25009_East Side Truck Svc_Assessment WP w approval_20211228

Graham, Stephanie J
From: Samaha, Holly
Sent: Wednesday, December 29, 2021 6:11 PM
To: Cheryl Moody; Nick Patel
Cc: Daniel Schiwinger; Graham, Stephanie J
Subject: RE: [External] East Side Truck Service - Work Plan Comments
Hi Cheryl,
The Sampling Work Plan Revision 4, East Side Trucking Service (ASE, 12/28/2021) is approved.
Stephanie Graham will be taking over as Brownfields Project Manager from this point moving forward, but I will still get
back to you regarding your earlier question on using Entech sampling trains for future events when I have discussed it
with the group.
Thanks and Happy New Year,
Holly Samaha-Smith, PE
Brownfields Project Manager
Division of Waste Management — Brownfields Program
NC Department of Environmental Quality
Office: 919-707-8238
Mobile: [phone]
Email: [e-mail]
1646 Mail Service Center
217 W. Jones Street
Raleigh, NC 27699-1646
D- E-
Email correspondence to and from this address is subject to the North Carolina Public Records
Law and may be disclosed to third parties unless the content is exempt by statue or other regulation.
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PPF
Environmental Services, Ltd.
SAMPLING WORK PLAN REVISION 4
EAST SIDE TRUCKING SERVICE
520 JUDSON CHURCH ROAD
FAYETTEVILLE, NORTH CAROLINA
Brownfield Project Number: 25009-21-026
Submitted By
Atlantic Shores Environmental Services, Ltd.
License No. C-4767
December 28, 2021
Cheryl Moody, PE
Principal Engineer
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Developer: Naman Judson LLC
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Consultant: Atlantic Shores Environmental Services Ltd.
cmoody(& atlantic shoresenv. com
910-371-5980

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
TABLE OF CONTENT
December 28, 2021
1.0 INTRODUCTION......................................................................................................................................1
1.1
ASSESSMENT HISTORY.....................................................................................................................................
1
1.2
REDEVELOPMENT PLANS..................................................................................................................................
4
2.0
SCOPE OF WORK.....................................................................................................................................4
2.1
SOIL GAS SAMPLES.........................................................................................................................................
4
2.2
SOIL SAMPLES ................................................................................................................................................4
2.3
GROUNDWATER SAMPLES................................................................................................................................
5
2.4
POTENTIOMETRIC SURVEY................................................................................................................................
5
2.5
POTABLE WELL ABANDONMENT........................................................................................................................5
2.6
BROWNFIELD RECEPTORS SURVEY......................................................................................................................
5
3.0
SAMPLING METHODOLOGY....................................................................................................................5
3.1
SOIL GAS SAMPLES.........................................................................................................................................
5
3.2
SOIL SAMPLING..............................................................................................................................................
7
3.3
UTILITY LINE SOILSAMPLING.............................................................................................................................
8
3.4
GROUNDWATER WELLS...................................................................................................................................
S
4.0
LABORATORY ANALYSES.........................................................................................................................9
4.1
SOIL GAS SAMPLES.........................................................................................................................................
9
4.2
SOIL AND GROUNDWATER SAMPLES...................................................................................................................9
5.0 QA/QC..................................................................................................................................................10
6.0 INVESTIGATION DERIVED WASTE (IDW) MANAGEMENT.......................................................................10
7.0 REPORTING...........................................................................................................................................10
Tables
1 — Property Summary
2 — Sampling Summary
3 — TO-15 Analyte list
4 — Historical groundwater data
5 — Historical soil data
Figures
1 — Site Location Map
2 — Proposed Redevelopment
3 — Proposed Sample Location Map
Appendix
A - Laboratory Certifications
B — Entech Helium Analyzer Quick Guide

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
1.0 INTRODUCTION
December 28, 2021
Atlantic Shores Environmental Services, Ltd. (ASE) is pleased to provide this work plan summarizing sampling
activities for the Eastside Trucking Service Brownfield site. The site encompasses approximately 3.39 acres
and two adjoining Cumberland County parcels addressed as 520 Judson Church Road, Fayetteville, North
Carolina (Refer to Figure 1). The subject site is being redeveloped into Springhill Suites, a 74,733 square -foot
hotel.
• Cumberland County PIN: 0455-58-0008 approximately 2.90 acres
• Cumberland County PIN: 0455-48-7292 approximately 0.49 acres
The assessment proposed in this work plan is not intended for other DEQ programs. The Prospective
Developer (PD) submitted a Brownfield application for this property on January 12, 2021. The letter of
eligibility was received on April 16, 2021. We are currently awaiting assignment of a project manager for
this project. The PD initially intended to pursue the standard tract but has changed to the Redevelop Now
tract on October 6, 2021. Additional DEQ departments/programs are not currently involved with the site.
The PD desires to build a hotel and associated parking areas on the site.
• Demolition - There are currently no structures on the site with the exception of the concrete slab
of the former garage structure. This slab will be removed during the site work portion of the project.
• Foundation type for the new construction — The proposed foundation for the development will
be shallow foundations consisting of continuous and spread footings. Bottom of footing elevation
is 3'0" to the bottom of the footing excavation (worst case).
• Re -use of existing structures - There are currently no structures on the site.
• Presence of elevators and stairwells — The new construction will have one (1) elevator bank and
two (2) stairwells. Elevator pit is 6'0" to the bottom of the excavation, stairwells are only 3'0" to
the bottom of the excavation on 1 stair and 2'4" to the bottom of the excavation for the other.
• How the new building configuration/parking areas relate to the location of contamination at
the Brownfields Property — The proposed structure was initially designed to be located along the
southwestern side of the property. However, due to the identification of the chlorinated solvent
plume in this area, the orientation of the building has been changed and the proposed building has
been relocated to the northwest side of the parcel. This location and orientation is believed to be
upgradient of the solvent plume. Refer to Figure 2 and Table 1.
• The proposed use is under evaluation by the Brownfields Program at the time of this submittal.
1.1 Assessment History
An approximate 10,000 square -foot steel -framed, corrugated metal building is situated on Parcel 0455-58-
0008. The building is currently vacant but was historically operated as a truck repair facility called East
Side Truck Service. The site building is equipped with 5 service bays, personnel office, break room, parts
storage room and bathroom. Parcel 0455-48-7292 is undeveloped land that boarders Judson Church Road
and provides access to parcel 0455-58-0008.
Assessment of the site to date has included:

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
Environmental Reports
Report
Prepared by
Date
Phase I Environmental Site
J.N. Pease Environmental
January 20, 2020
Assessment
Group, LLC
Phase II Environmental Site
March 4, 2020
WithersRavenel
Assessment
Phase II Environmental Site
Assessment, Monitoring Well
WithersRavenel September 23, 2020
Installation Additional
Environmental Assessment
Phase II Environmental Site
Assessment, Monitoring Well
WithersRavenel
October 29, 2020
Installation
Phase II Environmental Site
Atlantic Shores Environmental
January 12, 2021
Assessment
Services, Ltd.
These assessments occurred prior to receiving eligibility into the Brownfield Program.
Assessment of the site began in January 2020. A Phase I Environmental Site Assessment (ESA) conducted
by J.N. Pease Environmental Group, LLC revealed evidence of a recognized environmental condition
(REC) originating from current facility operations/observations. Petroleum -stained surface soils were
observed adjacent to a waste oil AST located behind the central portion of the site building. The Phase I
ESA also located one underground septic system behind the northeast corner of the site building.
A Phase II Environmental Site Assessment was conducted in March 2020 to investigate the RECs identified
in the previous Phase I ESA. WithersRavenel was contracted to conduct the Phase II ESA, during the
investigation WithersRavenel advanced five (5) soil boring across the site SB-1, SB-2, SB-3, SB-4 and SB-
5. Borings SB-1 and SB-3 were converted into temporary monitoring wells TW-1 and TW-2 respectively.
The investigation was initiated to evaluate soil and groundwater conditions relative to waste stored in an
aboveground storage tank (AST).
The Phase II ESA revealed the following data:
Soil Data
Data for the analysis of the soil samples did not indicate the presence of TPH-GRO above respective
NCDEQ TPH-GRO action levels.
Data for the analysis of the soil samples indicated the presence of TPH-GRO above respective
NCDEQ TPH-DRO action levels in SB-3 and SB-4.
o TPH-DRO was reported at a concentration of 502.4 mg/kg in SB-3, which is above the
NCDEQ action level of 100 mg/kg for TPH-DRO.
o TPH-DRO was reported at a concentration of 526.9 mg/kg in SB-4, which is above the
NCDEQ action level of 100 mg/kg for TPH-DRO.
Data for the analysis of the soil samples indicated the presence of one targeted VOC above
applicable NCDEQ soil standards.
o Tetrachloroethene (PCE) was reported at a concentration of 2.85 mg/kg in SB-3 (2.5'),
which is above its residential MSCC of 1.10 mg/kg.
K

