3, and IA-6) were
selected in the north and north-central portions of the Site building (consistent with the SMP). One
outdoor location (OA-1) was selected to provide information on the quality of “ambient” air being
drawn into the heating, ventilation, and air conditioning system and was collected concurrent with
indoor air sampling. A duplicate sample was collected from one location (IA-2) during each
monitoring event for quality control.
4 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
2.4 LABORATORY ANALYSIS
IA and OA samples were collected using passivated, batch certified, 6-liter (L) stainless-steel
Summa™ canisters fitted with individually certified low-flow controllers calibrated for sample
collection over a 10-hour period. The low-flow controllers were connected to canisters via a
Swagelok™ compression fitting. Summa™ canister tags were marked with a unique identification
number for shipment to the Eurofins Air Toxics, LLC (Eurofins) – Folsom, California laboratory under
chain-of-custody documentation for VOC laboratory analysis under United States Environmental
Protection Agency (US EPA) Method TO-15. The chain-of-custody included sample start and end
times and initial and final canister vacuum readings for each sample.
5 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
3.0 RESULTS
3.1 APRIL 2023 MONITORING EVENT
TCE concentrations were reported below the laboratory limit of detection for all April 2023 IA and OA
sample locations. Other detected VOCs were reported at concentrations below US EPA Industrial
Air Regional Screening Levels. Table 2 provides a data summary of VOC compounds detected by
laboratory analysis. The April 2023 laboratory data analytical report is included in Appendix D.
3.2 NOVEMBER 2023 MONITORING EVENT
TCE concentrations were reported below the laboratory limit of detection for all November 2023 IA
and OA sample locations. Other detected VOCs were reported at concentrations below US EPA
Industrial Air Regional Screening Levels. The November 2023 laboratory data analytical report is
included in Appendix E.
6 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
4.0 DATA USABILITY ASSESSMENT
Assessment of data usability is the overall process of evaluating the degree of confidence with which
data may be used and relied upon.
4.1 DATA REVIEW
Following receipt of the laboratory reports, data were subjected to an internal data review process.
The following data qualifiers were noted by the laboratory in both the April 2023 and November 2023
analytical data reports:
•A ‘J’ qualifier was used for estimated values; and
•An ‘E’ qualifier was used to note where a result exceeded the calibration range, indicating that
the result an estimated value.
4.2 SAMPLE HANDLING PROCEDURES
Review of field notes, chain-of-custody documentation, and laboratory sample acceptance forms
indicates that samples were collected and stored at ambient temperature and received by the
laboratory within the following US EPA-established hold time of 30-days for Summa™ canister
analysis under US EPA Method TO-15.
4.3 LABORATORY ANALYTICAL PROCEDURES
Review of final laboratory reports for indoor air and confirmation outdoor air sampling indicate that
there were no laboratory modifications to US EPA Method TO-15 for the 2023 sampling events.
Canister dilutions and adjusted final pressures were appropriate for the sample volume collected.
The laboratory conformed to method requirements for continuing instrument calibration, spike, and
surrogate analysis and reporting of relative percent difference. There were no detections of target
compounds reported in the laboratory method blanks during the analysis which would indicate
instrument carryover between sample runs.
4.4 DATA RECONCILIATION
No data reconciliation was required for either the field or at the laboratory. The data presented in
this report are considered acceptable for their intended analyzing of VOCs in indoor air.
7 | Page
RESULTS OF 2023 ANNUAL INDOOR AIR MONITORING
September 4, 2024
5.0 CONCLUSIONS
As part of SMP development and continued site management, Northrop Grumman conducted IA
monitoring in April and November 2023. TCE was not detected in IA or OA samples during either
monitoring event.
The results of the 2023 indoor air sampling events are consistent with standard building conditions
from multiple IA and OA sampling events completed between 2017 and 2022. Northrop Grumman
has confirmed that the data and conclusions of the HHRA remain consistent and accurate. There is
no current threat to the health of Site workers associated with VOCs in soil, soil vapor, IA, or
groundwater beneath the Site building. Based on this data, Stantec recommends that one additional
annual indoor air monitoring event be performed in the fourth calendar quarter of 2024. If the results
from this event remain consistent with previous events, Northrop Grumman intends to recommend
no further indoor air monitoring be conducted as part of the long-term site management plan.
Tables
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 West North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)44.5 NA 50.1 NA 49.2 NA 48.0 NA 43.9 NA
Relative Humidity (%)NA NA 61.4 NA 60.5 NA 57.1 NA 58.4 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction Northwest NA Northwest NA West NA West NA NA NA
CO (ppm)NA NA 6.9 NA 7.2 NA 7.7 NA 3.8 NA
CO2 (ppm)NA NA 324 NA 331 NA 316 NA 334 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 52.9 59.7 65.0 64.3 NA NA NA NA 64.3
Relative Humidity (%)NA 23.5 20.2 22.4 17.6 NA NA NA NA 20.1
Barometric Pressure (in Hg)NA 25.91 25.91 25.91 25.89 NA NA NA NA 25.79
Air Speed (ft/min)NA 127 193 62 241 NA NA NA NA 462
Air Speed Direction NA East East Soutwest Southwest NA NA NA NA North
CO (ppm)NA 0.0 0.0 0.0 0.0 NA NA NA NA 0.0
CO2 (ppm)NA 424 463 512 358 NA NA NA NA 360
PID (ppm)NA 0.0 0.0 0.0 0.0 NA NA NA NA 0.0
Temperature (°F)NA NA NA 40.0 NA NA 46 NA NA 40
Relative Humidity (%)NA NA NA 39 NA NA 40 NA NA 58
Barometric Pressure (in Hg)NA NA NA 30.28 NA NA 30.15 NA NA 30.22
Air Speed (ft/min)NA NA NA 116 NA NA 56 NA NA 144
Air Speed Direction NA NA NA Southwest NA NA West NA NA West
CO (ppm)NA NA NA 0.0 NA NA 0.0 NA NA 0.0
CO2 (ppm)NA NA NA 480 NA NA 440 NA NA 420
PID (ppm)NA NA NA 0.0 NA NA 0 NA NA 0.0
Temperature (°F)NA 30.0 30.0 34.0 38.0 40 40 39 39 37.0
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 177 89 148 222 178 46 64 396 243
Air Speed Direction NA East East West West West West Northwest North North
CO (ppm)NA 0.0 0.0 0.0 0.0 0 0 0 0 0.0
CO2 (ppm)NA 480 400 400 380 380 360 380 320 360
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)50 NA 56 58 60 64 65 66 68 69
Relative Humidity (%)44 NA 30 28 23 20 25 20 20 15
Barometric Pressure (in Hg)30.18 NA 30.19 30.19 30.17 30.16 30.14 30.14 30.08 30.07
Air Speed (ft/min)110 NA 148 448 265 509 70 210 563 489
Air Speed Direction West NA West West West West West West West West
CO (ppm)0 NA 0 0 0 0 0 0 0 0
CO2 (ppm)400 NA 380 400 380 400 380 380 380 360
PID (ppm)0 NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)35 NA 41 46 NA 50 51 ---
Relative Humidity (%)79 NA 62 43 NA 36 33 ---
Barometric Pressure (in Hg)30.27 NA 30.22 30.21 NA 30.15 30.14 ---
Air Speed (ft/min)330 NA 357 195 NA 431 179 ---
Air Speed Direction Southeast NA Southeast Southeast NA Southwest West ---
CO (ppm)0 NA 0 0 NA 0 0 ---
CO2 (ppm)420 NA 400 440 NA 440 440 ---
PID (ppm)0 NA 0.0 0.0 NA 0.0 0.0 ---
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
4/28/2023
11/17/2017
2/9/2018
11/18/2021
1/13/2022
11/10/2023
OA-1
Page 1 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 West North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 68.1 NA 69.4 NA 70.9 NA 70.1 NA
Relative Humidity (%)NA NA 28.2 NA 25.7 NA 22.4 NA 22.1 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 5.7 NA 7.5 NA 7.1 NA 5.3 NA
CO2 (ppm)NA NA 421 NA 362 NA 355 NA 340 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 69.4 68.8 69.7 69.7 69.9 70.2 70.5 70.5 70.2
Relative Humidity (%)NA 26.5 26.7 24.4 23.2 22.6 22.4 22.8 22.4 23.2
Barometric Pressure (in Hg)NA 25.92 25.92 25.92 25.91 25.88 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 0 35 0 15 30 25 13 3 18
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 497 491 444 444 408 402 401 403 423
PID (ppm)NA 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 61.0 63.9 67.3 65.3 68.6 67.2 66.7 63.4 70.2
Relative Humidity (%)NA 61 53 39 34 40 40 40 41 58
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 53 0 43 0 0 0 0 0 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 480 500 500 500 500 480 460 440 420
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 66.8 60.8 60.8 61.5 64.5 64.0 62.8 63.4 62.7
Relative Humidity (%)NA 86 84 74 74 65 63 72 73 73
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 25 0 86 8 0 8 0 0 8
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 460 400 420 420 380 400 380 380 320
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)68.0 NA 69.6 72.5 73.3 73.4 73.5 74.2 74.3 72.7
Relative Humidity (%)44 NA 30 28 23 20 25 20 20 15
Barometric Pressure (in Hg)30.18 NA 30.19 30.19 30.17 30.16 30.14 30.14 30.08 30.07
Air Speed (ft/min)29 NA 5 15 17 3 14 14 4 20
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)0 NA 0 0 0 0 0 0 0 0
CO2 (ppm)420 NA 400 420 400 400 380 360 40 380
PID (ppm)0.0 NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)64.5 NA 66.1 67.9 NA 70.4 70.5 69.8 69.1 70.0
Relative Humidity (%)79 NA 62 43 NA 36 33 46 52 55
Barometric Pressure (in Hg)30.27 NA 30.22 30.21 NA 30.15 30.14 30.12 30.14 30.16
Air Speed (ft/min)3 NA 9 20 NA 17 0 1 9 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)0 NA 0 0 NA 0 0 0 0 0
CO2 (ppm)600 NA 580 560 NA 440 480 500 480 480
PID (ppm)0.1 NA 0.1 0.1 NA 0.0 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
11/17/2017
2/9/2018
11/18/2021
1/13/2022
11/10/2023
IA-2
4/28/2023
Page 2 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 W est North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 68.0 NA 69.2 NA 69.1 NA 69.1 NA
Relative Humidity (%)NA NA 26.7 NA 25.1 NA 25.6 NA 23.4 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 6.0 NA 5.7 NA 5.8 NA 4.9 NA
CO2 (ppm)NA NA 362 NA 353 NA 355 NA 338 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 71.1 70.8 70.8 71.0 71.1 71.5 71.3 71.9 70.3
Relative Humidity (%)NA 25.5 24.5 23.0 22.2 21.5 21.4 21.1 22.4 22.4
Barometric Pressure (in Hg)NA 25.93 25.93 25.92 25.91 25.88 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 11 2 7 7 3 15 1 5 13
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 522 530 453 441 422 423 401 404 432
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 64.1 66.1 68.7 67.7 69.3 68.3 68.0 65.2 70.8
Relative Humidity (%)NA 61.0 53.0 39.0 34.0 40.0 40.0 40.0 41.0 58.0
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 0 0 0 0 46 41 62 0 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 540 520 520 520 520 520 500 460 440
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 67.4 62.0 63.2 63.0 65.6 65.1 64.4 64.5 60.6
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 48 19 87 51 55 77 79 0 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 460 440 460 420 420 420 400 400 340
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)69.2 NA 70.5 72.1 72.6 73.0 72.1 72.6 72.4 71.3
Relative Humidity (%)44 NA 30 28 23 20 25 20 20 15
Barometric Pressure (in Hg)30.18 NA 30.19 30.19 30.17 30.16 30.14 30.14 30.08 30.07
