3405_Forsyth_RJReynolds_RuralHall_Indus_SedimentUpdateandRequest_FID1655560_20220318

Drummond, Jaclynne
From:
Hopkins, Max E. <[e-mail]>
Sent:
Friday, March 18, 2022 9:16 AM
To:
Drummond, Jaclynne
Cc:
Heim, Susan A; Watkins, Jason; Snow, William (Scott) S; Tom Wilson; Alan Martin
([e-mail]); Dave Wasiela; Jones, Steven K; Smith, Alden H; Pacheco
Rodriguez, Carlos E
Subject:
[External] Update on RJRT Rural Hall Landfill (Edwards Road) and Request to Cease
these Monthly Updates
Attachments:
ELL Dipole Test Report - RJ Reynolds LF.pdf
CAUTION: External email.
Do not click links or open attachments unless you verify. Send all suspicious email as an attachment to
Report Spam.
Hey Jackie,
In accordance with your April 20, 2020 letter regarding the Initial Sediment Boil Evaluation at the subject site, I am
providing the requested monthly update via this email.
3-1-22 Q1 2022 Cap Inspection Performed by ERM
No problems with the cap were found. No signs of any activity related to the boil area were observed.
Request to Cease these Monthly Updates
As indicated in previous updates, BLE attempted to perform an ELL survey at the site on 11-19-21. Due to issues with
cap isolation, it appeared that no useful data was collected. On 11-29-21, BLE submitted their survey report which
stated that although no anomalies or leak patterns were detected
within the existing landfill cap, there appeared to be issues with cap isolation during the test. On 12-8-21, you and I
discussed the BLE survey findings and the potential next steps. We concluded that we have exhausted all of our feasible
options to positively identify the cause of the boil. We also discussed the fact that the boil has not been active for about
the last 18 months. We discussed that RJRT could maintain the silt fencing at the boil area and continue to monitor this
area during our routine quarterly inspections of the landfill cap. With these measures in place, we determined that the
monthly email updates required by your 4-20-20 letter could be stopped.
RJRT has updated our quarterly landfill inspection form to included a check for boil activity and a check of the boil
sediment control measures. We will maintain these sediment control measures as appropriate. With this email, we are
requesting that the requirement for monthly email updates be removed. Of course we will keep you updated on any
significant findings resulting from our quarterly inspections.
For your information, we have also attached a copy of the BLE ELL survey report.
Please give me a call if you have any questions or if you require additional information regarding this matter.
Thank you for your help,
Max
336-741-6932 (office)
336-692-6154 (mobile)

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RUNNELS
� LAMMUNS
ENGINEERING
November 23, 2021
Max E. Hopkins
R.J. Reynolds Tobacco Company
P.O. Box 2959
Winston-Salem, NC 27102
Subject: Report of Electrical Leak Location (ELL)
Dipole Testing Method (ASTM D 7007)
R.J. Reynolds Landfill — Exiting Landfill Cap
Rural Hall, North Carolina
BLE Project Number J20-14576-01
Dear Mr. Hopkins:
Bunnell-Lammons Engineering, Inc. (BLE) is pleased to submit this report of Electrical Leak Location
(ELL) services associated with the existing landfill cap at the R.J. Reynolds Landfill. This report
documents the method and results for the ELL conducted by BLE on the soil covered liner system
installed for the Existing Landfill Cap.
PROJECT INFORMATION
The Existing Landfill Cap is located in Rural Hall, North Carolina. Our understanding of the project is
based on correspondence with Mr. Dave Wasiela, P.E. of ERM, Inc.
We understand that the Existing Landfill Cap was constructed approximately 7 years ago, with a cap
geomembrane overlain by 24-inches of soil cover and vegetation. A 4-acre section of the Existing
Landfill Cap will be evaluated by performing ELL on the soil cover layer surface for the covered
geomembrane, using the Dipole Method (ASTM D 7007).
It shall be noted that the cover soils are in -place, and the proposed ELL will be performed with no
isolation along the perimeter of the survey area. Without the perimeter isolation, the effectiveness of the
ELL survey is limited. The ELL survey is being performed to possibly locate geomembrane damage
within the 4-acre section of the closed cap area.
ELL TEST METHOD
Dipole Testing Method (ASTM D 7007)
The dipole method is used for geomembranes covered by soil, aggregate, water, or other conductive
materials. High voltage is applied to the material covering the geomembrane, and the power source is
grounded to the earth beneath the geomembrane. A mobile dipole is used above the geomembrane on
the cover soils to measure and record voltage in a grid pattern over the survey area. The voltage is
'6004 Ponders Court, Greenville. SC 29615 t864,288.1265 A854.288.4430 '—w1 [e-mail]
BLECORP.COM