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
Data for the analysis of the soil samples did not indicate the presence of SVOCs above respective
NCDEQ soil standards.
Data for the analysis of the soil samples indicated the presence of one targeted EPH/VPH range
above applicable NCDEQ soil standards.
o C9-C22 Aromatics was reported at a concentration of 443.1 mg/kg in SB-3 (2.5'), which
is above its soil -to -water MSCC of 31 mg/kg.
Data for the analysis of the soil samples indicated the presence of one targeted metal above
applicable NCDEQ soil standards.
o Chromium was reported at a concentration of 7.04 mg/kg in SB-3 (2.5'), which is above
its soil -to -water MSCC of 5.4 mg/kg.
Groundwater Data
• Data for the analysis of the groundwater samples indicated the presence of two targeted VOCs
above applicable NCDEQ groundwater standards.
o Methylene Chloride was reported at a concentration of 176 µg/L in TW-2, which is above
its NCAC 2L standard of 5 µg/L.
o Tetrachloroethene (PCE) was reported at a concentration of 21.7 µg/L in TW-2, which is
above its NCAC 2L standard of 0.7 µg/L.
• Data for the analysis of the groundwater samples did not identify targeted SVOCs or EPH/VPH
compounds with applicable NCDEQ groundwater standards.
• Data for the analysis of the groundwater samples indicated the presence of one targeted metal
compound above applicable NCDEQ groundwater standards.
o Chromium was reported at a concentration of 14.2 µg/L in TW-I, which is above its NCAC
2L standard of 10 µg/L.
This assessment identified the presence of soil and groundwater contamination above applicable regulatory
standards in the vicinity of the waste oil AST. WithersRavenel recommended that limited soil remediation
be conducted in this area.
The data suggested the presence of an area of contaminated soils associated with overfills of the AST and
the presence of metals and petroleum hydrocarbons in the soil and solvents in groundwater. Between
February 2020 and June of 2020, the AST was pumped of its contents and removed from the site by the
owner to facilitate soil excavation and removal.
On July 2, 2020, approximately 18.5 tons of impacted soil was excavated from the area of release. The
excavation was approximately 15 feet by 6 feet and 4 feet deep. Groundwater was not encountered during
the excavation. Following excavation, backfill in the form of crushed stone and sand was placed as backfill.
On July 9, 2020, WithersRavenel installed a permanent monitoring well (MW-1) to investigate groundwater
impacts from the former onsite waste oil AST. The groundwater collected from MW-1 was found to have
2.90 ug/L of tetrachloroethylene, approximately four times the NC 2L regulatory limit of 0.7 ug/L. The
results recommended the installation of a minimum of four additional monitoring wells.
On September 3, 2020 four additional monitoring wells were installed, MW-2, MW-3, MW-4 and MW-5.
Data for the analysis of the groundwater sample collected from MW-2, MW-3, and MW-4 did not indicate
the presence of targeted VOCs above laboratory detection limits. Data from the analysis of the samples
collected from MW-1 and MW-5 did indicate the presence of tetrachloroethene at concentrations of 4.58
3

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
and 13.6 ug/L above the North Carolina 2L Regulatory Limits of 0.7 ug/L by a factor of five to fifteen.
Groundwater flow direction calculated by WithersRavenel was to the north northeast.
One additional monitoring well (MW-6) was installed inside of the building, downgradient from MW-1
and MW-5 in October 2020. All six wells were sampled. Data for the analysis of the groundwater samples
collected from MW-3 and MW-4 did not indicate the presence of targeted VOCs above laboratory detection
limits. Data from the analysis of the samples collected from MW-1, MW-2, MW-5, and MW-6 did indicate
the presence of tetrachloroethene at concentrations of 5.3, 0.23, 19.0, and 4.3 ug/L, respectively. MW-2
was below regulatory action levels. MW-2, MW-5 and MW-6 were above the North Carolina 2L Regulatory
Limits of 0.7 ug/L by a factor of seven to six to twenty-seven. Groundwater flow direction calculated by
WithersRavenel during this event differed from the September event. Groundwater was calculated to flow
in a southwesterly direction.
In January 2021, a Phase II Environmental Site Assessment was conducted by Atlantic Shores
Environmental Services to advance two additional temporary monitoring wells (TMW-1 and TMW-2) on
site to further identify impacts at the site between the current building and the proposed building. With the
exception of acetone and tetrachloroethene, target analytes were not identified in the groundwater samples.
Tetrachloroethene was detected in the groundwater in TMW-2 at a concentration that exceeds the NC DEQ
2L Standards. Acetone was identified in the groundwater in TMW-1 at concentrations below NC DEQ 2L
Standards. This data, coupled with topography supports the southwestern groundwater flow direction most
recently identified by WitherRavenel.
Refer to Figure 3 for the historical sampling points and Tables 4 and 5 for a summary of historical data.
1.2 Redevelopment Plans
The site is being redeveloped into Springhill Suites Hotel. The hotel will encompass 74,733 square -feet and
stand approximately 65 feet tall. The hotel will consist of 119 rooms and 123 parking spaces. A storm water
detention pond will be constructed to manage storm water from the site.
2.0 SCOPE OF WORK
Table 2 lists a summary of the proposed samples and Figure 3 illustrates the proposed sample locations.
2.1 Soil Gas Samples
Five (5) soil gas samples will be collected from inside the future building footprint. The samples will be
analyzed for the presence of volatile organics by Method TO-15. In addition to the 5 samples, one duplicate
sample will be collected.
2.2 Soil Samples
Soil samples will be collected along proposed utility lines at the approximate depth of the excavations using
hand augers. ASE estimated that 4 samples will be collected. One duplicate sample will also be collected
per DEQ requirements. The samples will be analyzed for volatile (VOC) and semi volatile compounds
(SVOC) by EPA Methods 8260 and 8270 respectively. The samples will also be analyzed for the presence
4

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
of RCRA 8 metals (Chromium VI). Hexavalent chromium will be analyzed by EPA Method 7199. The
locations of these samples are illustrated on Figure 3.
Three soil borings will be advanced on the site using a Geoprobe. These borings will be converted into
monitoring wells. Permanent monitoring wells will be constructed in the borings. One shallow soil sample
will be collected from each soil boring. The samples will be analyzed for volatile (VOC) and semi volatile
compounds (SVOC) by EPA Methods 8260 and 8270 respectively. The samples will also be analyzed for
the presence of RCRA 8 metals (Chromium VI). Hexavalent chromium will be analyzed by EPA Method
7199.
2.3 Groundwater Samples
Groundwater samples will be collected from the three newly installed wells. The samples will be analyzed
for volatile (VOC) and semi volatile compounds (SVOC) by EPA Methods 8260 and 8270 respectively.
The samples will also be analyzed for the presence of RCRA 8 metals (Chromium VI). Hexavalent
chromium will be analyzed by EPA Method 7199. One trip blank for 8260 analysis will be used, per cooler.
2.4 Potentiometric Survey
A potentiometric water table survey will be conducted including the three newly installed wells and the
existing wells (if they remain).
2.5 Potable Well Abandonment
One on -site potable well is located on the northeastern side of the existing concrete slab. The depth of the
well is not currently known. The location of the well has been included on Figure 3. The well has not been
tested. The on -site potable well will be abandoned in accordance with North Carolina Well Construction
Standards.
2.6 Brownfield Receptors Survey
A Brownflelds Property Receptor Survey will be completed as part of this scope of work.
3.0 SAMPLING METHODOLOGY
3.1 Soil Gas Samples
3.1.1 Port Installation
The vapor point borehole will be created using a 2.25-inch width and 4 ft length Geoprobe macro -core soil
sampling tube. The sample tube can be advanced to the desired depth then removed, therefore, leaving a
void of approximately 2.25 inches in diameter at the desired depth. The boreholes will be advanced to five
feet for exterior areas. The clean vapor point is connected to a length of dedicated 0.25-inch Teflon tubing
and inserted into the borehole and would rest at the termination depth. The bottom of the borehole would
then be filled with 6 inches of #2 mesh silica sand. Above the filter pack, the annulus will be sealed with a
minimum of two feet of granular sodium bentonite consisting of 6 inches of dry granular bentonite to
5

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
prevent the infiltration of hydrated bentonite followed by one foot of hydrated bentonite. Hydrated granular
bentonite will be placed up to the ground surface to complete the seal. Six inches of dedicated Teflon
tubing will extend from the ground surface to serve as a sampling port for the summa canister or similar
sampling device. The ports will be allowed to equilibrate for at least 48 hours before sampling. The type of
soil encountered in the borings will be recorded in boring logs.
3.1.2 Helium Tracer Test
Dedicated tubing will be used for each sampling point. Dedicated Entech sampling trains will be used for
all sampling points. ASE will utilize Entech prepared sampling trains, direct from the manufacture to
prevent cross contamination of the sampling points. The trains will be certified by the lab as "clean". ASE
will provide documentation of this in the sampling report.
Per DEQ DWM VI Guidance, Summa canisters that have lost greater than 10% of the initial recorded lab
vacuum when received in the field will not be used for sampling. If canisters are received in the field with
less than 27" Hg, initial lab pressure measurements will be documented to confirm less than a 10% volume
loss or a replacement summa canister will be obtained. Suma canisters will be batched certified by the
laboratory.
A shut in test will be conducted with the canister and regulator prior to the leak test. The shut in test will
be conducted by observing the pressure gauge prior to sampling, after the Summa canister has been attached
to the train (regulator). The shut in test is deemed successful if the pressure gauge remains the same after
30 seconds.
If the gauge value matches the pressure measured in the lab at the time of preparation listed on the chain of
custody, this signifies a leak free canister. If the canister shows more than a one (1) inch of Hg change in
pressure, the canister will not be used. Leak testing will be performed on soil gas probes and fittings of the
sampling train before collecting a soil gas sample using helium. An Entech Instruments (or equivalent)
helium detector will be used to verify the presence and concentration of tracer gas in accordance with the
attached Entech Helium Analyzer Quick Guide included as Appendix B.
The Entech shroud will be placed over the sampling port. A foam ring will be used to bridge the gap between
the ground and the shroud. The I AL canister(s) will be placed in the shroud using a micro QT fitting. Both
3-way valves (purge and sample) will be set to the off position The micro-QT fitting from the sampling
train will be connected to the sampling port QT fitting. The canister(s) will be attached to the female QT
fittings within the shroud. The shroud will be closed and locked. The helium source will be attached to the
top of the shroud using '/4 inch tubing. The helium detector will be turned on to ensure it is reading 20.9%
oxygen. The helium detector will be connected to the shroud using a 1/16 inch plastic line and metal elbow.
The elbow is then inserted into the left port of the detector. The shroud will be filled with helium.
The chameleon sampling train and sample point outlet will be within an Entech shroud. The shroud
atmosphere will be enriched with at least 10% helium. The helium concertation will be maintained at or
above 10% throughout the duration of the tracer test and sampling. The purging device (50 cc syringe) will
be situated outside of the shroud connected to the helium detector and the sampling train with Teflon tubing.
The helium control valve will be switched to the shroud position. A minimum of 50 ccs will be purged from
the right port of the helium detector. This will pull air from within the shroud to the Helium detector to
ensure the correct percentage of helium in the shroud. The control valve serves as a backflow preventer.
G