Air Speed (ft/min)75 NA 51 89 117 74 85 115 33 33
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)0 NA 0 0 0 0 0 0 0 0
CO2 (ppm)400.0 NA 420 400 380 380 380 380 380 360
PID (ppm)0.0 NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)69.5 NA 68.2 69.4 NA 70.4 71.0 70.2 69.9 70.4
Relative Humidity (%)79 NA 62 43 NA 36 33 46 52 55
Barometric Pressure (in Hg)30.27 NA 30.22 30.21 NA 30.15 30.14 30.12 30.14 30.16
Air Speed (ft/min)13 NA 129 72 NA 134 65 73 122 101
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)0 NA 0 0 NA 0 0 0 0 0
CO2 (ppm)500 NA 460 460 NA 460 460 460 460 460
PID (ppm)0.1 NA 0.3 0.2 NA 0.1 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
11/18/2021
1/13/2022
11/17/2017
11/10/2023
IA-3
2/9/2018
4/28/2023
Page 3 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 W est North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 70.1 NA 69.1 NA 69.5 NA 68.9 NA
Relative Humidity (%)NA NA 25.2 NA 25.3 NA 25.9 NA 23.4 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 5.7 NA 5.5 NA 5.5 NA 4.8 NA
CO2 (ppm)NA NA 360 NA 396 NA 360 NA 376 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 71.8 71.6 71.3 71.4 71.6 71.8 71.5 72.7 71.4
Relative Humidity (%)NA 25.9 26.3 25.7 25.6 25.8 25.6 25.8 25.4 26.1
Barometric Pressure (in Hg)NA 25.93 25.93 25.92 25.92 25.88 25.86 25.85 25.83 25.81
Air Speed (ft/min)NA 1 3 12 15 2 1 3 1 2
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 495 493 544 459 468 438 411 445 511
PID (ppm)NA 0.0 1.5 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 65.2 66.7 69.3 68.3 69.7 69 68.7 66 71.1
Relative Humidity (%)NA 61.0 53.0 39.0 34.0 40.0 40.0 40.0 41.0 58.0
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 27 8 0 0 0 8 0 0 57
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 520 500 500 500 500 500 480 460 440
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 69.3 64.8 66.6 66.2 68.3 67.9 66.8 66.9 67.5
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 0 0 17 0 0 0 41 0 16
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 440 420 400 380 380 360 380 360 340
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
11/17/2017
2/9/2018
11/18/2021
1/13/2022
IA-4
Page 4 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 West North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 67.7 NA 67.9 NA 68.1 NA 68.9 NA
Relative Humidity (%)NA NA 36.0 NA 36.0 NA 26.1 NA 23.3 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 4.7 NA 4.7 NA 5.4 NA 4.7 NA
CO2 (ppm)NA NA 560 NA 375 NA 374 NA 361 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 71.8 71.3 71.5 71.5 71.8 72.2 72.1 72.2 71.7
Relative Humidity (%)NA 21.9 23.0 22.4 21.2 20.6 20.8 21.4 21.1 21.2
Barometric Pressure (in Hg)NA 25.96 25.92 25.92 25.91 25.87 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 6 27 31 45 25 1 1 24 3
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 468 472 481 442 429 424 427 493 426
PID (ppm)NA 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 66.7 67.6 69.9 69.3 70.3 69.6 69.5 67 71.4
Relative Humidity (%)NA 61 53.0 39 34 40 40 40 41 58
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 66 96 76 0 63 46 46 80 58
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 480 480 500 500 480 480 460 440 440
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 69.8 66.1 67.3 67.3 69.2 69.1 67.5 67.7 68.1
Relative Humidity (%)NA 86 84.0 74 74 65 63 72 73 73
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 65 59 58 55 88 75 79 24 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 460 400 400 400 380 360 380 380 320
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
IA-5
11/17/2017
2/9/2018
11/18/2021
11/18/2021
Page 5 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 West North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 65.5 NA 66.6 NA 67.6 NA 68.0 NA
Relative Humidity (%)NA NA 37.1 NA 28.2 NA 27.4 NA 25.4 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 4.4 NA 5.0 NA 6.1 NA 4.8 NA
CO2 (ppm)NA NA 498 NA 370 NA 404 NA 343 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 71.8 71.2 71.8 71.4 71.3 71.9 72.6 72.5 72.3
Relative Humidity (%)NA 21.4 21.6 21.6 20.4 19.4 19.9 19.6 20.0 24.2
Barometric Pressure (in Hg)NA 25.93 25.92 25.92 25.91 25.87 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 4 15 11 12 3 4 3 9 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 495 455 460 417 414 409 439 416 438
PID (ppm)NA 0.0 0.0 0.0 0.1 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 68.3 68.7 70.5 70.1 70.6 70.1 70.2 68.1 71.3
Relative Humidity (%)NA 61.0 53.0 39.0 34.0 40.0 40.0 40.0 41.0 58.0
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 66 52 104 94 42 51 72 48 77
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 520 500 520 500 480 500 500 460 460
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 70.4 66.9 68.0 68.3 69.8 69.7 68.3 68.7 68.9
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 218 157 53 142 158 218 176 230 195
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 500 420 440 440 420 420 420 400 340
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)68.5 NA 71.7 72.8 72.5 72.9 72.5 74.9 73.5 73.0
Relative Humidity (%)44 NA 30 28 23 20 25 20 20 15
Barometric Pressure (in Hg)30.18 NA 30.19 30.19 30.17 30.16 30.14 30.14 30.08 30.07
Air Speed (ft/min)143.0 NA 95 86 118 117 172 107 138 135
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)0 NA 0 0 0 0 0 0 0 0
CO2 (ppm)440 NA 460 400 400 400 400 380 400 380
PID (ppm)0.0 NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)69.4 NA 70.2 69.4 NA 71.5 71.9 71.9 71.9 71.7
Relative Humidity (%)79 NA 62 43 NA 36 33 46 52 55
Barometric Pressure (in Hg)30.27 NA 30.22 30.21 NA 30.15 30.14 30.12 30.14 30.16
Air Speed (ft/min)118.0 NA 122 148 NA 68 54 43 48 55
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)0 NA 0 0 NA 0 0 0 0 0
CO2 (ppm)500 NA 480 460 NA 500 480 500 480 480
PID (ppm)0.1 NA 0.1 0.1 NA 0.0 0.1 0.2 0.0 0.0
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
2/9/2018
11/18/2021
1/13/2022
11/17/2017
11/10/2023
IA-6
4/28/2023
Page 6 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 W est North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 69.3 NA 63.4 NA 66.1 NA 66.3 NA
Relative Humidity (%)NA NA 26.4 NA 32.1 NA 31.1 NA 26.7 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 6.3 NA 6.0 NA 6.5 NA 5.0 NA
CO2 (ppm)NA NA 368 NA 351 NA 364 NA 334 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 71.1 70.9 70.9 71.0 71.4 71.4 71.3 71.8 71.7
Relative Humidity (%)NA 27.1 27.8 26.0 25.3 25.6 24.9 25.2 25.6 25.4
Barometric Pressure (in Hg)NA 25.92 25.92 25.92 25.91 25.87 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 50 3 75 32 81 71 61 61 30
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.2 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 468 474 431 406 389 421 426 409 386
PID (ppm)NA 0.1 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 67.0 62.6 66.7 64.3 68.2 66.9 66.1 62.2 69.9
Relative Humidity (%)NA 61 53 39 34 40 40 40 41 58
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 9 132 89 48 104 45 74 124 64
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 500 500 480 480 480 480 480 460 400
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 66.3 66.7 60.1 60.8 63.5 62.8 61.7 62.3 60.6
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 10 41 45 33 124 113 77 110 116
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 420 400 400 400 380 360 380 380 340
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
11/18/2021
1/13/2022
IA-7
11/17/2017
2/9/2018
Page 7 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 W est North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 45.9 NA 44.3 NA 40.8 NA 40.2 NA
Relative Humidity (%)NA NA 59.7 NA 69.1 NA 73.9 NA 64.8 NA
Barometric Pressure (in Hg)29.5 29.76 NA NA 29.8 NA 29.9 NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction Northwest East Northwest NA West NA Northwest NA Northwest NA
CO (ppm)NA NA 5.6 NA 4.5 NA 4.2 NA 4.5 NA
CO2 (ppm)NA NA 329 NA 332 NA 333 NA 358 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 52.8 57.8 72.9 63.6 66.8 67.8 65.3 65.4 60.2
Relative Humidity (%)NA 30.0 21.4 22.6 19.0 17.5 17.5 19.5 21.2 22.9
Barometric Pressure (in Hg)NA 25.93 25.93 25.93 25.91 25.88 25.86 25.85 25.83 25.81
Air Speed (ft/min)NA 312 142 26 746 342 69 152 228 428
Air Speed Direction NA East East Southwest West West Southwest East Northeast East
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 424 426 400 362 368 379 362 364 359
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 34.0 37.0 40.0 43.0 44.0 46.0 45.0 44.0 NA
Relative Humidity (%)NA 61.0 53.0 39.0 34.0 40.0 40.0 40.0 41.0 NA
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 NA
Air Speed (ft/min)NA 186 183 209 110 232 556 166 478 NA
Air Speed Direction NA Southwest Southwest Southwest Southwest Southwest West West West NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NA
CO2 (ppm)NA 440 400 400 400 400 400 400 380 NA
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 NA
Temperature (°F)NA 30 30 34 38 40 40 39 39 37
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 297 280 294 178 225 209 330 494 105
Air Speed Direction NA East West West West Northwest Northwest Northwest Northwest Northwest
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 440 400 400 360 420 340 380 320 340
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
11/17/2017
2/9/2018
11/18/2021
1/13/2022
OA-8
Page 8 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 W est North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 68.2 NA 69.9 NA 70.8 NA 69.7 NA
Relative Humidity (%)NA NA 27.8 NA 25.1 NA 23.5 NA 22.1 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 6.2 NA 7.8 NA 7.4 NA 5.5 NA
CO2 (ppm)NA NA 395 NA 349 NA 351 NA 344 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 69.8 69.5 70.3 70.3 70.3 70.6 70.8 70.8 70.9
Relative Humidity (%)NA 24.8 25.7 24.1 23.4 22.4 22.1 22.7 22.3 22.7
Barometric Pressure (in Hg)NA 25.92 25.93 25.92 25.91 25.88 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 3 24 3 26 0 25 2 17 16
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 502 513 453 430 436 427 431 427 389
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 67 61.4 65.9 65.3 67.8 66.6 65.5 61.5 69.6
Relative Humidity (%)NA 61 53 39 34 40 40 40 41 58
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 0 0 0 0 0 76 0 42 64
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 480.0 460 460 460 460 460 460 420 400
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 65.0 66.1 57.6 59.8 61.4 61.1 59.7 60.8 57.9
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.35 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 8 18 70 55 35 0 0 0 NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 400 400 400 420 420 400 380 400 360
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
IA-9
11/17/2017
2/9/2018
11/17/2017
2/9/2018
Page 9 of 10
TABLE 1
Indoor Air Field Parameters
Northrop Grumman Corporation
2211 W est North Temple
Salt Lake City, Utah
Sample ID Date Field Parameter Hour 1 Hour 2 Hour 3 Hour 4 Hour 5 Hour 6 Hour 7 Hour 8 Hour 9 Hour 10
(Stop)
Temperature (°F)NA NA 67.3 NA 68.1 NA 67.2 NA 67.3 NA
Relative Humidity (%)NA NA 28.3 NA 26.6 NA 26.4 NA 24.2 NA
Barometric Pressure (in Hg)NA NA NA NA NA NA NA NA NA NA
Air Speed (ft/min)NA NA NA NA NA NA NA NA NA NA
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA NA 6.9 NA 15.9 NA 12.6 NA 9.1 NA