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Report of ELL — Dipole Testing Method
R.J. Reynolds Landfill — Existing Landfill Cap
Rural Hall, North Carolina
November 23, 2021
BLE Project No. J20-14576-01
recorded in real time by a data collector and is graphed for post survey review. If a leak is detected, the
current will exit the hole in all directions and the pattern is generated as a "bull's eye pattern" by the data
collector display. The data collector will provide the information to show the leak area on the post survey
drawing. A sensitivity test will be performed prior to testing. This ensures that the peak -to -peak voltage
created by the specific minimum hole size measures at least three times that of the background noise of
the survey area. Survey grid spacing and the effects of moisture conditions can be established during the
sensitivity test, as well.
SERVICES PERFORMED & RESULTS
Site Condition Observations
BLE mobilized Engineering Associates Mr. Brian Keyes and Mr. Jacob Nichols to the site on
November 19, 2021, to provide the subject services. Prior to and during the ELL survey, construction
of the Existing Landfill Cap was complete and no isolation of the soil cover from the soil outside of the
survey area was established.
There were 2 areas within the 4-acre section of Existing Landfill Cap that were identified for ELL
surveying based on visual inspection and walk-through during ELL setup (see Figure 1). The 2 areas
were located near the top of the Existing Landfill Cap and near the toe of slope (bottom) of the Existing
Landfill Cap. The area near the bottom of the Existing Landfill Cap was observed having a slight
depression along the surface.
ELL Survey
On November 19, 2021, ELL technologists began performing the ELL services on the soil covered
geomembrane on the Existing Landfill Cap. The ELL survey was performed with temperatures ranging
from approximately 65°F to 75°F, with clear sunny skies.
Voltage was applied to the soil cover above the geomembrane with the power source connected and
grounded to the earth, outside the survey area. The dipole equipment was calibrated by performing a
leak detection sensitivity test, as outlined in ASTM D 7007. An artificial leak, 1/4-inch in size, was
placed below the 24-inch-thick cover soil layer onto the geocomposite drainage layer surface within
the limits of the survey area. During the leak detection sensitivity test, background noise and artificial
leak signal plus noise data points were evaluated attempting to locate the artificial leak. The leak
detection sensitivity testing determined the peak -to -peak leak signal plus noise -to -noise ratio was very
limited and the artificial leak could not be detected. This is typical when no isolation is established.
Additional sensitivity testing was performed attempting to locate the positive injection point that was
being used to charge the soils in the Existing Landfill Cap. The positive injection point was located
using the ELL equipment from a distance of 30 feet. The ELL survey was performed using the
sensitivity data established during the additional preliminary testing.

1t 1m 1i
Report of ELL — Dipole Testing Method
R.J. Reynolds Landfill — Existing Landfill Cap
Rural Hall, North Carolina
November 23, 2021
BLE Project No. J20-14576-01
The 2 areas within the 4-acre section of Existing Landfill Cap were surveyed at a spacing of
approximately 10 feet. The voltage recordings and locations were documented during the ELL survey
using GPS equipment and mapping software. The final ELL dipole survey was completed on November
19, 2021.
ELL Results
Following the ELL survey, the voltage recordings were loaded to a mapping program. The voltage
recordings and mapping data were reviewed to determine if leaks were present. Following the review of
all voltage recordings and mapping, we concluded that no anomalies or leak patterns were detected
within the Existing Landfill Cap. The ELL photographs and field sketch (Figure 1) are attached to this
report.
XXI II►1C
We appreciate the opportunity to provide our ELL services for the R.J. Reynolds Tobacco Company on
this project. Please contact us if you have any questions or comments regarding this report.
Sincerely,
BUNNELL-LAMMONS ENGINEERING, INC.
Andrew A. Colby
Department Manager
Attachments: Photographs
Figure 1— ELL Field Sketch
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NO. 033318 : c
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Jeffrey C. Helvey, ��l U l ►Ci t
Principal Engineer
Licensed, NC #33318

1t 1� 1i
Report of ELL — Dipole Testing Method
R.J. Reynolds Landfill — Existing Landfill Cap
Rural Hall, North Carolina
November 23, 2021
BLE Project No. J20-14576-01
Photograph 1: Existing Landfill Cap with side slope berms and terraces.
Photograph 2: Existing Landfill Cap near toe of slope and depression area.
Photos-1

1t 1� 1i
Report of ELL — Dipole Testing Method
R.J. Reynolds Landfill — Existing Landfill Cap
Rural Hall, North Carolina
November 23, 2021
BLE Project No. J20-14576-01
Photograph 3: ELL survey of Existing Landfill Cap in -progress.
Photograph 4: Performing ELL survey of Existing Landfill Cap.
Photos-2

DRAWN: DATE:
BDK 11/23/2021 jj IM BUNNELL ELL FIELD SKETCH
M LAMMONIS EXISTING LANDFILL CAP
CHECKED: CAD: ENGINEERING
AAC R.J. REYNOLDS LANDFILL
6004 Ponders Court, Greenville, SC 29615 RURAL HALL, NORTH CAROLINA
APPROVED: JCH JOB N0: J20-14576-01 Phone: [phone] Fax: (B64) 288-4430
FIGURE
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