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
For the soil gas samples, one purge volume will include the volume of the boring and the sampling train.
Based on a five-foot boring, one purge volume is calculated at approximately 0.1091 ft3 or 3,100 cc. Three
volumes will be purged. A low purge rate with a maximum of 200 ml/min will be used.
Both the helium control valve and sampling control valve will be turned to the purge position. A minimum
of 3,100 ccs will be evacuated from the sample point using the syringe to purge the system. The leak test is
considered successful if the helium concentration measured in the soil gas purged from the sampling point
is less than 10% of the concentration measured in the shroud. The shroud helium concentration and the
helium concentration in the purged soil vapor will be documented. Both valves will be turned to the off
position. The sample will be collected by turning the sample valve to the sample position.
The sampling will be following the Division of Waste Management Vapor Intrusion Guidance (March
2018). A photograph of the shroud and sampling set-up at each sample location will be taken. The sample
container used for the collection of soil gas samples are laboratory supplied stainless steel 1.4-Liter summa
canisters. The sample flow rate is set by a regulator and will be a maximum of 200 cc (mL) per minute. The
canister vacuum will be recorded prior to sampling. The sampling valve will be closed when the vacuum is
approximately 6 inches of Hg and that the sampling canister final vacuum will not be allowed to reach 5
inches Hg. The vacuum reading will be recorded from the sampling train regulator and will be recorded on
the chain of custody along with the starting and completion temperatures and duration of sampling. Before
attaching the sample container, the vapor probe will be purged as described above. The soil gas samples
will be submitted to EMSL Analytical in Pineville North Carolina under the chain of custody protocol and
will be analyzed using USEPA Method TO-15. After sampling, the sampling ports will be abandoned by
removing the tubing and using bentonite to seal any angular spaces in the borehole.
One duplicate sample will be collected using a t-connection. However, due to the cumbersome nature of
this fitting in the Entech shroud, if the sampling train cannot be sealed, the duplicate will be collected
immediately after the original sample using the same procedure above.
Mercury has not been identified in the site soils or groundwater. A mercury vapor concern is not present on
the site.
The sampling will be conducted in general accordance with the Interstate Technology Regulatory Council
(ITRC) guidance documents.'
3.2 Soil Sampling
The structure will be slab on grade with the exception of the stairwells and elevator shaft as described in
Section 1. Lowest utility determined thus far would be the storm drainage. Lowest point the storm drain
system is the bottom of the pond. Bottom of the pond is at 95 per C3.0, Finish Floor Elevation (FFE) of
Building is 103, therefore bottom of pond is 8' below building FFE or existing grade in that area is 99 and
therefore 4 feet below current existing grade.
Soil borings will be advanced using a Geoprobe®. Geoprobe® soil borings will be advanced using the
Direct Push techniques using a Geoprobe®. The Geoprobe® consists of a hydraulic jack mounted on a drill
rig. The Geoprobe® is capable of driving various forms of groundwater and soil sampling probes into the
ground to depths equivalent of auger refusal. The soil samples will be collected by driving a 4-foot long,
' Vapor Intrusion Pathway: A Practical Guide 2007 and Vapor Intrusion Pathway: Investigative Approaches for Typical
Scenarios
7

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
1.5-inch-diameter sampling probe into the soil. The probe will be lined with a disposable clear plastic tube,
which will be replaced for each 4-foot interval. After the probe is driven, the clear plastic tube filled with
soil will be removed from the probe. The clear plastic tube will then be cut open to remove the soil. A
photoionization detector will be used to field screen soils from the borings. PID readings and other
visual/olfactory observations will be recorded in the soil boring logs. Soil samples for laboratory analysis
will be collected above the observed water table based on field screening results. If indications of impacts
are not noted, soil sample will be collected from the top two feet of the boring.
Samples for laboratory analysis will be placed in laboratory prepared containers using new disposable
nitrile gloves. After being filled, the sample containers will be labeled with the project name and number,
the time and date of sample collection, the analyses to be performed, and the absence or presence of
preservative. The filled sample containers will be placed into an ice filled cooler to maintain the samples at
approximately 4° Celsius.
Sample collection will be conducted in accordance with the NCDEQ Inactive Hazardous Sites
Program Guidelines for Assessment and Cleanup (July 2021).The samples will be compared to the North
Carolina DEQ Preliminary Soil Remediation Goals (PSRG, dated June 2021).
The probes will be decontaminated per boring using an alconox solution and a pressure washer.
3.3 Utility Line Soil Sampling
Proposed utility excavations will be to approximately 3 feet below existing grade. Soil borings will be
advanced using a stainless -steel hand auger. A photoionization detector will be used to field screen soils
from the borings. PID readings and other visual/olfactory observations will be recorded in the soil boring
logs. Soil samples for laboratory analysis will be collected above the observed water table based on field
screening results. If indications of impacts are not noted, soil sample will be collected from the top two feet
of the boring.
Samples for laboratory analysis will be placed in laboratory prepared containers using new disposable
nitrile gloves. After being filled, the sample containers were labeled with the project name and number, the
time and date of sample collection, the analyses to be performed, and the absence or presence of
preservative. The filled sample containers will be placed into an ice filled cooler to maintain the samples at
approximately 4° Celsius.
Sample collection will be conducted in accordance with the NCDEQ Inactive Hazardous Sites
Program Guidelines for Assessment and Cleanup (July 2021). The samples will be compared to the North
Carolina DEQ Preliminary Soil Remediation Goals (PSRG, dated June 2021).
Shallow soil borings will be abandoned by placing bentonite into the borings.
3.4 Groundwater Wells
Permanent groundwater wells will be installed using a rotary auger in the borings. The wells will consist of
two inch schedule 40 PVC riser pipe and 0.10, two inch schedule 40 screen. The wells will intercept the
groundwater table and be installed in general accordance with the North Carolina Administrative Code Title
15A-Well construction Standards. The wells will be installed with 10 feet of slotted PVC screen (0.01-inch
slot widths) positioned to intersect the water table at the time of drilling. The wells will be constructed with

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
2-inch I.D. Schedule 40 PVC flushed -threaded casing and screen. A six (6) inch filter pack sand will be
place in the boring prior to placement of the well material. The PVC screen and casing will be lowered to
the bottom of the boreholes. A ten -foot length of slotted well screen with machined 0.010-inch slot widths
and threaded bottom plug will be installed at the bottom of each well. A solid section of PVC casing was
placed above the screened interval and extended to a point approximately 1 foot above the ground surface.
The annular space between the PVC and the boring wall will be filled with well sand to at least two foot
above the well screen. Two feet of bentonite will be placed in the void above the filter pack. The remaining
void will be filled with grout to below the frost line. The grout will consist of Portland Cement.
Baseline water levels will be recorded and provided in the assessment report. The wells will be developed
24 hours after installation. Once the well has recovered back to or near the baseline water levels after
development, the water level will be recorded and at least three well volumes (0.2 gallons per foot of 2-
inch well is one well volume) will be purged prior to sampling. Development and purge water will be placed
in labelled 55-gallon drums. The Development and purging will be completed with low flow peristaltic
pump and dedicated tubing. Purging will continue until the turbidity readings are 10 NTU or less. If 10
NTUs have not been reached after purging six well volumes, the development will stop The NTUs will be
recorded after each well volume. In addition to turbidity, conductivity and pH readings will be monitored
at each well volume during purging to document stabilization readings. The samples will be collected using
a low flow peristaltic pump and dedicated tubing.
All on site wells will be measured for groundwater depth at least 24 hours after sampling. The monitoring
wells will be surveyed for relative elevations and a potentiometric map will be generated.
4.0 LABORATORY ANALYSES
4.1 Soil Gas Samples
The soil gas samples will be submitted to EMSL Analytical in Pineville, North Carolina, under the chain
of custody protocol and will be analyzed using USEPA Method TO-15. The laboratory is certified by AIHA
with the Laboratory ID of LAP-192283. A copy of the certification has been included in Appendix A. The
Reporting Limits/Method Detection Limits and the Reporting of J-Flags will meet applicable screening
criteria. The hold time for this media is up to 30 days. Based on this hold time requirement, there is not a
concern with hold times. Table 3 includes the TO-15 analyte list, the laboratory reporting and method
detection limits, and the applicable screening levels.
4.2 Soil and Groundwater Samples
The soil and groundwater samples will be submitted to Pace Analytical Laboratory located at 9800 Kincey
Avenue, Suite 100 in Huntersville, North Carolina under the chain of custody protocol. The laboratory is
certified by NCDEQ Laboratory Certification Branch (Certificate is attached in Appendix A).
The samples will be laboratory analyzed for the following:
• VOCs by EPA methods 8260. The Reporting Limits/Method Detection Limits and the Reporting
of J-Flags will meet applicable screening criteria. The hold time for this analysis is up to 7 days.
Based on this hold time requirement, there is not a concern with hold times.
• SVOCs by EPA Method 8270. The Reporting Limits/Method Detection Limits and the Reporting
of J-Flags will meet applicable screening criteria. The hold time for this analysis is up to 14 days.
Based on this hold time requirement, there is not a concern with hold times.
6t