CO2 (ppm)NA NA 347 NA 385 NA 368 NA 347 NA
PID (ppm)NA NA NA NA NA NA NA NA NA NA
Temperature (°F)NA 69.8 69.3 70.1 70.1 70.3 70.7 70.9 71.2 70.7
Relative Humidity (%)NA 24.6 24.2 21.6 20.2 18.7 18.9 19.0 19.4 19.4
Barometric Pressure (in Hg)NA 25.92 25.92 25.92 25.91 25.88 25.86 25.84 25.83 25.81
Air Speed (ft/min)NA 0 0 14 18 2 3 24 24 30
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 523 533 485 454 409 465 450 404 446
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 62.8 64.9 68.2 66.4 69.0 67.8 67.4 64.4 70.7
Relative Humidity (%)NA 61 53 39 34 40 40 40 41 58
Barometric Pressure (in Hg)NA 30.34 30.34 30.28 30.23 30.25 30.15 30.14 30.14 30.22
Air Speed (ft/min)NA 0 0 0 0 0 0 0 0 0
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 480 500 520 500 480 500 460 440 4440
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Temperature (°F)NA 68.6 63.7 65.0 64.4 66.8 66.6 65.6 65.7 66.0
Relative Humidity (%)NA 86.0 84.0 74.0 74.0 65.0 63.0 72.0 73.0 73.0
Barometric Pressure (in Hg)NA 30.39 30.40 30.35 30.04 30.30 30.25 30.21 30.14 30.16
Air Speed (ft/min)NA 0 69 72 47 54 58 52 0 25
Air Speed Direction NA NA NA NA NA NA NA NA NA NA
CO (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
CO2 (ppm)NA 460 380 380 360 340 320 380 340 300
PID (ppm)NA 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0
Notes:
°F - degrees Fahrenheit
% - percent
in Hg - inches of mercury
ft/min - feet per minute
CO - carbon monoxide
CO2 - carbon dioxide
ppm - parts per million
NA - not available
1/18/2021
1/13/2022
IA-10
11/17/2017
2/9/2018
Page 10 of 10
TABLE 2
Indoor and Outdoor Ambient Air VOC Laboratory Analytical Data
Northrop Grumman Systems Corporation
2211 West North Temple
Salt Lake City, Utah
Sample ID Date Location Sample
Start
Sample
Stop
Laboratory
Dilution
Factor
Acetone Benzene Chloro-
ethane Chloroform Cyclo-
hexane
1,4-
Dichloro
benzene
1,1-DCA 1,1-DCE
cis-
1,2-
DCE
trans-
1,2-DCE
1,4-
Dioxane Ethanol Ethyl-
benzene
4-Ethyl
toluene Freon 11 Freon 12 Freon 113 n-
Heptane Hexane Methylene
Chloride MEK
4-
Methyl-
2-
pentano
ne
N-Propyl
benzene
2-
Propanol PCE Tetra
hydrofuran Toluene 1,1,1-
TCA TCE 1,2,4-
TMB
1,3,5-
TMB
m,p-
Xylene
o-
Xylene
8/1/2013 8:11 19:25 1.8 220 E <0.29 <2.4 <0.88 <0.62 <1.1 <0.14 <0.071 <0.14 <0.71 <0.65 1.9 <0.16 <0.88 1.3 2.4 <1.4 <0.74 <0.63 <1.2 <2.6 <0.74 <0.88 120 <0.24 <2.6 ---<0.20 <0.19 <0.88 <0.88 ---<0.16
2/1/2014 8:36 19:11 1.72 17 0.59 <2.3 <0.84 <0.59 <1.0 <0.14 <0.068 <0.14 <0.68 <0.62 12 0.41 <0.84 1.2 2.8 <1.3 <0.70 1.0 <1.2 2.9 <0.70 <0.84 19 <0.23 2.9 ---<0.19 <0.18 <0.84 <0.84 ---0.32
11/17/2017 6:27 15:45 1 29 0.56 J <2.1 <1.5 <1.4 1.0 J <1.2 <3.2 <1.6 0.81 J <2.9 3.6 <1.7 0.94 J 1.6 J 1.4 J <3.1 <3.3 1.1 J 0.66 J 4.4 0.78 J 0.56 J 27 <2.7 3.9 1.5 <1.6 <2.1 1.4 J 0.85 J 1.1 J 0.49 J
2/9/2018 7:23 16:51 1 11 J 0.41 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 3.1 <1.7 <2.0 1.2 J 2.2 <3.1 <3.3 0.98 J 0.55 J <2.4 <1.6 <2.0 40 <2.7 <2.4 1.5 <1.6 <2.1 <3.9 <2.0 0.73 J 0.23 J
11/18/2021 8:30 17:47 5.29 78 <8.4 <28 <13 <9.1 NA <11 <10 <10 <10 <38 <50 <11 <13 <15 <13 <20 <11 <9.3 <92 <31 <11 NA 180 <18 <7.8 2.0 J <14 3900 <13 <13 <11 <11
1/13/2022 7:22 16:37 1.55 180 2.6 <8.2 <3.8 <2.7 NA <3.1 <3.1 <3.1 16 <11 92 1.2 J <3.8 1.5 J 2.8 J 3.2 J <3.2 2.4 J <27 <9.1 <3.2 NA 500 <5.2 2.1 J 6.9 <4.2 <4.2 <3.8 <3.8 3.9 <3.4
4/28/2023 7:24 17:17 1.78 47 <0.63 <3.0 <0.67 <0.59 NA <0.75 <0.89 <0.79 5.7 <0.71 7.4 J <0.86 <1.1 <0.98 2.3 J <1.6 <1.0 <0.89 <2.2 1.4 J <2.2 NA 110 <1.1 <0.80 1.6 J <0.91 <1.0 <1.5 <1.5 <1.4 <0.72
11/10/2023 7:25 14:45 2.08 44 <0.78 <3.8 <1.2 <1.3 NA <0.92 <2.1 <0.90 4.5 <3.4 13 J <1.1 <1.1 <1.9 <2.4 <1.7 <1.4 <1.1 <3.0 <2.1 <1.6 NA 140 <1.8 <2.0 1.8 J <1.4 <1.7 <1.4 <1.4 0.97 J <1.1
8/1/2013 8:25 19:34 1.81 73 0.50 <2.4 <0.88 <0.62 <1.1 <0.15 <0.072 <0.14 <0.72 <0.65 5.1 0.22 <0.89 1.8 2.4 <1.4 <0.74 0.65 <1.2 <2.7 <0.74 <0.89 160 <0.24 <2.7 ---<0.20 <0.19 <0.89 <0.89 ---0.24
2/1/2014 8:52 18:02 1.7 28 0.63 <2.2 <0.83 <0.58 <1.0 <0.14 <0.067 <0.13 <0.67 <0.61 6.4 0.54 <0.84 1.4 2.6 1.4 <0.70 4.9 <1.2 <2.5 <0.70 <0.84 55 <0.23 <2.5 ---<0.18 <0.18 <0.84 <0.84 ---0.67
11/17/2017 6:18 15:31 4.94 260 4.1 J <10 <7.2 <6.8 <12 <6.0 <16 <7.8 <7.8 <14 16 <8.6 <9.7 <11 <9.8 <15 <16 44 <6.9 <12 <8.1 <9.7 39 <13 <12 <7.4 <8.1 8.9 J <19 <9.7 2.9 J <8.6
12/15/2017*6:18 15:31 1 NA 1.7 <2.1 <1.5 <1.4 0.99 J <1.2 <3.2 <1.6 <1.6 1.2 J ---2.3 0.98 J 1.5 J 1.7 J <3.1 0.56 J NA 0.90 J 3.7 <1.6 0.59 J ---<2.7 <2.4 3.4 <1.6 <2.1 2.6 J 1.1 J 6.8 2.3
2/9/2018 6:36 16:36 1 7.9 J <1.3 <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 <1.9 <1.7 <2.0 <2.2 <2.0 <3.1 <3.3 <2.8 <1.4 <2.4 <1.6 <2.0 9.9 <2.7 <2.4 <1.5 <1.6 <2.1 <3.9 <2.0 <3.5 <1.7
11/18/2021 7:17 17:07 1.88 300 1.3 J <9.9 <4.6 <3.2 NA <3.8 <3.7 <3.7 72 <14 66 <4.1 <4.6 1.8 J 3.1 J <7.2 <3.8 8.6 <33 <11 <3.8 NA 880 <6.4 <2.8 3.9 <5.1 <5.0 <4.6 <4.6 2.5 J <4.1
1/13/2022 6:35 16:15 1.58 560 2.8 <8.3 <3.8 0.79 J NA <3.2 <3.1 <3.1 310 <11 110 1.3 J <3.9 1.5 J 2.2 J 5.8 J 1.5 J 3.6 4.2 J 3.4 J <3.2 NA 1400 E <5.4 <2.3 10 <4.3 <4.2 <3.9 <3.9 5.0 1.4 J
4/28/2023 6:58 16:58 1.75 140 <0.62 <3.2 <0.66 <0.58 NA <0.74 <0.88 <0.78 110 <0.70 14 J <0.85 <1.0 <0.96 2.3 J <1.5 <1.0 <0.88 <2.2 1.8 J <2.2 NA 430 <1.1 <0.79 1.2 J <0.90 <1.0 <1.5 <1.5 <1.3 <0.70
4/28/2023 (Dup-01)6:58 16:58 1.78 150 <0.63 <3.0 <0.67 <0.59 NA <0.75 <0.89 <0.79 120 <0.71 16 J <0.86 <1.1 0.99 J 2.1 J <1.6 <1.0 <0.89 <2.2 1.9 J <2.2 NA 480 <1.1 <0.80 1.2 J <0.91 <1.0 <1.5 <1.5 <1.4 <0.72
11/10/2023 7:05 17:05 1.61 230 0.73 J <2.9 <0.90 <1.0 NA <0.71 <1.6 <0.69 130 <2.7 20 <0.83 <0.88 <1.4 2.1 J <1.3 <1.1 4.9 <2.3 3.3 J <1.3 NA 460 <1.4 <1.4 2.3 J <1.1 <1.3 <1.1 <1.0 1.4 J <0.84
11/10/2023 (Dup-01)7:05 17:05 1.60 220 0.72 J <2.9 <0.89 <1.0 NA <0.71 <1.6 <3.2 140 <2.6 20 <0.83 <0.87 <1.4 <1.9 <1.3 <1.1 5.2 <2.3 <1.6 <1.3 NA 440 <1.4 <1.5 2.4 J <1.1 <1.3 <1.1 <1.0 1.3 J <0.83
8/1/2013 8:36 19:38 1.79 44 0.29 <2.4 <0.87 <0.62 <1.1 <0.14 <0.071 <0.14 <0.71 <0.64 3.6 <0.16 <0.88 1.6 2.5 1.7 <0.73 1.5 <1.2 <2.6 <2.6 <0.88 110 <0.24 <2.6 ---<0.20 <0.19 <0.88 <0.88 ---0.22
2/1/2014 8:58 18:58 1.68 30 0.67 <2.2 <0.82 1.0 <1.0 <0.14 <0.067 <0.13 <0.67 <0.60 7.9 0.96 <0.82 1.2 2.7 <1.3 1.5 2.4 2.0 2.7 <0.69 <0.82 82 0.67 <2.5 ---<0.18 0.22 <0.82 <0.82 ---0.87
11/17/2017 6:12 16:35 14 580 <18 <30 <21 <19 <34 <17 <44 <22 <22 <40 <26 <24 <28 <31 <28 <43 <46 <39 4.5 J <33 <23 <28 610 <38 <33 <21 <23 <30 <55 <28 <49 <24
12/15/2017*6:12 16:35 1 NA 0.81 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 1.4 J <2.9 ---0.96 J <2.0 1.7 J 1.7 J 1.2 J 0.37 J ---4.6 2.0 J <1.6 <2.0 ---<2.7 <2.4 2.3 <1.6 <2.1 <3.9 <2.0 3.5 1.1 J
2/9/2018 6:55 17:01 1 240 E 0.56 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 8.5 0.27 J <2.0 1.2 J 2.1 <3.1 0.36 J 18 1.3 J 0.71 J <1.6 <2.0 410 E <2.7 <2.4 2.0 <1.6 <2.1 <3.9 <2.0 1.1 J 0.31 J
11/18/2021 7:29 17:14 2.05 510 <3.3 <11 <5.0 <3.5 NA <4.1 <4.1 <4.1 38 <15 160 <4.4 <5.0 2.6 J 3.2 J 3.4 J <4.2 5.8 <36 <12 <4.2 NA 1500 E <5.5 <3.0 5.1 <5.6 <5.5 <5.0 <5.0 3.6 J <4.4
1/13/2022 6:40 16:18 1.58 500 2.6 <8.3 <3.8 0.81 J NA <3.2 <3.1 <3.1 100 <11 200 1.4 J <3.9 1.9 J 2.2 J 1.7 J 1.4 J 2.7 J <27 <9.3 <3.2 NA 1400 E 2.0 J <2.3 10 <4.3 3.4 J <3.9 <3.9 4.7 1.5 J
4/28/2023 7:05 17:05 1.87 340 <0.66 <3.2 <0.71 <0.62 NA <0.79 <0.94 <0.83 <0.84 <0.75 20 <0.91 <1.1 1.1 J 2.3 J <1.6 <1.1 <0.94 <2.3 1.6 J <2.3 NA 930 <1.2 <0.84 1.2 J <0.96 <1.1 <1.6 <1.6 2.7 J 0.77 J
11/10/2023 7:10 17:14 1.50 670 0.90 J <2.7 <0.84 <0.95 NA <0.66 <1.5 <3.0 <1.4 <2.5 26 <0.77 <0.82 1.4 J 1.9 J <1.2 <1.0 <0.83 <2.2 <1.5 <1.2 NA 1000 E <1.3 <1.4 3.5 J <1.0 <1.2 <1.0 <0.99 2.1 J <0.78
8/1/2013 8:43 19:46 1.78 94 0.3 <2.3 <0.87 <0.61 <1.1 <0.14 <0.070 <0.14 5 <0.64 6.3 0.26 <0.88 1.6 2.6 1.5 <0.73 6.1 2.8 <2.6 <0.73 <0.88 190 E <0.24 <2.6 ---<0.19 <0.19 <0.88 <0.88 ---0.34
2/1/2014 9:05 20:05 1.67 240E 0.69 <2.2 <0.82 <0.57 <1.0 <0.14 <0.066 <0.13 11 <0.60 8.3 0.70 <0.82 1.3 2.5 <1.3 <0.68 45 11 <2.5 <0.68 <0.82 450E <0.23 <2.5 ---<0.18 <0.18 <0.82 <0.82 ---0.85
2/1/2014 (BDS-1)9:05 20:05 1.67 200 E 0.66 <2.2 <0.82 <0.57 <1.0 <0.14 <0.066 <0.13 11 <0.60 9.5 0.76 <0.82 1.2 2.7 <1.3 <0.68 38 11 <2.5 <0.68 <0.82 430 E <0.24 <2.5 <0.18 <0.18 <0.82 <0.82 1.0
11/17/2017 6:10 15:53 25.1 560 <32 <53 <37 <35 <60 <30 <80 <40 <40 <72 <47 <44 <49 <56 <50 <77 <82 <71 19 J <59 <41 <49 3300 <68 <59 <38 <41 <54 <99 <49 <87 <44
12/15/2017*6:10 15:53 1 NA 0.55 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 24 <2.9 ---0.37 J <2.0 1.6 J 2.0 2.6 J <3.3 ---21 7.2 <1.6 <2.0 ---<2.7 <2.4 1.3 J <1.6 <2.1 <3.9 <2.0 1.4 J 0.45 J
2/9/2018 7:00 17:05 1 560 E 0.47 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 22 <2.9 7.2 <1.7 <2.0 1.3 J 2.3 4.3 0.37 J 520 E 14 1.5 J <1.6 <2.0 1600 E <2.7 <2.4 1.7 <1.6 <2.1 <3.9 <2.0 0.91 J 0.29 J
11/18/2021 7:38 17:16 6.29 680 <10 <33 <15 <11 NA <13 <12 <12 3,600 <45 85 <14 <15 <18 <16 <24 <13 500 26 J <37 <13 NA 4000 E <21 <9.3 3.5 J <17 <17 <15 <15 <14 <14
1/13/2022 6:55 16:25 4.64 390 <7.4 <24 <11 <8.0 NA <9.4 <9.2 <9.2 3,000 <33 140 <10 <11 <13 <11 <18 <9.5 7.4 J 24 J 21 J <9.5 NA 3100 E <16 <6.8 7.8 J <13 <12 <11 <11 <10 <10
NE 1.6 NE 0.53 26,000 1.1 7.7 880 180 180 2.5 NE 4.9 NE NE 440 22,000 1,800 3,100 1,00 22,000 13,000 4,400 NE 47 NE 22,000 22,000 3 260 260 440 440
Notes:
All results expressed as micrograms per cubic meter (µg/m3)
* - indicates samples collected on 11/17/2017 were rerun by laboratory
< - indicates concentration was reported below the laboratory limit of detection
E - Value exceeds instrument calibration range
J - Result is less than the reporting limit but greater than or equal to to the method detection limit. The concentration is an approximate value
DCA - dichloroethane
DCE - dichloroethene
Freon 11 - trichlorofluoromethane
Freon 12 - dichlorodifluoromethane
Freon 113 - 1,1,2-trichloro-1,2,2-trifluoroethane
MEK - methyl ethyl ketone (2-butanone)
PCE - tetrachloroethene
TCA - trichloroethane
TCE - trichloroethene
TMB - trimethylbenzene
NA - not analyzed
US EPA - United States Environmental Protection Agency
RSL - Regional Screening Level
NE - not established
BOLD indicates concentration exceeds the RSL
IA-4 Indoor
OA-1 Outdoor
IA-2 Indoor
IA-3 Indoor
USEPA Industrial Air RSL (November 2023)
Page 1 of 2
TABLE 2
Indoor and Outdoor Ambient Air VOC Laboratory Analytical Data
Northrop Grumman Systems Corporation
2211 West North Temple
Salt Lake City, Utah
Sample ID Date Location Sample
Start
Sample
Stop
Laboratory
Dilution
Factor
Acetone Benzene Chloro-
ethane Chloroform Cyclo-
hexane
1,4-
Dichloro
benzene
1,1-DCA 1,1-DCE
cis-
1,2-
DCE
trans-
1,2-DCE
1,4-
Dioxane Ethanol Ethyl-
benzene
4-Ethyl
toluene Freon 11 Freon 12 Freon 113 n-
Heptane Hexane Methylene
Chloride MEK
4-
Methyl-
2-
pentano
ne
N-Propyl
benzene
2-
Propanol PCE Tetra
hydrofuran Toluene 1,1,1-
TCA TCE 1,2,4-
TMB
1,3,5-
TMB
m,p-
Xylene
o-
Xylene
8/1/2013 8:49 19:57 1.78 320 E 0.48 <2.3 <0.87 <0.61 <1.1 <0.14 <0.070 <0.14 2.3 <0.64 5.6 J 0.75 <0.88 1.9 4.4 3.8 <0.73 1.6 13 <2.6 <0.73 <0.88 450 E <0.24 <2.6 ---<0.19 <0.19 <0.88 <0.88 ---0.85
2/1/2014 9:11 18:56 1.74 540E 0.61 <2.3 <0.85 <0.60 <1.0 <0.14 <0.069 <0.14 <0.69 <0.63 4.8 2.0 <0.86 1.2 2.8 <1.3 <0.71 0.90 <1.2 <2.6 <0.71 <0.86 320E <0.24 <2.6 ---<0.19 <0.19 <0.86 <0.86 ---2.9
11/17/2017 6:05 15:50 11.9 550 <15 <25 <17 <16 <29 <14 <38 <19 12 J <34 15 J <21 <23 <27 <24 <36 <39 4.7 J 5.4 J <28 <19 <23 1100 <32 <28 <18 <19 <26 <47 <23 <41 <21