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
RCRA 8 metals by method 6010 ICP metals and 7471 Mercury (including hexavalent chromium
by method 7199). The Reporting Limits/Method Detection Limits and the Reporting of J-Flags will
meet applicable screening criteria. The soil hold time for these analysis is up to 28 days. Based on
this hold time requirement, there is not a concern with hold times. The groundwater hold time for
methods 6010 and 7471 analysis is up to 28 days. Based on this hold time requirement, there is not
a concern with hold times. The groundwater hold time for method 7199 analysis is up to 28 days.
Based on this hold time requirement, there is not a concern with hold times.
5.0 QA/QC
The samples will be collected in laboratory supplied contains, providing adequate sample volume for the
MS/MSD analysis (level 2). One duplicate sample will be collected for every 20 samples, per media, per
method. One trip blank for 8260 (groundwater) will accompany each cooler. The samples, duplicate
samples and trip blanks will be submitted under the chain of custody. The soil and groundwater samples
will be submitted to Pace Analytical Laboratory under the chain of custody protocol.
The soil gas samples will be submitted to EMSL Analytical in Pineville, North Carolina under the chain of
custody protocol.
6.0 INVESTIGATION DERIVED WASTE (IDW) MANAGEMENT
Soil generated from the borings that is not collected as a sample will be left on -site stored in labeled 55 gallon
drums. If laboratory data indicates compliance with PSRGs, the soil will be spread on site. If data indicates
exceedances of PSRGs, the waste will be collected and disposed under manifest.
Groundwater development and purge water generated on site will be stored in labeled 55 gallon drums. If
laboratory data indicates compliance with 2L standards, the purge water will be drained on site. If groundwater
data indicates exceedances of 2L, the waste will be collected and disposed under manifest.
7.0 REPORTING
ASE will provide an electronic copy of the finished report that will consist of a summary of the project
information, the results obtained, and our conclusions and recommendations. Tables for tabulated analytical
data per media sampled and analyzed, compared against applicable screening levels will be included in the
report. Figures will be generated to depict the actual sample locations and the potentiometric surface. The
figures will have approximate scale and north arrow depicted. The report will be sealed by a North Carolina
Licensed Professional Engineer, by a licensed firm. The following will be included in the report.
• Groundwater will be compared to 2Ls and groundwater VISLs.
• Non -detectable levels will be reported as less than the applicable reporting limit, noting any
reporting limits that exceed the respective screening level.
• Details on building additions, slab types and sub -grade features such as the locations of crawl
spaces, tunnels, basements, sub -grade walls, and footer walls encountered during assessment.
10

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
December 28, 2021
• Boring log for all soil and soil gas locations.
• Potentiometric map.
11

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
Figures
December 28, 2021

Figure 1: Site Location Topographic Map
Legend
0 Site Location
Service Layer Credits: USGS The National Map: National Boundaries
Dataset, 3DEP Elevation Program, Geographic Names Information
System, National Hydrography Dataset, National Land Cover
Database, National Structures Dataset, and National Transportation
Dataset; USGS Global Ecosystems; U.S. Census Bureau TIGER/Line
data; USFS Road Data; Natural Earth Data; U.S. Department of State
Humanitarian Information Unit; and NOAA National Centers for
Environmental Information, U.S. Coastal Relief Model. Data refreshed
October 2018.
sh
o�
C`
4�'OP
Sampling Work Plan
520 Judson Church Road
Fayetteville, North Carolina
Project Number: 1487
0 0.05 0.1
0.2 Miles
En`Zronmeni<il Services, Ltd.

�ireavare '." glMwrna r
New Construction
(Hotel)
4 + 119 r001116 „ i i
rfllrrrrllri3; J11. ��n
t
LL
CaeYagemelr r__ C
riVci'.14
�� .. 124 padmV spaces _ ]
Foundation o . ,....
------------ ff., 6---------------------------
ormer building
l —, r•� �:, Brownfield
Provertv Bounda
�h.v.aiti
rereerar 1 - 1
Detention pond area �••*•;I"",•.----- .r�.�.e�...�...
1 er.anaorww«.e ' I I I
I n.reeour I 4d�w..« '-
1 LP xa'4mY n :n�
1 I I I I I
y �
Y'
__ Y rrr .o� r.. b rr. ,` _ .•y .� 94.oa wwcya _-
JUDSCN CHURCH ROAD __. 41EIr dP - ...
r
FIGURE 2 — PROPOSED REDEVELOPMENT xooe N
Source: Chao & Associates Inc Civil drawing C2.0
East Side Truck Service ��c 'Shoj ASE Project No. 1487
520 Judson Church Road
Fayetteville, North Carolina s October 2021
Brownfields Project No: 25009-21-026
Environmental Services, Ltd.

Key:
►.
Existing/former MW
Soil gas Samples
®
Soil and groundwater
Samples
Soil Samples
Potable well
GRAPHIC SCALE
SG-1 r SG-3
t
® - ,.SG-2/2D 3G-4
B-7/IViW7 ` ° .r Proposed Building
B-8/MW8/MW8D
11
SG-5/T1-SS
B-9/MW9
VI
M SW -SS
Of
T2-S"P?
FIGURE 3 — Proposed Sample Locations N
Source: Site Plans
East Side Truck Service �l�c Shor
520 Judson Church Road Ns
Fayetteville, North Carolina ASE Project No. 1487
Brownfields Project No: 25009-21-026/` October 2021
Environmental Services, Ltd.

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
Tables
December 28, 2021

TABLE 1 - PROPERTY SUMMARY
BF Project
Parcel No.
Address
Site Acreage
Former/Current Uses
Proposed use
The site was a combination of agricultural/pasture land and limited
wooded land from at least the late 1930s through the 1970s. County tax
records indicate the former site building was constructed in 1983. Local
knowledge suggests the site building initially served as a warehouse for
Cumberland County
520 Judson Church Road,
the assembly of hotel room modules during the 1980s. The site building
East Side Trucking # 25009-21-026
REID. 0455489188000
Fayetteville NC
3.38
was reportedly vacant until approximately 2009-2010 at which time truck
Hotel
repair activities were established at the site building under the name A's 24
Hour Truck Repair. East Side Truck Service began operations at the
project site in April 2018. The truck repair businesses have been owned
and operated by members of the same family. The bulding was vacated in
March 2020 and razed in January 2021 The site is currently vancant.

TABLE 2 -SAMPLE SUMMARY
East Side Truck Service
PCE
Numer of
L/QC
Reporting
�Iimit­
Objective
Type of Sample
samples
Sample ID
Depth of Sample
Sample Analysis
Soil Samples
Evaluate soil- From monitoring well location
Just above the observed water
MW-7. This location will evaluate the on site
B-7
table
septic system.
Evaluate soil- From monitoring well
Based on field screening. If
locations. MW-8
B-8
indication are not observed, at
final grade depth (0-1 feet bgs)
Evaluate soil- From monitoring well
Based on field screening. If
locations. MW-9.
B-9
indication are not observed, at
final grade depth (0-1 feet bgs)
At base of utility trench or from
Evaluate soil along unitity trenching
the top 2 feet of the boring if
EPA Methods 8260 and 8270 and RCRA 8
(locations to be determined)
Soil Samples
P
8
Tl-SS
indications of impacts are not
metals (including Chromium VI Method
( g )
9.2 u g/8B
apparent.
6020/7471, and Cr VI by EPA Method 7199.
At base of utility trench or from
Evaluate soil along unitity trenching
the top 2 feet of the boring if
(locations to be determined)
T2-SS
indications of impacts are not
aricatert
T3-SS
At base of utility trench or from
Evaluate soil along unitity trenching
the top 2 feet of the boring if
(locations to be determined)
indications of impacts are not
T3-SSD
apparent.
Duplicate
Evaluate soil in the proposed stonnwater
SW -SS
4 feet
pond
Groundwater Samples
Evaluate groundwater in the area of the on
site septic system.
MW-7
Wells will be advanced to
EPA Methods 8260 and 8270 and RCRA 8
Evaluate in a
MW-8
grounbdwater presumed
downgradient loction of the identified plume
Groundwater Samples
4
approximatley 8.5 feet below the
metals (including Chromium VI)Method
0.5 ug/L
MW-8D
observed water table
6020/7471, and Cr VI by EPA Method 7199.
Duplicate
Evaluate grounbdwater in a presumed
MW-9
downgradient loction of the identified plume
Soil Gas Samples
SG-1
Evaluate soil gas in the area of the
5 feet bgl. if the water table is
SG-2
proposaed hotel footing and along the
Soil
6
identified within 5 feet, the
installed
TO-15, library
2.3 ug/m3
SG-2D
Duplicate
closest utility trench to the impacted
gas samples
sampling port will
plus search
SG-3
ry
just above the observed water
SG-4
groundwater
table.
SG-5
*Trip blank per cooler for 8260 groundwater analysis
•• Reporting limit may vary based on concetration of analytes in the samples

Table 3 - EMSL
Volatile Organic Compounds by EPA TO-15 (74-compound list)
Compound
CAS#
Molecular
Weight
USEPATO-1S
Sub Slab and Exterior
Screening levels
Target List
RL (ug/m3)
ug/m3
Acetone
67-64-1
58.08
1.2
220,000
Acetonitrile
75-05-8
41
0.8
420
Acrylonitrile
107-13-1
53
1.1
1.4
3-Chloropropene (Allyl chloride)
107-05-1
76.53
1.6
7
Benzene
71-43-2
78.11
1.6
12
Benzyl chloride
100-44-7
126
2.6
1.9
Bromodichloromethane
75-27-4
163.8
3.3
2.5
Bromoethane (Ethyl bromide)
74-96-4
108
2.2
35
Bromoform
75-25-2
252.8
5.2
85
Bromomethane
74-83-9
94.94
1.9
3.1
1,3-Butadiene
106-99-0
54.09
1.1
3.1
n-Butane
106-97-8
58.121
1.2
NE
Chlorobenzene
108-90-7
112.61
2.3
350
Chloroethane (Ethyl Chloride)
75-00-3
64.521
1.3
70000
Chloroform
67-66-3
119.4
2.4
4.1
Chloromethane
74-87-3
50.49
1
630
Carbon disulfide
75-15-0
76.14
1.6
4900
Carbon tetrachloride
56-23-5
153.8
3.1
16
2-Chlorotoluene
95-49-8
126.6
2.61
NE
Cyclohexane
110-82-7
84.16
1.7
42000
Dibromochloromethane
124-48-1
208.3
4.3
NE
1,2-Dibromoethane
106-93-4
187.8
3.8
28
1,2-Dichlorobenzene
95-50-1
147
3
1400
1,3-Dichlorobenzene
541-73-1
147
3
NE
1,4-Dichlorobenzene
106-46-7
147
3
8.5
Freon 12 (Dichlorodifluoromethane)
75-71-8
120.9
2.5
700
1,1-Dichloroethane
75-34-3
98.96
2
58
1,2-Dichloroethane
107-06-2
98.96
2
3.6
1,1-Dichloroethene
75-35-4
96.94
2
1400
1,2-Dichloroethene (cis)
156-59-2
96.94
2
NE
1,2-Dichloroethene (trans)
156-60-65
96.94
2
280
1,2-Dichloropropane
78-87-5
113
2.3
25
1,3-Dichloropropene (cis)
542-75-6
1111
2.3
23
1,3-Dichloropropene (trans)
10061-02-6
111
2.3
Freon 114 (1,2-Dichlorotetrafluoroethan
76-14-2
170.9
3.5
NE
1,4-Dioxane
123-91-1
88.12
1.8
19
Ethyl acetate
141-78-6
88.1
1.8
490
Ethanol
64-17-5
46.07
0.9
NE
Ethylbenzene
100-41-4
106.2
2.2
37
4-Ethyltoluene
622-96-8
120.2
2.5
NE
n-Heptane
142-82-5
100.21
2
2800
Hexachloro-1,3-butadiene
87-68-3
260.8
5.3
NE
n-Hexane
110-54-3
86.17
1.8
4900
Isopropyl alcohol (2-Propanol)
67-30-0
60.1
1.2
NE
Isopropyl benzene (Cumene)
98-82-8
120.19
2.5
2800
Methylene chloride
75-09-2
84.94
1.7
3400
2-Hexanone (MBK)
591-78-6
100.1
2
210
2-Butanone (MEK)
78-93-3
72.1
1.5
35000
4-Methyl-2-pentanone (MIBK)
108-10-1
100.21
2
21000
Methyl methacrylate
80-62-6
100.12
2
4900
Methyl-tert-butyl ether (MTBE)
1634-04-4
88.15
1.8
360
Naphthalene
91-20-3
128.17
2.6
2.8
Propylene
115-07-1
58.08
2.4
21000
Styrene
100-42-5
104.1
2.1
7000
Tertiary butyl alcohol (TBA)
75-65-0
74.12
1.5
NE
1,1,2,2-Tetrachloroethane
79-34-5
167.9
3.4
13
Tetra chi oroethene
127-18-4
165.8
3.4
280
Tetrahydrofuran
109-99-9
72.11
1.5
14000
Toluene
108-88-3
92.14
1.9
35000
1,2,4-Trichlorobenzene
120-82-1
181.5
3.7
14
1,1,1-Trichloroethane
71-55-6
133.4
2.71
35000
1,1,2-Trichloroethane
79-00-5
133.4
2.7
14
Trichloroethene
79-01-6
131.4
2.7
14
Freon 11 (Trichlorofluoromethane)
75-69-4
137.4
2.8
NE
Freon 113 (1,1,2-Trichloro-1,1,2-trifluoro
76-13-1
187.4
3.8
NE
1,2,4-Tri methyl benzene
95-63-6
120.2
2.5
420
1,3,5-Trimethyl benzene
108-67-8
120.2
2.5
420
2,2,4-Trimethylpentane (Isooctane)
540-81-1
114.2
2.3
NE
Vinyl acetate
108-05-4
86
1.8
1400
Bromoethene (Vinyl bromide)
593-60-2
106.9
2.2
6.2
Vinyl chloride
75-01-4
62.5
1.3
5.6
Xylene (para & meta)
1330-20-7
106.2
4.3
700 (for each)
Xylene (ortho)
95-47-6
106.2
2.2
70
NCDEQ Residential Vapor Intrusion Screeningi Levels June 2021

TABLE 4 - Historical Groundwater Sampling Results
520 Judson Church Road
Fayetteville, North Carolina
Brownfield No.25009-21-026
Sample ID
TMW-1
TMW-2
MW-1
MW-2 I
MW-3 I
MW4 I
MW-5 I
MW-6
Bl-S1
I B2-S2
NCDEQ
Groundwater Quality
Standards
NCDEQ Gross
Contaminant Level
Date
11/30/2011/30/2017/9/20-1
9/2/20
9/30/20
9/2/20
9/30/20
9/2/20
9/30/20
9/2/20
9/30/20
9/2/20
9/30/20
9/30/20
12/2/20
12/2/20
VOCs u L)
Acetone
NA
NA
NA
NA
<50
NA
<50
NA
<50
NA
5.4
NA
5.1
7.3
32.5
<25.0
6,000
6,000,000
Bromodichloromethane
NA
<0.25
*
<0.231
<0.5
0.33
<0.5
<0.209
<0.5
<0.209
<0.5
<0.209
<0.5
<0.5
<1.0
<1.0
0.6
NE
Chloroform
NA
<0.16
1.36
<0.259
<2.0
3.17
<2.0
6.11
<2.0
5.69
<2.0
<0.259
<2.0
<2.0
<5.0
<5.0
70
70,000
Methyl bromide (Bromomethane)
NA
1.94
*
<1.05
<2.0
<1.05
<2.0
<1.05
<2.0
<1.05
<2.0
<1.05
<2.0
<2.0
<2.0
<2.0
10
10,000
Methyl Chloride (Chlormethane)
NA
176
*
<0.318
<2.0
<0.318
<2.0
<0.318
<2.0
<0.318
<2.0
<0.318
<2.0
<2.0
<1.0
<1.0
3
3,000
Tetrachloroethene
NA
21.7
2.9
4.58
5.3
<0.5
0.23
<0.5
<1.0
<0.5
<1.0
13.6
19
4.3
<1.0
1.4
0.7
700
SVOCs (ug/L)
Benzo(a)anthracene
NA
<1.46
*
NA
0.027J
NA
0.027J
NA
0.027J
NA
0.036J
NA
0.025J
<0.052
NA
NA
0.05
4.7
Benzoic Acid
NA
<1.59
*
NA
6.9J
NA
<11
NA
<9.8
NA
<10
NA
<9.8
<10
NA
NA
30,000
1,700,000
Diethylphthalate
NA
<1.38
*
NA
1.6J
NA
<11
NA
LIJ
NA
4.3J
NA
2.2J
0.72J
NA
NA
6,000
NE
2,4-Dimethylphenol
NA
<1.44
*
NA
1.3J
NA
<11
NA
<9.8
NA
<10
NA
1.4J
1.OJ
NA
NA
100
100,000
Metals (ug/L)
Chromium
14.2
9.3
*
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
10
10,000
Lead
7.4
2.75
*
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
15
15,000
Values are in ug/L, NA - Not Analized, NE - Not Established
Bold values exceed the NCAC 2L Groundwater Quality Standards set by the North Carolina Department of Environmental Quality (April 1 2013)
* Data provided in WlthersRavenel Monitporing Well Installation Report for the siredated September 23, 2020 - Laboratory data sheets for this information was not included in the report.