12/15/2017*6:05 15:50 1 NA 0.60 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 13 <2.9 ---0.57 J <2.0 1.6 J 2.0 4.3 0.56 J ---4.5 3.7 <1.6 <2.0 ---<2.7 <2.4 2.1 <1.6 <2.1 <3.9 <2.0 2.1 J 0.67 J
2/9/2018 7:08 17:10 1 410 E 0.47 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 20 <2.9 8.9 0.40 J <2.0 1.2 J 1.9 J 5.1 0.54 J 160 3.9 1.4 J <1.6 <2.0 980 E <2.7 0.93 J 2.3 <1.6 <2.1 <3.9 <2.0 1.4 J 0.47 J
2/9/2018 (BDS-1)7:08 17:12 1 360 E 0.53 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 20 <2.9 6.5 <1.7 <2.0 1.3 J 2.0 <3.1 0.48 J 190 4.5 <2.4 <1.6 <2.0 330 E <2.7 0.75 J 3.1 <1.6 <2.1 <3.9 <2.0 0.74 J <1.7
11/18/2021 7:43 17:19 2.13 390 <3.4 <11 <5.2 <3.7 NA <4.3 <4.2 <4.2 130 <15 62 1.6 J <5.2 1.8 J 2.9 J 3.8 J <4.4 15 <37 <12 <4.4 NA 1100 E <7.2 <3.1 12 <5.8 <5.7 <5.2 <5.3 6.4 1.7 J
11/18/2021 (BDS-1)7:47 17:21 1.79 410 <2.8 <9.4 <4.4 <3.1 NA <3.6 <3.5 <3.5 140 <13 65 1.5 J <4.4 1.8 J 3.4 J 4.4 J <3.7 16.00 <31 <10 <3.7 NA 1200 E <4.8 <2.6 12 <4.9 <4.8 <4.4 <4.4 6.9 1.6 J
1/13/2022 7:00 16:28 1.62 420 2.5 J <8.5 <4.0 <2.8 NA <3.3 <3.2 <3.2 57 <12 77 <3.5 <4.0 1.5 J 2.4 J <6.2 <3.3 2.7 J <28 <9.6 <3.3 NA 1800 E 1.5 J <2.4 9.5 <4.4 <4.4 <4.0 <4.0 4.5 1.4 J
8/1/2013 9:29 19:57 1.67 420 E 0.35 <2.2 <0.82 <0.57 1.8 <0.14 <0.066 <0.13 1.2 <0.60 5.6 J 0.5 <0.82 1.6 3.6 2.9 <0.68 1.2 5.9 <2.5 <0.68 <0.82 790 E <0.23 <2.5 ---<0.18 <0.18 <0.82 <0.82 ---0.57
8/1/2013 (BDS-1)9:29 19:57 1.81 390 E 0.35 <2.4 <0.88 <0.62 1.5 <0.15 <0.072 <0.14 1.1 <0.65 5.7 J 0.5 <0.89 1.5 3.6 3.1 <0.74 1.0 5.7 <2.7 <0.74 <0.89 730 E <0.24 <2.7 ---<0.20 <0.19 <0.89 <0.89 ---0.5
2/1/2014 9:16 19:16 1.78 55 0.64 <2.3 <0.87 0.65 <1.1 <0.14 <0.070 <0.14 <0.70 0.66 6.9 0.74 <0.88 1.2 2.9 <1.4 1.4 0.97 <1.2 <2.6 <0.73 <0.88 180E 0.32 <2.6 ---<0.19 <0.19 <0.88 <0.88 ---0.91
11/17/2017 6:03 15:11 5.58 350 <7.1 <12 <8.2 <7.7 <13 <6.8 <18 <8.8 5.5 J <16 4.8 J <9.7 <11 <13 <11 <17 36 2.3 J 2.5 J <13 <9.1 <11 740 <15 <13 1.5 J <9.1 <12 <22 <11 <19 <9.7
11/17/2017 (BDS-1)6:04 15:09 8.15 360 <10 <17 <12 <11 <20 <9.9 <26 <13 5.0 J <23 4.3 J <14 <16 <18 <16 <25 33 <23 3.2 J <19 <13 <16 910 <22 <19 <12 <13 <18 <32 <16 <28 <14
12/15/2017*6:03 15:11 1 NA 0.49 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 5.1 <2.9 ---0.45 J <2.0 1.4 J 1.6 J 3.7 35 ---1.9 3.3 <1.6 <2.0 ---<2.7 <2.4 1.6 <1.6 0.88 J <3.9 <2.0 1.3 J 0.40 J
12/15/2017* (BDS-1)6:04 15:09 1 NA 0.52 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 5.5 <2.9 ---0.34 J <2.0 1.5 J 1.6 J 3.9 33 ---2.1 3.1 <1.6 <2.0 ---<2.7 1.2 J 1.4 J <1.6 0.73 J <3.9 <2.0 0.87 J 0.27 J
2/9/2018 7:15 17:15 1 230 E 0.48 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 2.0 <2.9 7.4 0.41 J <2.0 1.2 J 2.2 5.0 13 17 1.1 J 1.2 J <1.6 <2.0 2500 E <2.7 0.71 J 1.8 <1.6 8.6 <3.9 <2.0 1.2 J 0.36 J
11/18/2021 7:52 17:25 7.57 690 <12 <40 <18 <13 NA <15 <15 19 120 <54 87 <16 <19 <21 <19 <29 <16 13 J <130 <45 <16 NA 9600 E <26 <11 16 <21 5500 <19 <19 8.4 J <16
1/13/2022 7:04 16:31 3.87 670 <6.2 <20 <9.4 <6.7 NA <7.8 <7.7 <7.7 36 <28 140 <8.4 <9.5 <11 <9.6 <15 <7.9 2.8 J <67 <23 <7.9 NA 6500 E <13 <5.7 17 <10 <10 <9.5 <9.5 4.6 J <8.4
1/13/2022 (BDS-1)7:07 16:32 1.75 580 2.4 J <9.2 <4.3 <3.0 NA <3.5 <3.5 <3.5 46 <13 92 1.7 J <4.3 1.5 J 2.0 J 1.7 J <3.6 3.1 <30 <10 <3.6 NA 8000 E <5.9 <2.6 10 <4.8 <4.7 <4.3 <4.3 6.2 1.6 J
4/28/2023 7:10 17:10 1.71 150 <0.60 <2.9 <0.65 <0.57 NA <0.72 <0.86 <0.76 29 <0.68 14 J <0.83 <1.0 1.0 J 2.4 J <1.5 <0.97 <0.86 <2.1 1.7 J <2.1 NA 2200 E <1.1 <0.77 <0.83 <0.87 <1.0 <1.5 <1.4 <1.3 <0.69
11/10/2023 7:14 17:19 1.91 520 <0.72 <3.5 <1.1 <1.2 NA <0.84 <2.0 <0.82 85 <3.2 24 <0.99 <1.0 <1.7 <2.2 27 <1.3 <1.0 <2.8 <1.9 <1.5 NA 1900 E <1.7 <2.8 3.3 J <1.3 <1.5 <1.3 <1.2 1.9 J <0.99
8/1/2013 9:13 20:06 1.79 87 0.32 <2.4 <0.87 <0.61 <1.1 <0.14 <0.071 <0.14 <0.71 <0.64 6.0 J 0.43 <0.88 2.0 2.5 1.7 <0.73 29 3.4 <2.6 <0.73 <0.88 130 <0.24 <2.6 ---<0.20 <0.19 <0.88 <0.88 ---0.49
2/1/2014 9:25 18:55 1.75 62 0.65 <2.3 <0.85 <0.60 <1.0 <0.14 <0.069 <0.14 <0.69 <0.63 16 0.91 <0.86 1.3 2.7 1.4 <0.72 120 1.8 <2.6 <0.72 <0.86 87 <0.24 <2.6 ---<0.19 <0.19 <0.86 <0.86 ---1.2
11/17/2017 6:14 15:25 4.05 280 <5.2 <8.5 <5.9 <5.6 <9.7 <4.9 <13 <6.4 3.1 J <12 17 <7.0 <8.0 <9.1 <8.0 <12 <13 49 16 <9.6 <6.6 <8.0 420 <11 <9.6 3.8 J <6.6 <8.7 4.2 J <8.0 2.8 J <7.0
12/15/2017*6:14 15:25 1 NA 0.73 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 3.1 <2.9 ---0.57 J <2.0 1.8 J 1.9 J 1.8 J 0.44 J ---15 3.5 0.69 J <2.0 ---<2.7 <2.4 3.6 <1.6 <2.1 <3.9 <2.0 2.2 J 0.67 J
2/9/2018 6:50 16:48 1 480 E 0.63 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 12 0.32 J <2.0 1.3 J 2.1 <3.1 0.44 J <2.8 0.53 J 0.86 J <1.6 <2.0 660 E <2.7 <2.4 2.1 <1.6 <2.1 <3.9 <2.0 1.2 J 0.37 J
11/18/2021 7:11 17:04 1.89 680 1.1 J <10 <4.6 <3.2 NA <3.8 <3.7 <3.7 3.4 J <14 150 <4.1 <4.6 2.4 J 3.0 J <7.2 <3.9 1.7 J <33 <11 <3.9 NA 2100 E <6.4 <2.8 5.0 <5.2 <5.1 <4.6 <4.6 3.7 J <4.1
1/13/2022 6:30 16:12 1.75 810 2.8 <9.2 <4.3 <3.0 NA <3.5 <3.5 <3.5 2.2 J <13 180 1.5 J <4.3 1.7 J 2.4 J <6.7 1.5 J 2.5 J <30 3.4 J <3.6 NA 2200 E <5.9 <2.6 10 <4.8 <4.7 <4.3 <4.3 5.0 1.4 J
8/1/2013 9:43 20:25 1.93 6.7 <0.31 <2.5 <0.94 <0.66 <1.2 <0.16 <0.076 <0.15 <0.76 <0.70 2.1 J <0.17 <0.95 1.3 2.5 <1.5 0.79 1.0 <1.3 <2.8 <0.79 <0.95 <2.4 <0.26 <2.8 ---<0.21 <0.21 <0.95 <0.95 ---<0.17
2/1/2014 8:24 18:44 1.7 16 0.61 <2.2 <0.83 <0.58 <1.0 <0.14 <0.067 <0.13 <0.67 <0.61 10 0.81 <0.84 1.2 2.9 <1.3 <0.70 1.0 <1.2 6.5 <0.70 <0.84 14 <0.23 4.5 ---<0.18 <0.18 <0.84 <0.84 ---1.0
11/17/2017 6:45 16:11 1 8.8 J 0.56 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 0.37 J <1.6 <2.9 <1.9 <1.7 <2.0 1.8 J <2.0 <3.1 0.26 J 0.62 J 2.2 1.1 J 0.77 J <2.0 1.4 J 0.35 J <2.4 1.2 J <1.6 6.6 <3.9 <2.0 0.66 J <1.7
2/9/2018 7:35 17:30 1 7.9 J 0.47 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 3.7 <1.7 <2.0 1.2 J 2.1 <3.1 0.32 J <2.8 0.56 J 0.85 J <1.6 <2.0 1.9 J <2.7 <2.4 1.5 <1.6 <2.1 <3.9 <2.0 0.79 J 0.24 J
11/18/2021 8:03 17:33 1.84 28 <2.9 <9.7 <4.5 <3.2 NA <3.7 <3.6 <3.6 <3.6 <13 88 <4.0 <4.5 1.6 J 2.6 J <7.0 <3.8 1.2 J <32 <11 <3.8 NA 51 <6.2 <2.7 2.9 J <5.0 <4.9 <4.5 <4.5 1.9 J <4.0
1/13/2022 7:35 16:48 1.51 14 J 2.4 J <8.0 <3.7 0.77 J NA <3.0 <3.0 <3.0 <3.0 <11 25 <3.3 <3.7 1.2 J 2.2 J <5.8 <3.1 2.0 J <26 <8.9 <3.1 NA 10 <5.1 <2.2 6.1 <4.1 <4.0 <3.7 <3.7 3.4 <3.3
2/9/2018 6:46 16:45 1 230 E 0.65 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 9.6 0.27 J <2.0 1.3 J 2.3 <3.1 0.42 J 0.92 J 0.58 J 0.85 J <1.6 <2.0 290 E <2.7 <2.4 2.2 <1.6 <2.1 <3.9 <2.0 1.1 J 0.34 J
11/18/2021 7:02 17:02 1.84 45 1.2 J <9.7 <4.5 <3.2 NA <3.7 <3.6 <3.6 <3.6 <13 10 J <4.0 <4.5 1.8 J 3.0 J <7.0 <3.8 1.0 J <32 <11 <3.8 NA 78 <6.2 <2.7 2.3 J <5.0 <4.9 <4.5 <4.5 1.9 J <4.0
1/13/2022 6:23 16:08 1.55 100 2.7 <8.2 <3.8 0.92 J NA <3.1 <3.1 <3.1 <3.1 <11 31 <3.4 <3.8 1.6 J 2.1 J <5.9 <3.2 2.4 J <27 <9.1 <3.2 NA 140 <5.2 <2.3 7.1 <4.2 <4.2 <3.8 <3.8 3.7 1.2 J
11/17/2017 6:20 15:56 2.1 150 2.0 J <4.4 <3.1 <2.9 <5.1 <2.5 <6.7 <3.3 <3.3 <6.1 6.2 <3.6 <4.1 <4.7 2.4 J <6.4 <6.9 0.93 J 0.87 J <5.0 <3.4 <4.7 150 <5.7 <5.0 1.6 J <3.4 <4.5 <8.3 <4.1 1.3 J <3.6
12/15/2017*6:20 15:56 1 NA 1.8 <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 ---0.27 J <2.0 1.5 J 2.0 <3.1 0.40 J ---0.90 J 2.6 <1.6 <2.0 ---<2.7 <2.4 1.5 <1.6 <2.1 <3.9 <2.0 1.0 J 0.32 J
2/9/2018 6:42 16:40 1 17 0.59 J <2.1 <1.5 <1.4 <2.4 <1.2 <3.2 <1.6 <1.6 <2.9 4.6 <1.7 <2.0 1.2 J 2.3 2.1 J 0.27 J <2.8 0.56 J 0.96 J <1.6 <2.0 9.3 <2.7 <2.4 1.5 <1.6 <2.1 <3.9 <2.0 0.69 J <1.7
11/18/2021 7:23 17:10 1.89 67 1.5 J <10 <4.6 <3.2 NA <3.8 <3.7 <3.7 2.6 J <14 25 <4.1 <4.6 2.0 J 3.4 J <7.2 <3.9 1.7 J <33 <11 <3.9 NA 100 <6.4 <2.8 3.0 J <5.2 <5.1 <4.6 <4.6 2.4 J <4.1
1/13/2022 6:47 16:21 1.51 21 3.1 <8.0 <3.7 <2.6 NA <3.0 <3.0 <3.0 <3.0 <11 26 1.4 J <3.7 1.3 J 2.3 J <5.8 <3.1 2.0 J <26 <8.9 <3.1 NA 22 <5.1 <2.2 7.1 <4.1 <4.0 <3.7 <3.7 4.7 1.3 J
NE 1.6 NE 0.53 26,000 1.1 7.7 880 180 180 2.5 NE 4.9 NE NE 440 22,000 1,800 3,100 1,00 22,000 13,000 4,400 NE 47 NE 22,000 22,000 3 260 260 440 440
Notes:
All results expressed as micrograms per cubic meter (µg/m3)
* - indicates samples collected on 11/17/2017 were rerun by laboratory
< - indicates concentration was reported below the laboratory limit of detection
E - Value exceeds instrument calibration range
J - Result is less than the reporting limit but greater than or equal to to the method detection limit. The concentration is an approximate value
DCA - dichloroethane
DCE - dichloroethene
Freon 11 - trichlorofluoromethane
Freon 12 - dichlorodifluoromethane
Freon 113 - 1,1,2-trichloro-1,2,2-trifluoroethane
MEK - methyl ethyl ketone (2-butanone)
PCE - tetrachloroethene
TCA - trichloroethane
TCE - trichloroethene
TMB - trimethylbenzene
NA - not analyzed
US EPA - United States Environmental Protection Agency
RSL - Regional Screening Level
NE - not established
BOLD indicates concentration exceeds the RSL
USEPA Industrial Air RSL (November 2023)
IA-5 Indoor
IA-6 Indoor
IA-7 Indoor
OA-8 Outdoor
IA-9 Indoor
IndoorIA-10
Page 2 of 2
Figures
JOB NUMBER:DRAWN BY:CHECKED BY:APPROVED BY:193709721 TH AR CM
SITE LOCATION MAP
FIGURE:
DATE:02/28/20
1FOR:NORTHGROP GRUMMAN SYSTEMSCORPORATION2211 W. NORTH TEMPLESALT LAKE CITY, UTAH
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SITE LOCATION
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JOB NUMBER:DRAWN BY:CHECKED BY:APPROVED BY:193709721 TH AR CM
HISTORICAL SITE LAYOUT AND
SAMPLE LOCATIONS
FIGURE:
DATE:02/28/20
2FOR:NORTHGROP GRUMMAN SYSTEMSCORPORATION2211 W. NORTH TEMPLESALT LAKE CITY, UTAH
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x Soil Boring and Grab Groundwater Sample Location
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Chemical Dispensing Pre 1979 to 1983
Clarifier Pre 1979 to 1934
Current Water Treatment Area 1994 to Present
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Freon Tanks and Chem Storage Area pre 1979 to 1986 1165 SCHEURING ROAD DE PERE, WISCONSIN 54115 PHONE: 920.592.8400
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PHONE: 920.592.8400 JOB NUMBER:DRAWN BY:CHECKED BY:APPROVED BY:193709721 TH AR CM
FIGURE:
DATE:06/29/23
3FOR:NORTHGROP GRUMMAN SYSTEMSCORPORATION2211 W. NORTH TEMPLESALT LAKE CITY, UTAH
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Legend
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!(Boring by Secor (2005/2006)
&Geotechnical Boring
&<1" Monitoring Well by Secor (2005)
(&<2" Monitoring Well (1993)
!A 2" and 4" Monitoring Well by Stantec (2008)
x Soil Boring and Grab Groundwater Sample Location
ED Soil Test Pit and Grab Groundwater Sample Location
>(Soil Gas Sample Location (June 2009)ª!CPT Soundings (SECOR, 2007)
!?Indoor and Outdoor Ambient Air Sampling Location
Chemical Dispensing Pre 1979 to 1983
Clarifier Pre 1979 to 1934
Current Water Treatment Area 1994 to Present
Freon Tanks and Chem Storage Area 1986 to 1994
Freon Tanks and Chem Storage Area pre 1979 to 1986
INDOOR AIR SAMPLING LOCATIONS
Appendix A
Appendix A
Indoor Air Sampling Methodology
1 | Page
Indoor air and outdoor ambient air sampling was conducted following guidance outlined in the
Office of Solid Waste and Emergency Response (OSWER) Technical Guide for Assessing and
Mitigating the Vapor Intrusion Pathway from Subsurface Vapor Sources to Indoor Air (United
States Environmental Protection Agency – US EPA, June 2015). The events were conducted
during both a typical heating and cooling season configuration for the heating, ventilation, and air
conditioning (HVAC) system in each building. US EPA considers the heating season to fall
between the months of October and February.
Indoor Air Sampling Methods
Indoor air and outdoor ambient air samples were collected using 6-liter (L), passivated,
individually certified, stainless steel Summa™ canisters fitted with individually certified low-flow
controllers set to collect a sample over a 10-hour period. A 10-hour sample interval was selected
as representative of a typical shift schedule for employees. Canisters for indoor air sampling were
placed approximately three 3 to 4 feet off the ground. The low-flow controllers were connected
to canisters via a Swaglok™ compression fitting.
Canisters for outdoor ambient air sampling were collected concurrent with indoor air sampling.
The canisters were placed in an upwind position at ground level in an area near building and in
an area on the building roof near an HVAC system intake.
Indoor Air Sampling Field Parameters
Temperature, relative humidity, carbon monoxide (CO), and carbon dioxide (CO2) were collected
on an hourly basis (where access allowed) using a TSI Q-TRAK Plus 8554 IAQ monitor; wind
speed and wind direction were recording using a TSI 9665-P VelociCalc Plus. Volatile organic
compound concentrations were recorded using a photoionization detector (PID) MiniRae 3000.
Ambient air sampling field parameters were recorded on field sampling data logs, included as
Appendix B (April 2023) and Appendix C (November 2023) and summarized on Table 1.
Indoor Air Sample Collection and Analysis
Summa™ canister starting and ending times, vacuum readings, and field readings were recorded
on the field sampling data logs for each event. Canister tags were marked with a unique
identification number and the canisters shipped to the Eurofins Air Toxics, LLC (Eurofins) –
Folsom, California laboratory under chain-of-custody (COC) documentation for fixed-base
laboratory analysis. The COC noted the final canister vacuums readings and serial numbers of
the canisters and corresponding flow controllers. Canisters were analyzed for volatile organic
compounds under US EPA Method TO-15. The Eurofins - Folsom laboratory is certified in the
State of Utah.
Sample Storage and Transport
Indoor air and outdoor air confirmation samples were labeled with a unique sample identification
number and placed within secure packaging provided by the laboratory and stored at ambient
temperature.
Appendix A
Indoor Air Sampling Methodology
2 | Page
Quality Assurance and Quality Control
Analytical data was evaluated for accuracy and precision based on field and laboratory QA/QC
performance. Laboratory analytical reports include a QA/QC check for adherence to holding
times. Holding times are established by the US EPA and refer to the maximum allowable time to
pass between sample collection and analysis by the laboratory. A 30-day hold-time for Summa™
canister analysis under US EPA Method TO-15 is specified by the US EPA.
The analytical program includes laboratory control spikes and method blanks and are presented
as part of the final laboratory report, illustrating the prescribed range of acceptable limits for
analytical accuracy.
Appendix B
Appendix C
Appendix D
5/10/2023
Mr. Andrew Riemer
Stantec Consulting Corporation
1165 Scheuring Rd
De Pere WI 54115
Project Name: NORTHROP GRUMMAN
Project #: 193709165
Dear Mr. Andrew Riemer
The following report includes the data for the above referenced project for sample(s)
received on 5/1/2023 at Eurofins Air Toxics LLC.
The data and associated QC analyzed by TO-15 are compliant with the project
requirements or laboratory criteria with the exception of the deviations noted in the
attached case narrative.
Thank you for choosing Eurofins Air Toxics LLC. for your air analysis needs. Eurofins Air
Toxics Inc. is committed to providing accurate data of the highest quality. Please feel free
to contact the Project Manager: Jade White at 916-985-1000 if you have any questions
regarding the data in this report.
Regards,
Jade White
Project Manager
Workorder #: 2305014
Analytical Report
Page 1 of 29
Mr. Andrew Riemer
Stantec Consulting Corporation
1165 Scheuring Rd
De Pere, WI 54115
WORK ORDER #: 2305014
CLIENT:BILL TO:
PHONE:
Accounts Payable
Stantec Consulting Services Inc.
PO Box 6610
Broomfield, CO 80021
(920) 592-8400
05/01/2023
DATE COMPLETED:05/10/2023
P.O. #
PROJECT #193709165 NORTHROP GRUMMAN
Work Order Summary
FAX:
DATE RECEIVED:CONTACT:Jade White
NAMEFRACTION #TEST VAC./PRES.
RECEIPT
PRESSURE
FINAL
01A IA-2 TO-15 10.8 "Hg 1.8 psi
02A IA-3 TO-15 11.8 "Hg 2 psi
03A IA-6 TO-15 10.2 "Hg 1.9 psi
04A OA-1 TO-15 11 "Hg 1.9 psi
05A DUP-01 TO-15 11 "Hg 1.9 psi
06A Lab Blank TO-15 NA NA
06B Lab Blank TO-15 NA NA
07A CCV TO-15 NA NA
07B CCV TO-15 NA NA
08A LCS TO-15 NA NA
08AA LCSD TO-15 NA NA
08B LCS TO-15 NA NA
08BB LCSD TO-15 NA NA
CERTIFIED BY:
Technical Director
DATE: 05/10/23
Page 2 of 29
Certification numbers: AZ Licensure AZ0775, FL NELAP – E87680, LA NELAP – 02089, NH NELAP – 209222, NJ NELAP - CA016,
NY NELAP - 11291, TX NELAP – T104704434-22-18, UT NELAP – CA009332022-14, VA NELAP - 12240, WA ELAP - C935
Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program) CA300005-017
Eurofins Environment Testing Northern California, LLC certifies that the test results contained in this report meet
all requirements of the 2016 TNI Standard.
This report shall not be reproduced, except in full, without the written approval of Eurofins Air Toxics, LLC.
180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630
(916) 985-1000 . (800) 985-5955 . FAX (916) 351-8279
LABORATORY NARRATIVE
EPA Method TO-15
Stantec Consulting Corporation
Workorder# 2305014
Five 6 Liter Summa Canister samples were received on May 01, 2023. The laboratory performed analysis
via EPA Method TO-15 using GC/MS in the full scan mode.
There were no receiving discrepancies.
Receiving Notes
There were no analytical discrepancies.
Analytical Notes
Ten qualifiers may have been used on the data analysis sheets and indicates as follows:
B - Compound present in laboratory blank greater than reporting limit (background subtraction not
performed).
J - Estimated value.
E - Exceeds instrument calibration range.
S - Saturated peak.
Q - Exceeds quality control limits.
U - Compound analyzed for but not detected above the reporting limit, LOD, or MDL value. See
data page for project specific U-flag definition.
UJ- Non-detected compound associated with low bias in the CCV
N - The identification is based on presumptive evidence.
M - Reported value may be biased due to apparent matrix interferences.
CN - See Case Narrative.
File extensions may have been used on the data analysis sheets and indicates
as follows:
a-File was requantified
b-File was quantified by a second column and detector
r1-File was requantified for the purpose of reissue
Definition of Data Qualifying Flags
Page 3 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 01:18 AM
1.75
msd91.i / 91050825
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-01A
4/28/23 04:58 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
IA-2
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.80.90 Not Detected2.4
1,1-Dichloroethane 75-34-3 3.50.74 Not Detected1.8
1,1-Dichloroethene 75-35-4 3.50.88 Not Detected2.6
1,2,4-Trimethylbenzene 95-63-6 4.31.5 Not Detected3.2
1,2-Dichloroethane 107-06-2 3.50.81 Not Detected2.6
1,3,5-Trimethylbenzene 108-67-8 4.31.5 Not Detected3.2
1,4-Dioxane 123-91-1 130.70 Not Detected4.7
2-Butanone (Methyl Ethyl Ketone)78-93-3 101.2 1.8 J8.8
2-Propanol 67-63-0 8.62.7 4307.3
4-Ethyltoluene 622-96-8 4.31.0 Not Detected3.2
4-Methyl-2-pentanone 108-10-1 3.62.2 Not Detected2.7
Acetone 67-64-1 217.6 14010
Benzene 71-43-2 2.80.62 Not Detected2.1
Chloroethane 75-00-3 9.23.0 Not Detected7.8
Chloroform 67-66-3 4.30.66 Not Detected2.1
cis-1,2-Dichloroethene 156-59-2 3.50.78 Not Detected2.6
Cyclohexane 110-82-7 3.00.58 Not Detected2.2
Ethanol 64-17-5 166.9 14 J8.2
Ethyl Benzene 100-41-4 3.80.85 Not Detected2.8
Freon 11 75-69-4 4.90.96 Not Detected3.7
Freon 113 76-13-1 6.71.5 Not Detected5.0
Freon 12 75-71-8 4.30.64 2.3 J3.2
Heptane 142-82-5 3.61.0 Not Detected2.7
Hexane 110-54-3 3.10.88 Not Detected2.3
Page 4 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 01:18 AM
1.75
msd91.i / 91050825
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-01A
4/28/23 04:58 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
IA-2
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 7.61.3 Not Detected2.8
Methylene Chloride 75-09-2 302.2 Not Detected10
o-Xylene 95-47-6 3.80.70 Not Detected2.8
Propylbenzene 103-65-1 4.30.55 Not Detected3.2
Tetrachloroethene 127-18-4 5.91.1 Not Detected4.4
Tetrahydrofuran 109-99-9 2.60.79 Not Detected1.9
Toluene 108-88-3 6.60.85 1.2 J2.5
trans-1,2-Dichloroethene 156-60-5 3.50.78 1102.6
Trichloroethene 79-01-6 4.71.0 Not Detected3.5
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 110
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 97
Page 5 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 03:09 PM
1.87
msd91.i / 91050907
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-02A
4/28/23 05:05 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
IA-3
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 5.10.96 Not Detected2.6
1,1-Dichloroethane 75-34-3 3.80.79 Not Detected1.9
1,1-Dichloroethene 75-35-4 3.70.94 Not Detected2.8
1,2,4-Trimethylbenzene 95-63-6 4.61.6 Not Detected3.4
1,2-Dichloroethane 107-06-2 3.80.87 Not Detected2.8
1,3,5-Trimethylbenzene 108-67-8 4.61.6 Not Detected3.4
1,4-Dioxane 123-91-1 130.75 Not Detected5.0
2-Butanone (Methyl Ethyl Ketone)78-93-3 111.3 1.6 J9.4
2-Propanol 67-63-0 9.22.9 9307.8
4-Ethyltoluene 622-96-8 4.61.1 Not Detected3.4
4-Methyl-2-pentanone 108-10-1 3.82.3 Not Detected2.9
Acetone 67-64-1 228.2 34011
Benzene 71-43-2 3.00.66 Not Detected2.2
Chloroethane 75-00-3 9.93.2 Not Detected8.4
Chloroform 67-66-3 4.60.71 Not Detected2.3
cis-1,2-Dichloroethene 156-59-2 3.70.83 Not Detected2.8
Cyclohexane 110-82-7 3.20.62 Not Detected2.4
Ethanol 64-17-5 187.4 208.8
Ethyl Benzene 100-41-4 4.00.91 Not Detected3.0
Freon 11 75-69-4 5.21.0 1.1 J3.9
Freon 113 76-13-1 7.21.6 Not Detected5.4
Freon 12 75-71-8 4.60.68 2.3 J3.5
Heptane 142-82-5 3.81.1 Not Detected2.9
Hexane 110-54-3 3.30.94 Not Detected2.5
Page 6 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 03:09 PM
1.87
msd91.i / 91050907
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-02A
4/28/23 05:05 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
IA-3
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 8.11.4 2.7 J3.0
Methylene Chloride 75-09-2 322.3 Not Detected11
o-Xylene 95-47-6 4.10.75 0.77 J3.0
Propylbenzene 103-65-1 4.60.59 Not Detected3.4
Tetrachloroethene 127-18-4 6.31.2 Not Detected4.8
Tetrahydrofuran 109-99-9 2.80.84 Not Detected2.1
Toluene 108-88-3 7.00.91 1.2 J2.6
trans-1,2-Dichloroethene 156-60-5 3.70.84 Not Detected2.8
Trichloroethene 79-01-6 5.01.1 Not Detected3.8
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 111
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 95
Page 7 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 03:35 PM
1.71
msd91.i / 91050908
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-03A
4/28/23 05:10 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
IA-6
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.70.87 Not Detected2.3
1,1-Dichloroethane 75-34-3 3.50.72 Not Detected1.7
1,1-Dichloroethene 75-35-4 3.40.86 Not Detected2.5
1,2,4-Trimethylbenzene 95-63-6 4.21.5 Not Detected3.2
1,2-Dichloroethane 107-06-2 3.50.79 Not Detected2.6
1,3,5-Trimethylbenzene 108-67-8 4.21.4 Not Detected3.2
1,4-Dioxane 123-91-1 120.68 Not Detected4.6
2-Butanone (Methyl Ethyl Ketone)78-93-3 101.2 1.7 J8.6
2-Propanol 67-63-0 8.42.6 2200 E7.1
4-Ethyltoluene 622-96-8 4.21.0 Not Detected3.2
4-Methyl-2-pentanone 108-10-1 3.52.1 Not Detected2.6
Acetone 67-64-1 207.5 15010
Benzene 71-43-2 2.70.60 Not Detected2.0
Chloroethane 75-00-3 9.02.9 Not Detected7.7
Chloroform 67-66-3 4.20.65 Not Detected2.1
cis-1,2-Dichloroethene 156-59-2 3.40.76 Not Detected2.5
Cyclohexane 110-82-7 2.90.57 Not Detected2.2
Ethanol 64-17-5 166.8 14 J8.0
Ethyl Benzene 100-41-4 3.70.83 Not Detected2.8
Freon 11 75-69-4 4.80.94 1.0 J3.6
Freon 113 76-13-1 6.61.5 Not Detected4.9
Freon 12 75-71-8 4.20.62 2.4 J3.2
Heptane 142-82-5 3.50.97 Not Detected2.6
Hexane 110-54-3 3.00.86 Not Detected2.2
Page 8 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 03:35 PM
1.71
msd91.i / 91050908
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-03A
4/28/23 05:10 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
IA-6
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 7.41.3 Not Detected2.8
Methylene Chloride 75-09-2 302.1 Not Detected10
o-Xylene 95-47-6 3.70.69 Not Detected2.8
Propylbenzene 103-65-1 4.20.54 Not Detected3.2
Tetrachloroethene 127-18-4 5.81.1 Not Detected4.3
Tetrahydrofuran 109-99-9 2.50.77 Not Detected1.9
Toluene 108-88-3 6.40.83 Not Detected2.4
trans-1,2-Dichloroethene 156-60-5 3.40.77 292.5
Trichloroethene 79-01-6 4.61.0 Not Detected3.4
J = Estimated value.