TABLE 5 - Historical Soil Sampling Results
520 Judson Church Road
Fayetteville, North Carolina
Brownfield No.25009-21-026
Sample ID
SB-1
SB-2
SB-3
S114
SB-5
North
East
South
West
Floor
Depth (Feet)
2.5
3
3
2.5
5
3
3
3
2.5
2.5
2.5
2.5
4.5
Soil toWater
Residential
Date
1/30/20
1/30/20
1/30/20
1/30120
1130/20
1/30/20
1/30/20
1/30/20
7/2/20
7/2/20
7/2/20
7/2/20
7/2/20
MSCC
VOCs (mg/kg)
N-Butylbenzene
NA
NA
NA
0.0332
<0.000853
NA
NA
NA
NA
NA
NA
NA
NA
5.4
780
Sec-Butylbenzene
NA
NA
NA
0.014
<0.000636
NA
NA
NA
NA
NA
NA
NA
NA
4.1
1600
Ethybenzene
NA
NA
NA
0.0193
<0.000547
NA
NA
NA
NA
NA
NA
NA
NA
13
6.1
Isopropylbenzene (Cumene)
NA
NA
NA
0.00681
<0.000734
NA
NA
NA
NA
NA
NA
NA
NA
2.3
410
P-Isopropyholuene
NA
NA
NA
0.00701
<0.000774
NA
NA
NA
NA
NA
NA
NA
NA
NE
NE
Naphthalene
NA
NA
NA
0.0237
0.0013J
NA
NA
NA
NA
NA
NA
NA
NA
0.39
21
N- Propylbenzene
NA
NA
NA
0.0184
<0.000757
NA
NA
NA
NA
NA
NA
NA
NA
2.6
780
Tetrachlomethene
NA
NA
NA
2.85
<0.000145
NA
NA
NA
NA
NA
NA
NA
NA
0.0063
17
Toluene
NA
NA
NA
0.0256
<0.000569
NA
NA
NA
NA
NA
NA
NA
NA
8.3
990
1,2,4-Trimentylbenzene
NA
NA
NA
0.392
<0.000697
NA
NA
NA
NA
NA
NA
NA
NA
12
63
1,3,5-Trimethylbenzene
NA
NA
NA
0.324
<0.000788
NA
NA
NA
NA
NA
NA
NA
NA
11
56
Total Xylenes
NA
NA
NA
0.234
<0.000693
NA
NA
NA
NA
NA
NA
NA
NA
10
120
SVOCs (mg/kg)
Pyrene
NA
NA
NA
0.251J
<0.0683
NA NA
NA
NA
NA
NA
NA
NA
360
MADEP VPH/EPH (mg/1
C5-C8 Aliphatics
NA
NA
NA
<7.9
<9.1
1 NA NA
NA
NA
NA
NA
NA
NA
68***
939***
C9-C18 Aliphatics
NA
NA
NA
279
<6.46
NA NA
NA
NA
NA
NA
NA
NA
540
1500
C19-C36 Aliphatics
NA
NA
NA
2160
<8.61
NA NA
NA
NA
NA
NA
NA
NA
Immobile
31000
C9-C22 Aromatics
NA
NA
NA
443.1
<9.15
NA NA
NA
NA
NA
NA
NA
NA
31
469
Metals (mg/kg)
Chromium
3.21
NA
NA
7.04
3.62 NA NA
NA
NA
NA
NA
NA
NA
NE
NE
Lead
1.58J
NA
NA
4.79
2.07J NA NA
NA
NA
NA
NA
NA
NA
NE
400
TPH GRO/DRO (mg/kg
TPWGRO (mg/kg)
NA
1 <0.36
1 <0.53
1 NA
NA 1 43.3 1 41.9
1 <0.32
1 7.6
1 <**
1 144.5
1.3
<**
50*
NE
TPH/DRO(mg/kg)
NA
1 <0.36
1 <0.53
NA
NA 1 502.4 1 526.9
1 <0.32
1 2.6
<**
46.1
4
1.2
100*
NE
Values are in ug/L, NA - Not Analized, NE - Not Established
Bold values exceed North Carolina DEQ Preliminary Soil Remediation Goals (PSRG, dated June 2021).
* NCDEQ Action level, ** Non detect in WithersRavenel Initial Abatment Action Report dated July 16, 2020. However, no supporting lab data was in the report. ***NCDEQ
UST MSCC

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
Appendix A
Laboratory Certifications
December 28, 2021

r

5t5�I I illy+/
� ANA
JAboratory Accreditation
Programs, LLQ
F{�f rl1 II I5 `5 �k
AIHA Laboratory Accreditation Programs, LLC
acknowledges that
EMSL Analytical, Inc.
10801 Southern Loop Blvd., Pineville, NC 28134
Laboratory ID: LAP-192283
along with all premises from which key activities are performed, as listed above, has fulfilled the requirements of the AIHA Laboratory Accreditation Programs (AIHA-LAP),
LLC accreditation to the ISO/IEC 17025:2017 international standard, General Requirements for the Competence of Testing and Calibration Laboratories in the following:
LABORATORY ACCREDITATION PROGRAMS
INDUSTRIAL HYGIENE
ENVIRONMENTAL LEAD
ENVIRONMENTAL MICROBIOLOGY
FOOD
UNIQUE SCOPES
Accreditation Expires: September 01, 2022
Accreditation Expires: September 01, 2022
Accreditation Expires: September 01, 2022
Accreditation Expires:
Accreditation Expires:
Specific Field(s) of Testing (FoT)/Method(s) within each Accreditation Program for which the above named laboratory maintains accreditation is outlined on the attached Scope
of Accreditation. Continued accreditation is contingent upon successful on -going compliance with ISO/IEC 17025:2017 and AIHA-LAP, LLC requirements. This certificate is
not valid without the attached Scope of Accreditation. Please review the AIHA-LAP, LLC website (www.aihaaccreditedlabs.org) for the most current Scope.
Cheryl O Morton
Managing Director, AIHA Laboratory Accreditation Programs, LLC
Revisionl9: 09/01/2020 Date Issued: 09/01/2020

AIHA
Leboratosry Accr-editation
Programs, LLt;
ANA Laboratory Accreditation Programs, LLC
SCOPE OF ACCREDITATION
EMSL Analytical, Inc. Laboratory ID: LAP-192283
10801 Southern Loop Blvd., Pineville, NC 28134 Issue Date: 08/31/2020
The laboratory is approved for those specific field(s) of testing/methods listed in the table below. Clients are urged to
verify the laboratory's current accreditation status for the particular field(s) of testing/Methods, since these can change
due to proficiency status, suspension and/or withdrawal of accreditation.
Industrial Hygiene Laboratory Accreditation Program (IHLAP)
Initial Accreditation Date: 10/01/2014
IHLAP Scope Category
Field of Testing (FOT)
Technology sub-
type/Detector
Published Reference
Method/Title of
In-house Method
Component, parameter
or characteristic tested
Asbestos/Fiber
Microscopy Core
Phase Contrast
Microscopy (PCM)
NIOSH 7400
Asbestos/Fibers
Chromatography Core
GUMS
EPA TO-15
Volatile Organic Compounds
Chromatography Core
Gas Chromatography
GC/ECD
NIOSH 5503
Polychlorinated biphenyls
Chromatography Core
Gas Chromatography
GC/FID
NIOSH 1003 Modified
Halogenated Hydrocarbons
Chromatography Core
Gas Chromatography
GC/FID
NIOSH 1500
Hydrocarbons
Chromatography Core
Gas Chromatography
GC/FID
NIOSH 1501
Aromatic Hydrocarbons
Chromatography Core
Ion Chromatography (IC)
NIOSH 7903
Inorganic Acids
Chromatography Core
Ion Chromatography (IC)
OSHA ID-165SG
Inorganic Acids
Chromatography Core
Liquid Chromatography
HPLC/UV
NIOSH 2O16
Formaldehyde
Chromatography Core
Liquid Chromatography
HPLC/UV
NIOSH 5506
PAHs
Chromatography Core
Liquid Chromatography
HPLC/UV
OSHA 42
Isocyanates
Chromatography Core
Liquid Chromatography
HPLC/UV
OSHA 47
Isocyanates
Miscellaneous Core
Gravimetric
NIOSH 0500
Total Dust
Miscellaneous Core
Gravimetric
NIOSH 0600
Respirable Dust
Miscellaneous Core
Gravimetric
NIOSH 5000
Carbon Black
Spectrometry Core
Atomic Absorption
CVAA
NIOSH 6009
Mercury
Spectrometry Core
Atomic Absorption
FAA
NIOSH 7082
Lead
Spectrometry Core
Inductively -Coupled Plasma
ICP/AES
NIOSH 7300
Metals
Effective: 11 /21 /2019
Revision: 9
Page 1 of 2

AIHA
Laboratory Accr-editation
Programs, LLB
Technology sub-
Published Reference
Component, parameter
IHLAP Scope Category
Field of Testing (FOT)
type/Detector
Method/Title of
or characteristic tested
In-house Method
Spectrometry Core
Inductively -Coupled Plasma
ICP/AES
NIOSH 7303
Metals
Spectrometry Core
Infrared
NIOSH 7602
Silica
A complete listing of currently accredited IHLAP laboratories is available on the AIHA-LAP, LLC website at: http://
www.aihaaccreditedlabs.org
Effective: 11 /21 /2019
Revision: 9
Page 2 of 2

Sampling Work Plan R4
East Side Trucking Service
520 Judson Church Road
Fayetteville, North Carolina
Brownfield project number: 25009-21-026
Appendix B
Entech Helium Analyzer Quick Guide
December 28, 2021