E = Exceeds instrument calibration range.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 110
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 97
Page 9 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 04:01 PM
1.78
msd91.i / 91050909
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-04A
4/28/23 05:17 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
OA-1
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.80.91 Not Detected2.4
1,1-Dichloroethane 75-34-3 3.60.75 Not Detected1.8
1,1-Dichloroethene 75-35-4 3.50.89 Not Detected2.6
1,2,4-Trimethylbenzene 95-63-6 4.41.5 Not Detected3.3
1,2-Dichloroethane 107-06-2 3.60.82 Not Detected2.7
1,3,5-Trimethylbenzene 108-67-8 4.41.5 Not Detected3.3
1,4-Dioxane 123-91-1 130.71 Not Detected4.8
2-Butanone (Methyl Ethyl Ketone)78-93-3 101.2 1.4 J8.9
2-Propanol 67-63-0 8.72.7 1107.4
4-Ethyltoluene 622-96-8 4.41.1 Not Detected3.3
4-Methyl-2-pentanone 108-10-1 3.62.2 Not Detected2.7
Acetone 67-64-1 217.8 4710
Benzene 71-43-2 2.80.63 Not Detected2.1
Chloroethane 75-00-3 9.43.0 Not Detected8.0
Chloroform 67-66-3 4.30.67 Not Detected2.2
cis-1,2-Dichloroethene 156-59-2 3.50.79 Not Detected2.6
Cyclohexane 110-82-7 3.10.59 Not Detected2.3
Ethanol 64-17-5 177.1 7.4 J8.4
Ethyl Benzene 100-41-4 3.90.86 Not Detected2.9
Freon 11 75-69-4 5.00.98 Not Detected3.8
Freon 113 76-13-1 6.81.6 Not Detected5.1
Freon 12 75-71-8 4.40.65 2.3 J3.3
Heptane 142-82-5 3.61.0 Not Detected2.7
Hexane 110-54-3 3.10.89 Not Detected2.4
Page 10 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 04:01 PM
1.78
msd91.i / 91050909
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-04A
4/28/23 05:17 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
OA-1
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 7.71.4 Not Detected2.9
Methylene Chloride 75-09-2 312.2 Not Detected10
o-Xylene 95-47-6 3.90.72 Not Detected2.9
Propylbenzene 103-65-1 4.40.56 Not Detected3.3
Tetrachloroethene 127-18-4 6.01.1 Not Detected4.5
Tetrahydrofuran 109-99-9 2.60.80 Not Detected2.0
Toluene 108-88-3 6.70.86 1.6 J2.5
trans-1,2-Dichloroethene 156-60-5 3.50.80 5.72.6
Trichloroethene 79-01-6 4.81.0 Not Detected3.6
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 110
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 96
Page 11 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 04:27 PM
1.78
msd91.i / 91050910
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-05A
4/28/23 04:58 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
DUP-01
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.80.91 Not Detected2.4
1,1-Dichloroethane 75-34-3 3.60.75 Not Detected1.8
1,1-Dichloroethene 75-35-4 3.50.89 Not Detected2.6
1,2,4-Trimethylbenzene 95-63-6 4.41.5 Not Detected3.3
1,2-Dichloroethane 107-06-2 3.60.82 Not Detected2.7
1,3,5-Trimethylbenzene 108-67-8 4.41.5 Not Detected3.3
1,4-Dioxane 123-91-1 130.71 Not Detected4.8
2-Butanone (Methyl Ethyl Ketone)78-93-3 101.2 1.9 J8.9
2-Propanol 67-63-0 8.72.7 4807.4
4-Ethyltoluene 622-96-8 4.41.1 Not Detected3.3
4-Methyl-2-pentanone 108-10-1 3.62.2 Not Detected2.7
Acetone 67-64-1 217.8 15010
Benzene 71-43-2 2.80.63 Not Detected2.1
Chloroethane 75-00-3 9.43.0 Not Detected8.0
Chloroform 67-66-3 4.30.67 Not Detected2.2
cis-1,2-Dichloroethene 156-59-2 3.50.79 Not Detected2.6
Cyclohexane 110-82-7 3.10.59 Not Detected2.3
Ethanol 64-17-5 177.1 16 J8.4
Ethyl Benzene 100-41-4 3.90.86 Not Detected2.9
Freon 11 75-69-4 5.00.98 0.99 J3.8
Freon 113 76-13-1 6.81.6 Not Detected5.1
Freon 12 75-71-8 4.40.65 2.1 J3.3
Heptane 142-82-5 3.61.0 Not Detected2.7
Hexane 110-54-3 3.10.89 Not Detected2.4
Page 12 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 04:27 PM
1.78
msd91.i / 91050910
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-05A
4/28/23 04:58 PM
6 Liter Summa Canister
NORTHROP GRUMMAN
DUP-01
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 7.71.4 Not Detected2.9
Methylene Chloride 75-09-2 312.2 Not Detected10
o-Xylene 95-47-6 3.90.72 Not Detected2.9
Propylbenzene 103-65-1 4.40.56 Not Detected3.3
Tetrachloroethene 127-18-4 6.01.1 Not Detected4.5
Tetrahydrofuran 109-99-9 2.60.80 Not Detected2.0
Toluene 108-88-3 6.70.86 1.2 J2.5
trans-1,2-Dichloroethene 156-60-5 3.50.80 1202.6
Trichloroethene 79-01-6 4.81.0 Not Detected3.6
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 111
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 97
Page 13 of 29
Dilution Factor:
Instrument/Filename:
5/8/23 12:57 PM
1.00
msd91.i / 91050807d
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-06A
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
Lab Blank
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 2.70.51 Not Detected1.4
1,1-Dichloroethane 75-34-3 2.00.42 Not Detected1.0
1,1-Dichloroethene 75-35-4 2.00.50 Not Detected1.5
1,2,4-Trimethylbenzene 95-63-6 2.40.86 Not Detected1.8
1,2-Dichloroethane 107-06-2 2.00.46 Not Detected1.5
1,3,5-Trimethylbenzene 108-67-8 2.40.84 Not Detected1.8
1,4-Dioxane 123-91-1 7.20.40 Not Detected2.7
2-Butanone (Methyl Ethyl Ketone)78-93-3 5.90.71 Not Detected5.0
2-Propanol 67-63-0 4.91.5 Not Detected4.2
4-Ethyltoluene 622-96-8 2.40.60 Not Detected1.8
4-Methyl-2-pentanone 108-10-1 2.01.2 Not Detected1.5
Acetone 67-64-1 124.4 Not Detected5.9
Benzene 71-43-2 1.60.35 Not Detected1.2
Chloroethane 75-00-3 5.31.7 Not Detected4.5
Chloroform 67-66-3 2.40.38 Not Detected1.2
cis-1,2-Dichloroethene 156-59-2 2.00.45 Not Detected1.5
Cyclohexane 110-82-7 1.70.33 Not Detected1.3
Ethanol 64-17-5 9.44.0 Not Detected4.7
Ethyl Benzene 100-41-4 2.20.48 Not Detected1.6
Freon 11 75-69-4 2.80.55 Not Detected2.1
Freon 113 76-13-1 3.80.88 Not Detected2.9
Freon 12 75-71-8 2.50.36 0.39 J1.8
Heptane 142-82-5 2.00.57 Not Detected1.5
Hexane 110-54-3 1.80.50 Not Detected1.3
Page 14 of 29
Dilution Factor:
Instrument/Filename:
5/8/23 12:57 PM
1.00
msd91.i / 91050807d
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-06A
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
Lab Blank
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 4.30.76 Not Detected1.6
Methylene Chloride 75-09-2 171.2 Not Detected5.9
o-Xylene 95-47-6 2.20.40 Not Detected1.6
Propylbenzene 103-65-1 2.40.32 Not Detected1.8
Tetrachloroethene 127-18-4 3.40.64 Not Detected2.5
Tetrahydrofuran 109-99-9 1.50.45 Not Detected1.1
Toluene 108-88-3 3.80.48 Not Detected1.4
trans-1,2-Dichloroethene 156-60-5 2.00.45 Not Detected1.5
Trichloroethene 79-01-6 2.70.59 Not Detected2.0
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 109
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 97
Page 15 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 01:14 PM
1.00
msd91.i / 91050906a
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-06B
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
Lab Blank
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 2.70.51 Not Detected1.4
1,1-Dichloroethane 75-34-3 2.00.42 Not Detected1.0
1,1-Dichloroethene 75-35-4 2.00.50 Not Detected1.5
1,2,4-Trimethylbenzene 95-63-6 2.40.86 Not Detected1.8
1,2-Dichloroethane 107-06-2 2.00.46 Not Detected1.5
1,3,5-Trimethylbenzene 108-67-8 2.40.84 Not Detected1.8
1,4-Dioxane 123-91-1 7.20.40 Not Detected2.7
2-Butanone (Methyl Ethyl Ketone)78-93-3 5.90.71 Not Detected5.0
2-Propanol 67-63-0 4.91.5 Not Detected4.2
4-Ethyltoluene 622-96-8 2.40.60 Not Detected1.8
4-Methyl-2-pentanone 108-10-1 2.01.2 Not Detected1.5
Acetone 67-64-1 124.4 Not Detected5.9
Benzene 71-43-2 1.60.35 Not Detected1.2
Chloroethane 75-00-3 5.31.7 Not Detected4.5
Chloroform 67-66-3 2.40.38 Not Detected1.2
cis-1,2-Dichloroethene 156-59-2 2.00.45 Not Detected1.5
Cyclohexane 110-82-7 1.70.33 Not Detected1.3
Ethanol 64-17-5 9.44.0 Not Detected4.7
Ethyl Benzene 100-41-4 2.20.48 Not Detected1.6
Freon 11 75-69-4 2.80.55 Not Detected2.1
Freon 113 76-13-1 3.80.88 Not Detected2.9
Freon 12 75-71-8 2.50.36 0.40 J1.8
Heptane 142-82-5 2.00.57 Not Detected1.5
Hexane 110-54-3 1.80.50 Not Detected1.3
Page 16 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 01:14 PM
1.00
msd91.i / 91050906a
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-06B
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
Lab Blank
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 4.30.76 Not Detected1.6
Methylene Chloride 75-09-2 171.2 Not Detected5.9
o-Xylene 95-47-6 2.20.40 Not Detected1.6
Propylbenzene 103-65-1 2.40.32 Not Detected1.8
Tetrachloroethene 127-18-4 3.40.64 Not Detected2.5
Tetrahydrofuran 109-99-9 1.50.45 Not Detected1.1
Toluene 108-88-3 3.80.48 Not Detected1.4
trans-1,2-Dichloroethene 156-60-5 2.00.45 Not Detected1.5
Trichloroethene 79-01-6 2.70.59 Not Detected2.0
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 109
4-Bromofluorobenzene 460-00-4 70-130 103
Toluene-d8 2037-26-5 70-130 97
Page 17 of 29
Dilution Factor:
Instrument/Filename:
5/8/23 11:50 AM
1.00
msd91.i / 91050806
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-07A
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
CCV
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 95
1,1-Dichloroethane 75-34-3 97
1,1-Dichloroethene 75-35-4 112
1,2,4-Trimethylbenzene 95-63-6 95
1,2-Dichloroethane 107-06-2 89
1,3,5-Trimethylbenzene 108-67-8 92
1,4-Dioxane 123-91-1 107
2-Butanone (Methyl Ethyl Ketone)78-93-3 100
2-Propanol 67-63-0 124
4-Ethyltoluene 622-96-8 98
4-Methyl-2-pentanone 108-10-1 92
Acetone 67-64-1 103
Benzene 71-43-2 98
Chloroethane 75-00-3 100
Chloroform 67-66-3 95
cis-1,2-Dichloroethene 156-59-2 104
Cyclohexane 110-82-7 98
Ethanol 64-17-5 104
Ethyl Benzene 100-41-4 95
Freon 11 75-69-4 83
Freon 113 76-13-1 109
Freon 12 75-71-8 85
Heptane 142-82-5 93
Hexane 110-54-3 98
Page 18 of 29
Dilution Factor:
Instrument/Filename:
5/8/23 11:50 AM
1.00
msd91.i / 91050806
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-07A
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
CCV
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 93
Methylene Chloride 75-09-2 99
o-Xylene 95-47-6 94
Propylbenzene 103-65-1 92
Tetrachloroethene 127-18-4 99
Tetrahydrofuran 109-99-9 94
Toluene 108-88-3 87
trans-1,2-Dichloroethene 156-60-5 111
Trichloroethene 79-01-6 94
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 98
4-Bromofluorobenzene 460-00-4 70-130 100
Toluene-d8 2037-26-5 70-130 99
Page 19 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 10:19 AM
1.00
msd91.i / 91050903
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-07B
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
CCV
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 95
1,1-Dichloroethane 75-34-3 99
1,1-Dichloroethene 75-35-4 114
1,2,4-Trimethylbenzene 95-63-6 96
1,2-Dichloroethane 107-06-2 93
1,3,5-Trimethylbenzene 108-67-8 93
1,4-Dioxane 123-91-1 106
2-Butanone (Methyl Ethyl Ketone)78-93-3 96
2-Propanol 67-63-0 128
4-Ethyltoluene 622-96-8 98
4-Methyl-2-pentanone 108-10-1 88
Acetone 67-64-1 106
Benzene 71-43-2 93
Chloroethane 75-00-3 110
Chloroform 67-66-3 97
cis-1,2-Dichloroethene 156-59-2 103
Cyclohexane 110-82-7 98
Ethanol 64-17-5 111
Ethyl Benzene 100-41-4 95
Freon 11 75-69-4 94
Freon 113 76-13-1 106
Freon 12 75-71-8 103
Heptane 142-82-5 87
Hexane 110-54-3 98
Page 20 of 29
Dilution Factor:
Instrument/Filename:
5/9/23 10:19 AM
1.00
msd91.i / 91050903
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-07B
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
CCV
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 93
Methylene Chloride 75-09-2 104
o-Xylene 95-47-6 95
Propylbenzene 103-65-1 91
Tetrachloroethene 127-18-4 101
Tetrahydrofuran 109-99-9 94
Toluene 108-88-3 85
trans-1,2-Dichloroethene 156-60-5 106
Trichloroethene 79-01-6 96
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 97
4-Bromofluorobenzene 460-00-4 70-130 101
Toluene-d8 2037-26-5 70-130 97
Page 21 of 29
Dilution Factor:
Instrument/Filename:
5/8/23 10:37 AM
1.00
msd91.i / 91050804
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08A
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCS
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 95
1,1-Dichloroethane 75-34-3 95
1,1-Dichloroethene 75-35-4 106
1,2,4-Trimethylbenzene 95-63-6 96
1,2-Dichloroethane 107-06-2 83
1,3,5-Trimethylbenzene 108-67-8 92
1,4-Dioxane 123-91-1 94
2-Butanone (Methyl Ethyl Ketone)78-93-3 95
2-Propanol 67-63-0 116
4-Ethyltoluene 622-96-8 97
4-Methyl-2-pentanone 108-10-1 90
Acetone 67-64-1 106
Benzene 71-43-2 90
Chloroethane 75-00-3 105
Chloroform 67-66-3 92
cis-1,2-Dichloroethene 156-59-2 101
Cyclohexane 110-82-7 99
Ethanol 64-17-5 118
Ethyl Benzene 100-41-4 96
Freon 11 75-69-4 89
Freon 113 76-13-1 102
Freon 12 75-71-8 97
Heptane 142-82-5 87
Hexane 110-54-3 95
Page 22 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/8/23 10:37 AM
1.00
msd91.i / 91050804
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08A
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCS
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 93
Methylene Chloride 75-09-2 99
o-Xylene 95-47-6 96
Propylbenzene 103-65-1 91
Tetrachloroethene 127-18-4 100
Tetrahydrofuran 109-99-9 97
Toluene 108-88-3 83
trans-1,2-Dichloroethene 156-60-5 102
Trichloroethene 79-01-6 92
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 96
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 98
Page 23 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/8/23 11:04 AM
1.00
msd91.i / 91050805
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08AA
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCSD
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 92
1,1-Dichloroethane 75-34-3 95
1,1-Dichloroethene 75-35-4 106
1,2,4-Trimethylbenzene 95-63-6 98
1,2-Dichloroethane 107-06-2 87
1,3,5-Trimethylbenzene 108-67-8 94
1,4-Dioxane 123-91-1 95
2-Butanone (Methyl Ethyl Ketone)78-93-3 96
2-Propanol 67-63-0 115
4-Ethyltoluene 622-96-8 98
4-Methyl-2-pentanone 108-10-1 93
Acetone 67-64-1 103
Benzene 71-43-2 96
Chloroethane 75-00-3 105
Chloroform 67-66-3 90
cis-1,2-Dichloroethene 156-59-2 99
Cyclohexane 110-82-7 98
Ethanol 64-17-5 115
Ethyl Benzene 100-41-4 97
Freon 11 75-69-4 89
Freon 113 76-13-1 101
Freon 12 75-71-8 97
Heptane 142-82-5 92
Hexane 110-54-3 96
Page 24 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/8/23 11:04 AM
1.00
msd91.i / 91050805
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08AA
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCSD
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 92
Methylene Chloride 75-09-2 98
o-Xylene 95-47-6 95
Propylbenzene 103-65-1 93
Tetrachloroethene 127-18-4 98
Tetrahydrofuran 109-99-9 98
Toluene 108-88-3 85
trans-1,2-Dichloroethene 156-60-5 100
Trichloroethene 79-01-6 93
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 96
4-Bromofluorobenzene 460-00-4 70-130 100
Toluene-d8 2037-26-5 70-130 98
Page 25 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/9/23 10:45 AM
1.00
msd91.i / 91050904
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08B
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCS
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 92
1,1-Dichloroethane 75-34-3 93
1,1-Dichloroethene 75-35-4 102
1,2,4-Trimethylbenzene 95-63-6 94
1,2-Dichloroethane 107-06-2 86
1,3,5-Trimethylbenzene 108-67-8 91
1,4-Dioxane 123-91-1 94
2-Butanone (Methyl Ethyl Ketone)78-93-3 93
2-Propanol 67-63-0 113
4-Ethyltoluene 622-96-8 95
4-Methyl-2-pentanone 108-10-1 89
Acetone 67-64-1 101
Benzene 71-43-2 91
Chloroethane 75-00-3 104
Chloroform 67-66-3 91
cis-1,2-Dichloroethene 156-59-2 96
Cyclohexane 110-82-7 96
Ethanol 64-17-5 109
Ethyl Benzene 100-41-4 95
Freon 11 75-69-4 88
Freon 113 76-13-1 98
Freon 12 75-71-8 97
Heptane 142-82-5 88
Hexane 110-54-3 93
Page 26 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/9/23 10:45 AM
1.00
msd91.i / 91050904
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08B
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCS
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 91
Methylene Chloride 75-09-2 97
o-Xylene 95-47-6 93
Propylbenzene 103-65-1 88
Tetrachloroethene 127-18-4 96
Tetrahydrofuran 109-99-9 96
Toluene 108-88-3 83
trans-1,2-Dichloroethene 156-60-5 98
Trichloroethene 79-01-6 94
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 96
4-Bromofluorobenzene 460-00-4 70-130 101
Toluene-d8 2037-26-5 70-130 98
Page 27 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/9/23 11:11 AM
1.00
msd91.i / 91050905
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08BB
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCSD
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 89
1,1-Dichloroethane 75-34-3 92
1,1-Dichloroethene 75-35-4 102
1,2,4-Trimethylbenzene 95-63-6 95
1,2-Dichloroethane 107-06-2 100
1,3,5-Trimethylbenzene 108-67-8 91
1,4-Dioxane 123-91-1 99
2-Butanone (Methyl Ethyl Ketone)78-93-3 95
2-Propanol 67-63-0 113
4-Ethyltoluene 622-96-8 97
4-Methyl-2-pentanone 108-10-1 94
Acetone 67-64-1 99
Benzene 71-43-2 98
Chloroethane 75-00-3 103
Chloroform 67-66-3 88
cis-1,2-Dichloroethene 156-59-2 95
Cyclohexane 110-82-7 94
Ethanol 64-17-5 117
Ethyl Benzene 100-41-4 95
Freon 11 75-69-4 87
Freon 113 76-13-1 96
Freon 12 75-71-8 95
Heptane 142-82-5 94
Hexane 110-54-3 93
Page 28 of 29
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
5/9/23 11:11 AM
1.00
msd91.i / 91050905
EPA METHOD TO-15 GC/MS FULL SCAN
2305014-08BB
NA - Not Applicable
NA - Not Applicable
NORTHROP GRUMMAN
LCSD
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 90
Methylene Chloride 75-09-2 96
o-Xylene 95-47-6 93
Propylbenzene 103-65-1 91
Tetrachloroethene 127-18-4 94
Tetrahydrofuran 109-99-9 94
Toluene 108-88-3 86
trans-1,2-Dichloroethene 156-60-5 98
Trichloroethene 79-01-6 94
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 94
4-Bromofluorobenzene 460-00-4 70-130 97
Toluene-d8 2037-26-5 70-130 102
Page 29 of 29
* % Recovery is calculated using unrounded analytical results.
Appendix E
11/20/2023
Mr. Andrew Riemer
Stantec Consulting Corporation
1165 Scheuring Rd
De Pere WI 54115
Project Name: Northrop Grumman - Salt Lake City
Project #: 193709721
Dear Mr. Andrew Riemer
The following report includes the data for the above referenced project for sample(s)
received on 11/13/2023 at Eurofins Air Toxics LLC.
The data and associated QC analyzed by TO-15 are compliant with the project
requirements or laboratory criteria with the exception of the deviations noted in the
attached case narrative.
Thank you for choosing Eurofins Air Toxics LLC. for your air analysis needs. Eurofins Air
Toxics Inc. is committed to providing accurate data of the highest quality. Please feel free
to contact the Project Manager: Jade White at 916-985-1000 if you have any questions
regarding the data in this report.
Regards,
Jade White
Project Manager
Workorder #: 2311268
Page 1 of 21
Mr. Andrew Riemer
Stantec Consulting Corporation
1165 Scheuring Rd
De Pere, WI 54115
WORK ORDER #: 2311268
CLIENT:BILL TO:
PHONE:
Accounts Payable
Stantec Consulting Services Inc.
PO Box 6610
Broomfield, CO 80021
(920) 592-8400
11/13/2023
DATE COMPLETED:11/20/2023
P.O. #
PROJECT #193709721 Northrop Grumman - Salt
Lake City
Work Order Summary
FAX:
DATE RECEIVED:CONTACT:Jade White
NAMEFRACTION #TEST VAC./PRES.
RECEIPT
PRESSURE
FINAL
01A IA-2 TO-15 9.2 "Hg 1.7 psi
02A IA-3 TO-15 7.6 "Hg 1.8 psi
03A IA-6 TO-15 10.6 "Hg 3.5 psi
04A OA-1 TO-15 13.7 "Hg 1.9 psi
05A DUP-1 TO-15 9.2 "Hg 1.6 psi
06A Lab Blank TO-15 NA NA
07A CCV TO-15 NA NA
08A LCS TO-15 NA NA
08AA LCSD TO-15 NA NA
CERTIFIED BY:
Technical Director
DATE: 11/20/23
Page 2 of 21
Certification numbers: AZ Licensure AZ0775, FL NELAP – E87680, LA NELAP – 02089, NH NELAP – 209222, NJ NELAP - CA016,
NY NELAP - 11291, TX NELAP – T104704434-22-18, UT NELAP – CA009332022-14, VA NELAP - 12240, WA ELAP - C935
Name of Accreditation Body: NELAP/ORELAP (Oregon Environmental Laboratory Accreditation Program) CA300005-017
Eurofins Environment Testing Northern California, LLC certifies that the test results contained in this report meet
all requirements of the 2016 TNI Standard.
This report shall not be reproduced, except in full, without the written approval of Eurofins Air Toxics, LLC.
180 BLUE RAVINE ROAD, SUITE B FOLSOM, CA - 95630
(916) 985-1000
LABORATORY NARRATIVE
EPA Method TO-15
Stantec Consulting Corporation
Workorder# 2311268
Five 6 Liter Summa Canister samples were received on November 13, 2023. The laboratory performed
analysis via EPA Method TO-15 using GC/MS in the full scan mode.
There were no receiving discrepancies.
Receiving Notes
As per client project requirements, the laboratory has reported estimated values for target compound hits
that are below the Reporting Limit but greater than the Method Detection Limit. Concentrations that are
below the level at which the canister was certified may be false positives.
Analytical Notes
Ten qualifiers may have been used on the data analysis sheets and indicates as follows:
B - Compound present in laboratory blank greater than reporting limit (background subtraction not
performed).
J - Estimated value.
E - Exceeds instrument calibration range.
S - Saturated peak.
Q - Exceeds quality control limits.
U - Compound analyzed for but not detected above the reporting limit, LOD, or MDL value. See
data page for project specific U-flag definition.
UJ- Non-detected compound associated with low bias in the CCV
N - The identification is based on presumptive evidence.
M - Reported value may be biased due to apparent matrix interferences.
CN - See Case Narrative.
File extensions may have been used on the data analysis sheets and indicates
as follows:
a-File was requantified
b-File was quantified by a second column and detector
r1-File was requantified for the purpose of reissue
Definition of Data Qualifying Flags
Page 3 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 02:16 PM
1.61
msdj.i / j111615
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-01A
11/10/23 05:05 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
IA-2
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.41.1 Not Detected4.0
1,1-Dichloroethane 75-34-3 3.20.71 Not Detected2.9
1,1-Dichloroethene 75-35-4 3.21.6 Not Detected2.9
1,2,4-Trimethylbenzene 95-63-6 4.01.1 Not Detected3.6
1,2-Dichloroethane 107-06-2 3.21.1 Not Detected2.9
1,3,5-Trimethylbenzene 108-67-8 4.01.0 Not Detected3.6
1,4-Dioxane 123-91-1 122.7 Not Detected8.7
2-Butanone (Methyl Ethyl Ketone)78-93-3 9.51.6 3.3 J7.1
2-Propanol 67-63-0 7.92.7 4605.9
4-Ethyltoluene 622-96-8 4.00.88 Not Detected3.6
4-Methyl-2-pentanone 108-10-1 3.31.3 Not Detected3.0
Acetone 67-64-1 195.3 23015
Benzene 71-43-2 2.60.61 0.73 J2.3
Chloroethane 75-00-3 8.52.9 Not Detected6.4
Chloroform 67-66-3 3.90.90 Not Detected3.5
cis-1,2-Dichloroethene 156-59-2 3.20.69 Not Detected2.9
Cyclohexane 110-82-7 2.81.0 Not Detected2.5
Ethanol 64-17-5 157.5 2012
Ethyl Benzene 100-41-4 3.50.83 Not Detected3.1
Freon 11 75-69-4 4.51.4 Not Detected4.1
Freon 113 76-13-1 6.21.3 Not Detected5.6
Freon 12 75-71-8 4.01.9 2.1 J3.6
Heptane 142-82-5 3.31.1 Not Detected3.0
Hexane 110-54-3 2.80.89 4.92.6
Page 4 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 02:16 PM
1.61
msdj.i / j111615
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-01A
11/10/23 05:05 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
IA-2
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 7.00.50 1.4 J3.1
Methylene Chloride 75-09-2 282.3 Not Detected8.4
o-Xylene 95-47-6 3.50.84 Not Detected3.1
Propylbenzene 103-65-1 4.00.88 Not Detected3.6
Tetrachloroethene 127-18-4 5.51.4 Not Detected4.9
Tetrahydrofuran 109-99-9 2.41.5 Not Detected2.1
Toluene 108-88-3 6.10.76 2.3 J2.7
trans-1,2-Dichloroethene 156-60-5 3.21.5 1302.9
Trichloroethene 79-01-6 4.31.3 Not Detected3.9
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 100
4-Bromofluorobenzene 460-00-4 70-130 101
Toluene-d8 2037-26-5 70-130 102
Page 5 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 02:42 PM
1.50
msdj.i / j111616
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-02A
11/10/23 05:14 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
IA-3
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.11.0 Not Detected3.7
1,1-Dichloroethane 75-34-3 3.00.66 Not Detected2.7
1,1-Dichloroethene 75-35-4 3.01.5 Not Detected2.7
1,2,4-Trimethylbenzene 95-63-6 3.71.0 Not Detected3.3
1,2-Dichloroethane 107-06-2 3.01.0 Not Detected2.7
1,3,5-Trimethylbenzene 108-67-8 3.70.99 Not Detected3.3
1,4-Dioxane 123-91-1 112.5 Not Detected8.1
2-Butanone (Methyl Ethyl Ketone)78-93-3 8.81.5 Not Detected6.6
2-Propanol 67-63-0 7.42.5 1000 E5.5
4-Ethyltoluene 622-96-8 3.70.82 Not Detected3.3
4-Methyl-2-pentanone 108-10-1 3.11.2 Not Detected2.8
Acetone 67-64-1 185.0 67014
Benzene 71-43-2 2.40.57 0.90 J2.2
Chloroethane 75-00-3 7.92.7 Not Detected5.9
Chloroform 67-66-3 3.70.84 Not Detected3.3
cis-1,2-Dichloroethene 156-59-2 3.00.65 Not Detected2.7
Cyclohexane 110-82-7 2.60.95 Not Detected2.3
Ethanol 64-17-5 147.0 2611
Ethyl Benzene 100-41-4 3.20.77 Not Detected2.9
Freon 11 75-69-4 4.21.4 1.4 J3.8
Freon 113 76-13-1 5.71.2 Not Detected5.2
Freon 12 75-71-8 3.71.8 1.9 J3.3
Heptane 142-82-5 3.11.0 Not Detected2.8
Hexane 110-54-3 2.60.83 Not Detected2.4
Page 6 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 02:42 PM
1.50
msdj.i / j111616
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-02A
11/10/23 05:14 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
IA-3
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 6.50.47 2.1 J2.9
Methylene Chloride 75-09-2 262.2 Not Detected7.8
o-Xylene 95-47-6 3.20.78 Not Detected2.9
Propylbenzene 103-65-1 3.70.82 Not Detected3.3
Tetrachloroethene 127-18-4 5.11.3 Not Detected4.6
Tetrahydrofuran 109-99-9 2.21.4 Not Detected2.0
Toluene 108-88-3 5.60.71 3.5 J2.5
trans-1,2-Dichloroethene 156-60-5 3.01.4 Not Detected2.7
Trichloroethene 79-01-6 4.01.2 Not Detected3.6
J = Estimated value.