A& E/VTEc"
`F/ INSTRUM-NTS
Analyzer Hardware: Refer to figures 1 and 2.
USB Connector. On the left side of the analyzer. It is used for firmware updates should they be needed.
Display. 5 x 21 characters.
Keypad:
- ON/OFF: Power the unit on and off. Press for about one second to power on or power off. When the
unit is powered up the analyzer runs a self test before switching to the measurement mode. The gas
composition will be displayed after about 5-10 seconds or somewhat longer.
- MENU: Use to display options. The selections will change in the various modes.
- ENTER: Enter the selected menu item, confirm a change in settings, or perform an action.
- ESC: Escape. Use to exit a menu without saving a change.
- UP/DOWN: Arrows. Use to browse the menu or change a value above the cursor.
- MODE: Change the display mode or change the cursor position when editing numbers.
Analyzer Power Up: Press and Hold the ON/OFF button for one second.
Analyzer Power Off: Press and Hold the ON/OFF button for one second.
Analyzer Calibration: This procedure is for a one point calibration.
- Press CAL.
- Choose "1 point cal." (ENTER).
- Confirm "air value" (ENTER).
- When "STABLE" is displayed start analyzing (ENTER).
Analyzer Helium Measurement: Note that the analyzer must be calibrated before its first use.
- Connect the Shroud's Helium test out line to the Input Port using 1/,6" tubing.
- Connect a syringe with 16 gauge blunt end needle to the exhaust port on the analyzer.
- Quickly pull up on the syringe plunger to pull the gas from the helium shroud through the analyzer.
- After 5-10 seconds the gas composition will be displayed.
- Use the ENTER key to suspend or resume measurements. input Port —1 r Exhaust Port
- Remove the syringe from the exhaust once a measurement
has been obtained.
HELIUM ANALYZER
��
Rrwy
Figure 1. Angle View Figure 2. Front View

WARNING:
The Helium Analyzer is designed for measuring the content of oxygen and helium in an air -oxygen -helium
gas mixture. The presence of other gases at high PPM to % level may create a biased high or low error.
The physical and chemical principles of the sensors do not guarantee that the sensors will be selectively
sensitive to a specific gas (oxygen, helium) as there are other gases to which the sensors respond.
The Helium Analyzer should be occasionally checked for accuracy using a known amount of helium in air.
In particular, a gas mixture of 20% Helium in Air and 1 % Helium in Air should be tested to verify accuracy
at these levels.
The Helium Analyzer should not be used for any other applications other than measuring Helium in soil
gas sampling shrounds, and should only be used for that purpose.
Before field use plug in the analyzer and fully charge its battery.
Power up the analyzer by pressing the ON/OFF switch until the unit powers on. (Note that after the self
test is complete the analyzer will continuously make a slight pinging sound about once or twice per second.
This is normal.)
If the oxygen sensor on the analyzer has not been calibrated within the last month or for results with the
best precision calibrate the oxygen sensor.
Disconnect the inlet fitting the stainless steel fitting (shown in figure 2) from the Helium Analyzer.
Connect the 50 cc Luer-Lok syringe with 16 gauge blunt tip needle to the exhaust of the Helium Analyzer
(refer to figure 2). Pull 30-50 cc of ambient air through the analyzer.
Press CAL. Select two point calibration. Hit ENTER. Use the arrow keys to set the oxygen content to 21.0%
(usually not necessary). Once STABLE appears on the display press ENTER.
Set the oxygen content to 0% with the arrow keys (the mode key can change the magnitude of the change).
Open the helium slightly. Pull 50 cc of pure helium into the syringe and then immediately close the helium.
Then quickly inject the 50 cc of helium through the inlet of the Helium Analyzer. When STABLE appears on
the display press ENTER. The Helium Analyzer is now calibrated. Pull 150 cc of ambient air through the
analyzer using the syringe on the exhaust to flush out the analyzer.
Set both valves in the helium shroud to off and connect the can(s).
Fill Shroud with Helium and verify a concentration at 18-22%.
Connect 1/8" line from the helium shroud to the inlet of the helium detector. Turn the Purge/
Helium Select Valve to the Helium In Shroud Test Position. Connect the 50 cc syringe with
16 gauge blunt tip need to the exhaust of the Helium Analyzer. Quickly pull 50 cc of gas through
the analyzer. Then note the helium reading once it is STABLE. Once the shroud reading is done
switch the valve shroud back to the Off position.
Check that the sample line concentration is below 1 %.
Total the length of the down hole line and the line from the Helium Analyzer to the sampler.
Multiply this by 3 cc/ft (or 10 cc/meter) to estimate the volume of the tubing. Multiply this again
by three to calculate the flush volume.

The 1/8" line should still be connected between the helium shroud and inlet of the helium detector.
Turn both valves on the helium shroud to the Purge position. Connect the 50 cc syringe with 16
gauge blunt tip need to the exhaust of the Helium Analyzer. Quickly pull the flush volume of gas
through the analyzer. Then note the helium reading once it is STABLE. Once the downhole reading
is done switch both valves back to the Off position. The helium level must be below 1 % before
starting to sample.
Start the canister sampling.
Every five minutes during sampling verify that Helium in the shroud is >18%. If not, add more helium up to 22%.
The 1/8" line should still be connected between the helium shroud and inlet of the helium detector.
Turn the Purge/Helium Select Valve to the Helium In Shroud Test Position. Connect the 50 cc
syringe with 16 gauge blunt tip need to the exhaust of the Helium Analyzer. Quickly pull 50 cc of
gas through the analyzer. Then note the helium reading once it is STABLE. Once the shroud reading
is done switch the valve shroud back to the Off position.
When the canister pressure is within 3" hg of atmospheric pressure, recheck the line again to verify that
concentrations are below 1 %.
Turn both valves on the shroud to their Off positions.
Total the length of the down hole line and the line from the Helium Analyzer to the sampler.
Multiply this by 3 cc/ft (or 10 cc/meter) to estimate the volume of the tubing. Multiply this again
by three to calculate the flush volume.
The 1/8" line should still be connected between the helium shroud and inlet of the helium detector.
Turn both valves on the helium shroud to the Purge position. Connect the 50 cc syringe with 16
gauge blunt tip need to the exhaust of the Helium Analyzer. Quickly pull the flush volume of gas
through the analyzer. Then note the helium reading once it is STABLE. Once the downhole reading
is done switch both valves back to the Off position.
Remove the canister and directly check the contents for helium as needed.
Remove the line and fitting from the inlet of the helium detector. Turn the Sample Control Valve on
the shroud to the Off position (this should have already been done) and then remove the can(s)
from the helium shroud and sampler. Connect the 50 cc syringe with blunt tip needle to the sample
can and pull 10 cc into the syringe. Quickly move the syringe from the can and connect the 50
cc syringe with 16 gauge blunt tip needle to the inlet of the analyzer. Then quickly depress the
syringe plunger and note the helium reading once it is STABLE.
Turn off the Helium Analyzer. Press and hold the ON/OFF button until the Helium Analyzer powers off.
This is only valid for mixes of air, oxygen, and helium.
An electrochemical sensor is used to determine oxygen content. The voltage at the sensor's output is
proportional to the oxygen content of the gas analyzed. The sensor has a limited service life and the
proportionality of the voltage dependence on the oxygen content changes over time, therefore the oxygen
sensor must be calibrated regularly.

Helium content is determined by measuring the speed of sound in the gas. The speed of sound depends
on the content of helium and oxygen as well as the temperature of the gas. The dependence of the speed
of sound on pressure is small and can be disregarded near atmospheric pressure although the analyzer
contains a barometric pressure sensor. This sensor is used to calculate altitude but this may not give a
precise value due to atmospheric conditions.
At 0° C the speed of sound is about 970 m/s in pure helium, 330 m/s in air, and 315 m/s in pure oxygen.
Raising the temperature by one degree increases the speed of sound by 0.175%. The speed of sound in a
gas is described by a non -linear function of the temperature, oxygen content, and helium content.
The content of helium is determined by measuring the speed of sound, the temperature of the gas, and the
content of oxygen. When measuring the content of helium the oxygen sensor must be correctly calibrated,
or the actual oxygen content must be known and entered into the Helium Analyzer.
The speed of sound is measured directly as the time it takes for an acoustic impulse to travel between two
microphones. This measurement is performed alternatively in both directions to eliminate the influence of
the gas flow rate in the probe on the calculations. The acoustic impulses are heard as weak "clicks" from
the probe in the helium measurement mode.
The Helium Analyzer is made from a high strength aluminum alloy. Its surface is hard anodized to protect
against scratching.
On the front there is a keypad (refer to figure 3) and an OILED display.
Gas is fed through the inlet on the back on the analyzer and passes through the helium concentration
sensor. From there it enters the oxygen sensor block before exiting through the exhaust. The rated flow
for gases is 200 ml/min. Faster flow rates will not damage the analyzer, but accurate measurements will
not occur until the flow rate drops below 200cc/min. Pulling 20-50cc quickly through the analyzer with a
syringe will require a few seconds for a stable reading to be available.
The analyzer contains an internal lithium battery that can be recharged by an external power cord
connected to the left side. Alternatively, the lithium battery can be removed, and the analyzer can be
powered by a 9VDC battery. The 9VDC battery life is approximately 2 hours, so spare batteries should be
brought along to soil gas sampling sites.
A USB connector is on the left side in case the firmware must be updated.
Operation of
The analyzer is operated using its keypad.
ON/OFF: The analyzer is powered on or off by pressing the
ON/OFF key for about 1 second. Once the analyzer activates
the firmware version code and serial number of the analyzer
will be displayed until ON/OFF is released. After this start up
a self test, which will show the battery status, is completed
before the analyzer switches to the measurement mode for
helium and oxygen. Note that if the flow through the analyzer
is slower it may take somewhat longer for the results to
be determined. During the measurement if the reading is
displayed in square brackets the result is an interim result with
lower accuracy. When the brackets disappear the accuracy of
Figure 3. Key Pad

the result is final. If there is a measurement shock, such as a pneumatic shock in the inlet hose, the helium
concentration will disappear during the error state.
MENU: Use to display options. The selections will change in the various modes.
ENTER: Enter the selected menu item, confirm a change in settings, or perform an action. Pressing once
during measurements will suspend the measurement until ENTER is pressed again.
ESC: Escape. Use to exit a menu without saving a change.
UP/DOWN: Arrows. Use to browse the menu or change a value above the cursor. During a measurement
the up arrow can be used to increase the display brightness to the maximum temporarily.
MODE: Change the display mode or change the cursor position when editing numbers.
CAL: Starts the calibration process of the Oxygen (02) sensor.
The oxygen sensor's properties change over time and it requires recalibration. Recalibration should be
done at least once a month. For the most precise results the oxygen calibration should be done before
each measurement session.
Calibration of the sensor can be done as a one, two, or three point calibration. During a single point
calibration the concentration of oxygen in air, 20.95% (displayed as 21.0% after rounding) is measured by
the sensor. The calibration constant of the sensor is set
so the instrument displays 21.0%.
Two point calibrations are done in a similar way but use two calibration gases. Ambient air is one gas and
pure helium is the other (0% oxygen). It is requires more effort to do a two point calibration but it generates
more precise results.
Three point calibrations are done in a similar way but use 3 calibration gas, ambient air, pure helium, and
pure oxygen.
Calibration of the oxygen sensor is begun by pressing the CAL button.
First select single point, two point, or three point calibration using the arrow keys. Then press ENTER.
Then use the arrow keys to choose the oxygen content of the calibration mixture. Pressing an arrow once
will increase or decrease the oxygen content by 0.1 %. The MODE button can be used to change amount
that the arrow keys will adjust the oxygen content to by 10 percent per click, 1 percent per click, or 0.1 %
per click. Once the desired value is reached click ENTER button. To speed up the calibration procedure
the oxygen content of the first calibration point is 21 %, the second point is 100%, and the third is 0%. After
setting the value of each point the calibration of the sensor begins. The current calibration point, sensor
voltage in millivolts, and the temperature of the gas appear on the display. After the temperature and voltage
have stabilized, STABLE appears. Once STABLE appears confirm the calibration by pressing ENTER. If the
values change before ENTER is pressed then STABLE will disappear. For multi -point calibrations repeat
the procedures above for the additional point(s).

The properties of the analyzer may be selected using Menu/Preferences.
Brightness: Scale is from 1 to 127. 1 is the dimmest and 127 is the brightest. A setting of 1 will preserve
the battery. 127 is suitable for brightly lit spaces. To temporarily increase the brightness press the up
arrow button. When activating the heighten brightness option the brightness is increased to 127 when the
analyzer power is supplied by an external power supply adapter.
02 Cell Used: Its use is standard. If it is deactivated the OZ values are ignored and replaced with the
Oz subtitution value. This parameter allows the use of an analyzer with a worn out oxygen sensor for
measuring the concentration of helium. When used the correct setting of the oxygen concentration in the
analyzed mix increases the precision of the helium measurements (on the order of tenths of a percent).
Menu/Measurement Units: Use to set the units displayed by the systems. The units will not affect the
calculations.
The battery status is displayed briefly during the self test during analyzer startup. If can be seen at other
times by pressing the down arrow button. The status is shown between 0-100% fully charged.
To charge the analyzer simply plug it into its charger. The analyzer will work normally during charging.
Oxygen Sensor Replacement
Tools needed: A #1 Phillips Screwdriver and a 2.5 mm Hex Key.
Refer to figures 4 and 5.
The oxygen sensor has a limited service life. The analyzer automatically checks the sensor and at the end
of the sensor's life the analyzer will display a message of "Oxygen Sensor Expired" during the self test of
the analyzer that occurs during start up. Once this message appears the sensor should be replaced as
soon as possible as the accuracy of the oxygen measurement can no longer be guaranteed.
WARNING: The analyzer cover connects to the analyzer with several cables. When
replacing the sensor do not pull hard on these cables or disconnect them. Just
let them bend naturally and remain slack. Do not pull them tight by opening or
moving the cover too much.
To replace the sensor, remove the
battery cover and then unscrew
the three screws fastening
the cover to the instrument.
Carefully lift the cover, disconnect
the oxygen sensor, and then
remove the sensor along with its
aluminum block.
Figure 4. Removal of the three screws fastening the analyzer cover in place.

y IM uppercover
Move eerw a0
Figure 5. Helium Analyzer cables and the removal of the oxygen sensor.
Unscrew the old sensor. Install the new one with the 0-ring that seals it to the inlet block. Do not overtighten
the sensor to prevent damage to the threads.
Install the inlet block with sensor into the bottom half of the analyzer. The pins on the inlet block must fit
easily into the holes in the instrument body. While installing the block make sure the two 0-rings remain
connected to the pins. If needed use the spare 0-rings included with the analyzer.
Recalibrate the analyzer.
Disassembly of the Analyzer.
WARNING: Do NOT remove the printed circuit board from the analyzer. Replacing the circuit board requires
a special procedure and a calibration instrument.
Error Messages
Error 1 Helium Sensor doesn't work correct: There is an error in the electronic or mechanical s
ection of the helium sensor. The analyzer must be repaired to measure helium.
Error 2 Oxygen Sensor Damaged or Missing: The oxygen sensor is removed, disconnected, or
damaged. Replace the oxygen sensor.
Warning Oxygen Sensor switched Off: This message is displayed everytime the sensor is powered off.
Error 3 Oxygen Sensor expired:
The oxygen sensor is old and its output voltage is too low. The measurements will be inaccurate
and some measuring modes will not be able to be activated. An "Incorrect" warning will be
displayed next to the Oz concentration.
This error may also occur if the instrument is filled with a gas with low oxygen content when
the instrument is powered up. To prevent this use a syringe to flush the instrument with air
prior to start up. Never use your mouth to blow air into the inlet or outlet to avoid water condensation
inside the instrument.

Error 4 Device is too cold: The analyzer is too cold and the measurement may be inaccurate. Warm
up the analyzer in a warm room to increase its temperature above freezing (0° C or 32° F). Never
use a hot-air blower, heat gun, hair dryer, air dryer, an oven, or any similar method to warm up the analyzer.
Error 5 Device is too warm: The temperature of the analyzer is too high and the measurement
may be inaccurate. The analyzer may have been exposed to high temperatures (atmospheric or in
hot automobile, etc) or direct sunlight. Cool the analyzer to below 40' C or 104' F.
Error 6 External powerovervoltage: The allowed voltage of the external power source was exceeded.
This may be due to excessive voltage at the power outlet, a faulty power adapter, or an inappropriate
power adapter (not the original one). After the message is sent the analyzer will shut down to avoid
overheating the voltage stabilizer circuits. After a correct replacement adapter is connected the
analyzer will be able to be activated.
Instrument Malfunctions:
Helium Content is not Displayed:
The probe measuresthe speed of helium in both directions. If these speeds differthe measurements
are deemed incorrect and the helium content is not displayed. This can occurs gas flows through
the probe too quickly or if there is significant background noise (such a running compressor or engine).
If necessary lower the gas flow speed, eliminate the noise, or move away from the noise.
The instrument shows less than 0% or more than 100% helium in the mixture:
The value is directly from the measured and calculated value and is not changed by the firmware.
If the measurement is within +/- 0.2% of the expected value it is not a result of a defect. For
example if the measured gas does not contain helium but the helium value is between -0.2 to
0.2% helium the is no defect with the analyzer. For pure helium values between 99.8 and 100.2%
would be acceptable.
The instrument shows less than 0% or more than 100% oxygen in the mixture.
The oxygen value is directly from the measured and calculated value and is not changed by the
firmware. If the values are within +/- 0.5% of 0 or 100% they are within the measurement
tolerance and the instrument is functioning normally. If the values are outside of this tolerance
recalibrate the oxygen sensor. If the issue persists replace the oxygen sensor.

Dimensions of the Helium Analyzer
82 x 200 x 37 mm (3 1/4 x 7 7/8x 1 1/2 inches)
Weight
726 g (1.6 lb)
Range of measuring the concentration of oxygen
0 to 100%
Range of measuring the concentration of helium
0 to 100%
Measuring temperature
0 to +40' C (32 — 104- F)
Consistent with ambient pressure, in the
range of 700-1100 millibars (20-32 inches
Mixture pressure
of Hg) which corresponds to the standard
atmosphere at an elevation in the range of 0 to
3000 m (0-10000 feet) above sea level.
Rated gas throughput
0.2 L/min
Basis of measuring the speed of sound
800 mm
Measuring frequency
2 kHz
Oxygen sensor
Teledyne R-17D or compatible
Power source
3.8V 1000mAh Lithium -Ion rechargeable
battery or 12V adapter DC
Standard for a "DIN" valve (EN 144-2) for
200/300 bars (G 5/$thread). Samplers with a
The connection dimensions of the sampler
connection to any standardized or common
valves are available on request or as optional
equipment.

f E/VTECH
`,� INSTRUMENTS
Learn more online
Visit us at entechinst.com
laEntech Instruments
2207 Agate Court
Simi Valley, CA 93065
Phone:[phone]
Helium Analyzer manual—170823 -1.0
© Entech Instruments 2017