E = Exceeds instrument calibration range.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 99
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 102
Page 7 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 03:08 PM
1.91
msdj.i / j111617
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-03A
11/10/23 05:19 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
IA-6
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 5.21.3 Not Detected4.7
1,1-Dichloroethane 75-34-3 3.90.84 Not Detected3.5
1,1-Dichloroethene 75-35-4 3.82.0 Not Detected3.4
1,2,4-Trimethylbenzene 95-63-6 4.71.3 Not Detected4.2
1,2-Dichloroethane 107-06-2 3.91.3 Not Detected3.5
1,3,5-Trimethylbenzene 108-67-8 4.71.2 Not Detected4.2
1,4-Dioxane 123-91-1 143.2 Not Detected10
2-Butanone (Methyl Ethyl Ketone)78-93-3 111.9 Not Detected8.4
2-Propanol 67-63-0 9.43.2 1900 E7.0
4-Ethyltoluene 622-96-8 4.71.0 Not Detected4.2
4-Methyl-2-pentanone 108-10-1 3.91.5 Not Detected3.5
Acetone 67-64-1 236.3 52018
Benzene 71-43-2 3.00.72 Not Detected2.7
Chloroethane 75-00-3 103.5 Not Detected7.6
Chloroform 67-66-3 4.71.1 Not Detected4.2
cis-1,2-Dichloroethene 156-59-2 3.80.82 Not Detected3.4
Cyclohexane 110-82-7 3.31.2 Not Detected3.0
Ethanol 64-17-5 188.9 2414
Ethyl Benzene 100-41-4 4.10.99 Not Detected3.7
Freon 11 75-69-4 5.41.7 Not Detected4.8
Freon 113 76-13-1 7.31.6 276.6
Freon 12 75-71-8 4.72.2 Not Detected4.2
Heptane 142-82-5 3.91.3 Not Detected3.5
Hexane 110-54-3 3.41.0 Not Detected3.0
Page 8 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 03:08 PM
1.91
msdj.i / j111617
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-03A
11/10/23 05:19 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
IA-6
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 8.30.59 1.9 J3.7
Methylene Chloride 75-09-2 332.8 Not Detected10
o-Xylene 95-47-6 4.10.99 Not Detected3.7
Propylbenzene 103-65-1 4.71.0 Not Detected4.2
Tetrachloroethene 127-18-4 6.51.7 Not Detected5.8
Tetrahydrofuran 109-99-9 2.81.8 Not Detected2.5
Toluene 108-88-3 7.20.90 3.3 J3.2
trans-1,2-Dichloroethene 156-60-5 3.81.7 853.4
Trichloroethene 79-01-6 5.11.5 Not Detected4.6
E = Exceeds instrument calibration range.
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 99
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 102
Page 9 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 03:34 PM
2.08
msdj.i / j111618
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-04A
11/10/23 02:45 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
OA-1
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 5.71.4 Not Detected5.1
1,1-Dichloroethane 75-34-3 4.20.92 Not Detected3.8
1,1-Dichloroethene 75-35-4 4.12.1 Not Detected3.7
1,2,4-Trimethylbenzene 95-63-6 5.11.4 Not Detected4.6
1,2-Dichloroethane 107-06-2 4.21.4 Not Detected3.8
1,3,5-Trimethylbenzene 108-67-8 5.11.4 Not Detected4.6
1,4-Dioxane 123-91-1 153.4 Not Detected11
2-Butanone (Methyl Ethyl Ketone)78-93-3 122.1 Not Detected9.2
2-Propanol 67-63-0 103.5 1407.7
4-Ethyltoluene 622-96-8 5.11.1 Not Detected4.6
4-Methyl-2-pentanone 108-10-1 4.31.6 Not Detected3.8
Acetone 67-64-1 256.9 4420
Benzene 71-43-2 3.30.78 Not Detected3.0
Chloroethane 75-00-3 113.8 Not Detected8.2
Chloroform 67-66-3 5.11.2 Not Detected4.6
cis-1,2-Dichloroethene 156-59-2 4.10.90 Not Detected3.7
Cyclohexane 110-82-7 3.61.3 Not Detected3.2
Ethanol 64-17-5 209.7 13 J16
Ethyl Benzene 100-41-4 4.51.1 Not Detected4.1
Freon 11 75-69-4 5.81.9 Not Detected5.2
Freon 113 76-13-1 8.01.7 Not Detected7.2
Freon 12 75-71-8 5.12.4 Not Detected4.6
Heptane 142-82-5 4.31.4 Not Detected3.8
Hexane 110-54-3 3.71.1 Not Detected3.3
Page 10 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 03:34 PM
2.08
msdj.i / j111618
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-04A
11/10/23 02:45 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
OA-1
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 9.00.65 0.97 J4.1
Methylene Chloride 75-09-2 363.0 Not Detected11
o-Xylene 95-47-6 4.51.1 Not Detected4.1
Propylbenzene 103-65-1 5.11.1 Not Detected4.6
Tetrachloroethene 127-18-4 7.01.8 Not Detected6.3
Tetrahydrofuran 109-99-9 3.12.0 Not Detected2.8
Toluene 108-88-3 7.80.98 1.8 J3.5
trans-1,2-Dichloroethene 156-60-5 4.11.9 4.53.7
Trichloroethene 79-01-6 5.61.7 Not Detected5.0
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 101
4-Bromofluorobenzene 460-00-4 70-130 101
Toluene-d8 2037-26-5 70-130 102
Page 11 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 03:59 PM
1.60
msdj.i / j111619
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-05A
11/10/23 05:05 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
DUP-1
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 4.41.1 Not Detected3.9
1,1-Dichloroethane 75-34-3 3.20.71 Not Detected2.9
1,1-Dichloroethene 75-35-4 3.21.6 Not Detected2.8
1,2,4-Trimethylbenzene 95-63-6 3.91.1 Not Detected3.5
1,2-Dichloroethane 107-06-2 3.21.1 Not Detected2.9
1,3,5-Trimethylbenzene 108-67-8 3.91.0 Not Detected3.5
1,4-Dioxane 123-91-1 122.6 Not Detected8.6
2-Butanone (Methyl Ethyl Ketone)78-93-3 9.41.6 Not Detected7.1
2-Propanol 67-63-0 7.92.7 4405.9
4-Ethyltoluene 622-96-8 3.90.87 Not Detected3.5
4-Methyl-2-pentanone 108-10-1 3.31.3 Not Detected2.9
Acetone 67-64-1 195.3 22015
Benzene 71-43-2 2.60.60 0.72 J2.3
Chloroethane 75-00-3 8.42.9 Not Detected6.3
Chloroform 67-66-3 3.90.89 Not Detected3.5
cis-1,2-Dichloroethene 156-59-2 3.20.69 Not Detected2.8
Cyclohexane 110-82-7 2.81.0 Not Detected2.5
Ethanol 64-17-5 157.5 2012
Ethyl Benzene 100-41-4 3.50.83 Not Detected3.1
Freon 11 75-69-4 4.51.4 Not Detected4.0
Freon 113 76-13-1 6.11.3 Not Detected5.5
Freon 12 75-71-8 4.01.9 Not Detected3.6
Heptane 142-82-5 3.31.1 Not Detected3.0
Hexane 110-54-3 2.80.88 5.22.5
Page 12 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 03:59 PM
1.60
msdj.i / j111619
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-05A
11/10/23 05:05 PM
6 Liter Summa Canister
Northrop Grumman - Salt Lake City
DUP-1
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 6.90.50 1.3 J3.1
Methylene Chloride 75-09-2 282.3 Not Detected8.3
o-Xylene 95-47-6 3.50.83 Not Detected3.1
Propylbenzene 103-65-1 3.90.88 Not Detected3.5
Tetrachloroethene 127-18-4 5.41.4 Not Detected4.9
Tetrahydrofuran 109-99-9 2.41.5 Not Detected2.1
Toluene 108-88-3 6.00.75 2.4 J2.7
trans-1,2-Dichloroethene 156-60-5 3.21.4 1402.8
Trichloroethene 79-01-6 4.31.3 Not Detected3.9
J = Estimated value.
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 99
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 102
Page 13 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 10:07 AM
1.00
msdj.i / j111609c
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-06A
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
Lab Blank
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
1,1,1-Trichloroethane 71-55-6 2.70.66 Not Detected2.4
1,1-Dichloroethane 75-34-3 2.00.44 Not Detected1.8
1,1-Dichloroethene 75-35-4 2.01.0 Not Detected1.8
1,2,4-Trimethylbenzene 95-63-6 2.40.66 Not Detected2.2
1,2-Dichloroethane 107-06-2 2.00.70 Not Detected1.8
1,3,5-Trimethylbenzene 108-67-8 2.40.66 Not Detected2.2
1,4-Dioxane 123-91-1 7.21.6 Not Detected5.4
2-Butanone (Methyl Ethyl Ketone)78-93-3 5.90.99 Not Detected4.4
2-Propanol 67-63-0 4.91.7 Not Detected3.7
4-Ethyltoluene 622-96-8 2.40.54 Not Detected2.2
4-Methyl-2-pentanone 108-10-1 2.00.79 Not Detected1.8
Acetone 67-64-1 123.3 Not Detected9.5
Benzene 71-43-2 1.60.38 Not Detected1.4
Chloroethane 75-00-3 5.31.8 Not Detected4.0
Chloroform 67-66-3 2.40.56 Not Detected2.2
cis-1,2-Dichloroethene 156-59-2 2.00.43 Not Detected1.8
Cyclohexane 110-82-7 1.70.63 Not Detected1.5
Ethanol 64-17-5 9.44.7 Not Detected7.5
Ethyl Benzene 100-41-4 2.20.52 Not Detected2.0
Freon 11 75-69-4 2.80.91 Not Detected2.5
Freon 113 76-13-1 3.80.83 Not Detected3.4
Freon 12 75-71-8 2.51.2 Not Detected2.2
Heptane 142-82-5 2.00.70 Not Detected1.8
Hexane 110-54-3 1.80.55 Not Detected1.6
Page 14 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 10:07 AM
1.00
msdj.i / j111609c
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-06A
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
Lab Blank
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
(ug/m3)CAS#
LOD
Compound (ug/m3)
MDL Rpt. Limit
(ug/m3)
Amount
(ug/m3)
m,p-Xylene 108-38-3 4.30.31 Not Detected2.0
Methylene Chloride 75-09-2 171.4 Not Detected5.2
o-Xylene 95-47-6 2.20.52 Not Detected2.0
Propylbenzene 103-65-1 2.40.55 Not Detected2.2
Tetrachloroethene 127-18-4 3.40.87 Not Detected3.0
Tetrahydrofuran 109-99-9 1.50.94 Not Detected1.3
Toluene 108-88-3 3.80.47 Not Detected1.7
trans-1,2-Dichloroethene 156-60-5 2.00.91 Not Detected1.8
Trichloroethene 79-01-6 2.70.80 Not Detected2.4
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 97
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 102
Page 15 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 09:21 AM
1.00
msdj.i / j111608
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-07A
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
CCV
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 100
1,1-Dichloroethane 75-34-3 89
1,1-Dichloroethene 75-35-4 82
1,2,4-Trimethylbenzene 95-63-6 87
1,2-Dichloroethane 107-06-2 102
1,3,5-Trimethylbenzene 108-67-8 89
1,4-Dioxane 123-91-1 98
2-Butanone (Methyl Ethyl Ketone)78-93-3 85
2-Propanol 67-63-0 76
4-Ethyltoluene 622-96-8 95
4-Methyl-2-pentanone 108-10-1 70
Acetone 67-64-1 85
Benzene 71-43-2 92
Chloroethane 75-00-3 93
Chloroform 67-66-3 91
cis-1,2-Dichloroethene 156-59-2 87
Cyclohexane 110-82-7 83
Ethanol 64-17-5 70
Ethyl Benzene 100-41-4 86
Freon 11 75-69-4 103
Freon 113 76-13-1 104
Freon 12 75-71-8 95
Heptane 142-82-5 108
Hexane 110-54-3 79
Page 16 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 09:21 AM
1.00
msdj.i / j111608
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-07A
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
CCV
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 88
Methylene Chloride 75-09-2 85
o-Xylene 95-47-6 82
Propylbenzene 103-65-1 87
Tetrachloroethene 127-18-4 91
Tetrahydrofuran 109-99-9 78
Toluene 108-88-3 91
trans-1,2-Dichloroethene 156-60-5 88
Trichloroethene 79-01-6 98
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 96
4-Bromofluorobenzene 460-00-4 70-130 104
Toluene-d8 2037-26-5 70-130 103
Page 17 of 21
Dilution Factor:
Instrument/Filename:
11/16/23 05:15 AM
1.00
msdj.i / j111604
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-08A
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
LCS
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 94
1,1-Dichloroethane 75-34-3 87
1,1-Dichloroethene 75-35-4 79
1,2,4-Trimethylbenzene 95-63-6 88
1,2-Dichloroethane 107-06-2 108
1,3,5-Trimethylbenzene 108-67-8 88
1,4-Dioxane 123-91-1 116
2-Butanone (Methyl Ethyl Ketone)78-93-3 86
2-Propanol 67-63-0 98
4-Ethyltoluene 622-96-8 94
4-Methyl-2-pentanone 108-10-1 78
Acetone 67-64-1 87
Benzene 71-43-2 89
Chloroethane 75-00-3 92
Chloroform 67-66-3 85
cis-1,2-Dichloroethene 156-59-2 84
Cyclohexane 110-82-7 76
Ethanol 64-17-5 116
Ethyl Benzene 100-41-4 88
Freon 11 75-69-4 101
Freon 113 76-13-1 99
Freon 12 75-71-8 92
Heptane 142-82-5 97
Hexane 110-54-3 76
Page 18 of 21
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
11/16/23 05:15 AM
1.00
msdj.i / j111604
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-08A
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
LCS
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 88
Methylene Chloride 75-09-2 82
o-Xylene 95-47-6 84
Propylbenzene 103-65-1 87
Tetrachloroethene 127-18-4 97
Tetrahydrofuran 109-99-9 78
Toluene 108-88-3 88
trans-1,2-Dichloroethene 156-60-5 88
Trichloroethene 79-01-6 93
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 95
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 102
Page 19 of 21
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
11/16/23 05:39 AM
1.00
msdj.i / j111605
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-08AA
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
LCSD
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
1,1,1-Trichloroethane 71-55-6 94
1,1-Dichloroethane 75-34-3 88
1,1-Dichloroethene 75-35-4 80
1,2,4-Trimethylbenzene 95-63-6 91
1,2-Dichloroethane 107-06-2 109
1,3,5-Trimethylbenzene 108-67-8 92
1,4-Dioxane 123-91-1 95
2-Butanone (Methyl Ethyl Ketone)78-93-3 85
2-Propanol 67-63-0 80
4-Ethyltoluene 622-96-8 96
4-Methyl-2-pentanone 108-10-1 78
Acetone 67-64-1 86
Benzene 71-43-2 90
Chloroethane 75-00-3 94
Chloroform 67-66-3 86
cis-1,2-Dichloroethene 156-59-2 85
Cyclohexane 110-82-7 77
Ethanol 64-17-5 91
Ethyl Benzene 100-41-4 90
Freon 11 75-69-4 101
Freon 113 76-13-1 101
Freon 12 75-71-8 92
Heptane 142-82-5 96
Hexane 110-54-3 78
Page 20 of 21
* % Recovery is calculated using unrounded analytical results.
Dilution Factor:
Instrument/Filename:
11/16/23 05:39 AM
1.00
msdj.i / j111605
EPA METHOD TO-15 GC/MS FULL SCAN
2311268-08AA
NA - Not Applicable
NA - Not Applicable
Northrop Grumman - Salt Lake City
LCSD
Date/Time Analyzed:
Client ID:
Lab ID:
Date/Time Collected:
Media:
CAS#Compound %Recovery
m,p-Xylene 108-38-3 90
Methylene Chloride 75-09-2 83
o-Xylene 95-47-6 87
Propylbenzene 103-65-1 89
Tetrachloroethene 127-18-4 99
Tetrahydrofuran 109-99-9 77
Toluene 108-88-3 89
trans-1,2-Dichloroethene 156-60-5 88
Trichloroethene 79-01-6 94
D: Analyte not within the DoD scope of accreditation.
CAS#Surrogates Limits %Recovery
1,2-Dichloroethane-d4 17060-07-0 70-130 94
4-Bromofluorobenzene 460-00-4 70-130 102
Toluene-d8 2037-26-5 70-130 101
Page 21 of 21
* % Recovery is calculated using unrounded analytical results.